Document rBXmynwdEBOpDDjQ3yanYK3V0

THE DOW CHEMICAL MIDLAND DIVISION July 30, 1969 INTRODUCTORY & SUMMARY REMARKS H, T. Badley Introduction: Many of you gentlemen have waited some time for this get-to-gether. I'm,sure the following presentations by Dr. Ducommun, from our Medical Dept., Roy DeGesero, from Environmental Research, Roy Anderson, from Organic Chemicals Mtnce. and Larry Warren, now Supt. of Construction in CCP, will be of vital interest to you. There are several reasons for this interest on your part mainly however, a request by the coverers on "How Does the Handling of Asbestos Content Insulation Affect Me?11 Other interests certainly will be, "What are the Solutions?" and "How Should We Implement the Solutions?" Solutions to a problem sometimes cause other problems -- a couple in which the production people here have a stake, such as technology and costs. This, obviously, is a matter of concern to them. 00 o o CD CD ro CO 4T These fellows, that I named before, are going to present the problem to ypu -- the solutions, with time for questions. I'm sure you -- especially the coverers -- will be listening carefully. I'm hopeful that by the end of these presentations and Question fie Answer.Period, all of your Via q i cyar-eH DOW 00080 M#. |U(| - &/***} I would now like to Introduce 2X, DUOOMHUN from our Hbdicil Uapt. fcSfAACH . _ ' Mr. Degesero & Dr. Ducommun have presented the technical aspects to us with several recommendations ` - ;'you might now be asking yourselves "NOW WHAT DO WE DO?" . \. LARRY WARREN will now discuss PERSONAL' PROTECTION with Us. SUMMARY: /(> |W4 : As you can see, the past'3$ presentation,. questions * * \ erfid jnowe* p e, affects ALL of us. Thos*e of us. in \ `'m% a-.na' gement have a moral and legal obligation to see that .you have a safe environment in'which* to work. To continue'.our efforts to give you a safe place to work -- we are obviously going to eliminate any insulating material containing asbestos ASAP. Starting August 11, in specific areas, until adeq substitutions are acquired, approved resj?lratqry_ equipment must be worn. you for your attention. Da- ; p^UU /k*w" GO H CD O o o no co cn DOW 00081 *7*. ?.WF ..,- - ."r/Jl % v ;* ./ *' * . . .*?;::. i => llllf Zlll >lV* ^rsTgw****^. ' r * *. a. use IOcai ysiqrxvWW - ; ^-V-.iiWiV-'*. 2. USE AWROVED fOBJ^OI^ ^EgR* J.. ' ' '. . .' . :i \ . . 3. repwce DcayiTDia nater^s asbestos < i .v i . -/I **. ; *. * : .. . : s r- Z > * v. . * .5- J 4 .. i ,*i ^7 * Vk >:X.>\ .i V i ,* , r . ` ' * , I '* ` , j . ; * *. *. ST0000286 &. I Dow 00082 $.n Q1Q-: 1. WE HAVE A KNOWN HEALTH.' PROBLEM. ' . 't 2. THE SOLUTIONS' MAY . NOT' BE POPULAR. 1 * 3. WE HAVE A CHOKE BETWEEN PROTECTING EMPL0YEE HEALTH OR - OCCASIONAL DISCOMFORT. . ST000 0287 WE ARE GOING TO PROTECT YOUR HEALTH i r DOW 00083 Good day. Gentlemen. My name la Hoy DeGesero. Supervision requested an Midland pipe coverers9. here in Midland. These dusts contained asbestos and flberglas. I shall present the results of the study, conducted from January to April, 1969# then turn the meeting over to members of Medical and management. Before discussing what the exposures are, X'dllke to define a term you'll hear several times today. That term at i/fcaVTyou do, and ifow^rten/you do it, and jfoifeaocTraf a certain dust you fellows are exposed to at these times. We learned how often and how long pipe coverers perform the several most common jobs of pipe covering by talking to you men, your supervision, looking at the time study and from personal observations. We decided on this basis where to sample the air containing dusts caused by pipe covering. The sampling gave us a concentration number of millions of particles of dust per cubic foot -- an expression of how much'dust is in the air you men breathe. ST0000288 (SHOW SLIDE I) DOW 00084 ' 1 .* ST0000289 This table Is a list of the most common operations pipe coverer's perform: removing old covers, mixing adhesives and so forth. Next to the operations are the ft Day or estimated average time spent by a pipe coverer performing these operations. Then next to that are the mean concentrations In mppcf measured for each operation with ' each material listed, and the range of concentrations. Finally, we see.a column with the fractional products of* time x concentration, for each material In each operation. When this column of fractions Is totaled, we have arrived at a time-weighted exposure, and can then discuss the significance of this number. For men working indoors, the time-weighted average exposure to asbestos containing dusts was 4.9 mppcf In the 8-hour day* The time-weighted exposure to fiberglas (dust) was 0.5 mppcf. (SHOW SLIDE II) O This table represents the time-weighted exposures to asbestos containing dusts for men working outdoors. That number is 4.2 mppcf and'reflects the fact that some air movement outdoors tends to dilute the dust. The time-weighted exposure c to fiberglas dust was 0.4 mppcf. DOW 00085 3' :. After obtaining a time -weighted exposure, vie then relate this exposure number to the best current information available on the health experience with asbestos and fiberglas. A group of advisors called the American Conference of Governmental Industrial Hygienists has gathered up as much sound data as is. available from . laboratory research and field experience on the health problems associated with insulating materials, and the ACGIH expresses this information in numbers called the Threshold Limit Values; asbestos has one TLV, and fiberglas has another, different TLV. The Threshold Limit Value describes a * average concentration of dust to which men can be repeatedly exposed for 8 hours with no adverse effect on health. This average number can be exceeded for brief periods of time, provided such excesses are balanced by equally long periods of time when exposures are below the average Threshold Limit Value. For asbestos, the present TLV is 5 million ppcf, based on knowledge accumulated 30 years ago. Present experience with health problems in 0620000IS o0U OOOSfc Insulators and others working with asbestos has suggested that the Threshold Limit Value be lowered by 1971 from 5 mppcf to 2 mppcf, m light pf very subtle jjpaith problems* ' * . . y-* The TLV number represents good practice and Is used by most governmental agencies in maintaining.healthy work environments* As you can see, the time. -wr eightedi '**e xposures we have measured for asbestos containing dusts ay* above this proposed TLV of 2 mppcf* The time-weighted exposures for flberglas containing dusts are below the TLV for fiberglas dusts* That TLV Is 15 mppcf* i The Environmental Research Laboratory has proposed to management, three ways of lowering pipe coverer'a exposures to asbestos containing dusts to within the 1971 limit * They are j * (1) Use local ventilation (on the job air movers) to pull dusts away from the man's breathing zone, or . ST000029I 00067 oo^ ST0000292 (2) Use approved respiratory protection whenever men remove, cut, or apply. Aircell, Kaylo, High-Temp or Thormofeectoy, or when they mix Webers and' Armentite. (3) Replace present insulating materials containing asbestos with materials which do not present the health problems of currently used materials containing asbestos. G C Warren Portion of the Insulation Talks After all of the explanation and facts concerning the hazards of asbestos I can imagine a lot of you are wondering "where do we go from here?" * For years and years, asbestos and insulation value have been almost synonymous. The higher the asbestos content the easier it was to sell. Most of us were aware of the health problem, covering asbestos, but it seemed rather insignificant as it didn't seem to be affecting us much. ST0000293 Then there were a couple articles in our local paper concerning the affects of asbestos .on the respiratory system. These were brought to my attention and I in turn brought it to the attention of the Medical. Department $ Invirpraental Research. V/e decided that each of the coverers should have . a chest x-ray and at the same time we should have an inviromental research study to find out exactly what our exposure is. We were vctv pleased to find that none of our coverers had asbestosis. But when the inviromental research findings were told to us we recognized that we do have the potential for 0cr 2The' Doctor and Roy Degcsro have explained the causes of the problem and-the affect on the body. I'm here to tell you'we expect to .eliminate the problem.. If you will remember Roy gave usp three (3) things he thought we could do that would lower the parts per million of asbestos dust to a acceptable level. 1. Local ventialtion. You and I know this is not an acceptable method as it would be adMVfc- ifiz n o n n K 2. Use Bureau of Mines approved respiratory protection (show example). This is an acceptable method in most cases if we follow the chart I will'now show on the screen. If you will notice the removing of `aircell, Kaylo, high temp, and mag oxide have all been checked. All of you men who are in the trade I*m sure have seen the reason for this. Also checked is the applying of Kaylo and aircell. It was found the applying of either of these insulations caused the parts per million of dust in. the.breating area to * to to 5.7 which is above the limit. This was almost 351 of your work day. The mixing of asbestos shorts or plus one is also checked for appar nt reasons. You will notice that Fibriglas is not checked in any catagory. The reason for this has been pretty well covered by Roy 5 Dr. Ducommon. I will only say that I've heard DOW 00090 5 n many controversal words said about fibriglas, but never have I heard or read any thing by a reliable source, that said it was dedtrimental to your health/ In fact I *a i .* . have with me a pamplet put*out by the Industrial Hygiene Foundation of America from which I would like to read you a few excerpts. ? ,,4 1 would say that under same circumstances that it is some what uncomfortable.' According to most people, who have studied its iise, a person using Fibriglas insulation should wear loose fitting clothing, no tight belts or cuffs and they should keep clean. ST0000295 Talking about cleanliness brings up another point that bears mentioning and that is that shower time for men using fibriglas is not and I repeat no, automatic or mandatory for health reasons. A supervisor will grant shower time^if he feels the condtions warrent it. 3. keplace our present asbestos containing insulation with materials that don't cause a health problem. We have all of our resources on the lookout for replacements now, Ray Anderson will cover this subject further later on. These were Roys recommendations and starting August DOW 00091 a) as rvuch as possible'with non asbestos Fir^brglas foam glas, cermic foam, polyurethane, etc. b) When using insulation containing asbestos, a bureau of mines approved per the chart* We will passout a wallet site copy of the chart as you leave. for moi^ ST0000296 If wc do these three things there is no doubt in my mind that wc will be below the 2 M.P.P.C.F. limit that will go into affect soon. t .r Gentlemen, we have a problem; it isn't going away by itself* We feel we recognize the problem and we have the solution* You have heard the plans* We expect and insist that we get your.full cooperation to implement these plans. I'm sure some of you men are sitting there thinking about possible additional casts, and of the possible corrosion in some instances where a perfect weather barrier is not DOW 00092 achieved. We know we have had some of these problems in  5By working together we know that all the problems can be worked out* ' Our main objective today is to make the job safe for you men* The economics are important, but not of prime importance at this particular time*. Thank you for your attention, now here is Roy Anderson to talk about possible substitutes* Remember August 11th is the day that we must wear respiratory protection when working with asbestos type insulation. The card is your quide. Thanks again Here*s Roy. oo^ 000q3 ST0000297 1DI* TH?.DOW CHEMICAL COMPANY July 17. 1969 . .. \ v; As a result of his survey. Mr. DeGeser&.has made up a table showing ' * * * * under what conditions and with what materials ah approved respirator must be worn. This table has been reproduced oh a small card and each one of you will receive a copy. (Show transparency bn the screen.) I think you all know that there is a very good replacement for Aircell and that is Fiberglas. Fiberglas is'more than twice as effective as Aircell as an insulating material and contains no asbestos. (K factor . .61 versus . 29) Fiberglas is being used in every Dow division except here at Midland. Actually. Aircell should not be used on any job except for personnel protection. It is not designed for temperatures higher than 200 F. and we know it is commonly used on lines traced with 150# steam (375F.) 81j20000JLS At the present time we are trying out an expanded silicone (perlite) type of insulation called Careytemp 1500. This material does contain about 6% asbestos which is about the same as Kaylo; however, it is not suppose to be nearly as dusty. The Phillip-Carey Company has been doing some work on eliminating completely the asbestos from this material. More information on this material will be forthcoming as soon as an evaluation can be made. Hi-temp is a diatomaceous earth type of insulation which contains about 15% asbestos. There is no non-asbestos substitute for this material on very high temperature applications; however, its use is rather limited and it should not present a real problem; DOW 00094 (\ * e Mag Oxide is another fairly high asbestos containing insulation which, at present, is not being used to any great extent here in the plant. Mineral wool insulating cement commonly known as Webber's Cement contains about 10% asbestos and is quite dusty when being mixed with water. It has been suggested that the dry material be made up in batches large enough to last for a week or two. This would eliminate the need for a respirator each time the material is used. The use of Armentite is small enough so that making up large batches would not be warranted except in special cases. Every major manuracturer of insulation has been contacted with regard to new products available, etc. This practice will be continued and any time we can find a new product that will be more effective or easier to work with, it will be brought into the plant fbr~your use. Roy Andc-rson Maintenance Engineer 222 Building Phone 6-4456 rb DOW 00095 ST0000299 f I \ MINIMAL RESPIRATORY PROTECTION REQUIREMENTS.. X vl s,X r ST00003 00 Material i Air Cell % Xaylo (Cal sil) . Kish Ter.?. -\ Mas Gxice No. 1 Plus (Webbers) Ar.r.entire (Asbestos Shorts 352) Super Power Ther-.tobestos Fiberglass > I Rerove *' X Mix * I i Cut - f Aooly x *X . ..x..; X; * X* X * % x * 1X * * * : You eCSaTjbwear & respirator* when doing the above operations You thoui-d respirator* ( '* K'Zk Dustfoe or Sure Guard (R-2050) are the .only allowed types. DOW 00096 Masr { This ii the ip* liifo^UhJr&et.Lwrr; "itoy^diV&fy ; t y; ';` put together this morning for Jim Scovic. He seemed K:)i '** pleased with it and is sending copies ip the Productivity; ` Committee, j v.', * . # i:.; . '- :V*. ;Jv - */ 4 ' >C CSe*ee yVoAuit Monday.'* -v4' # Tom ST000030I 6 v. I DOW 00097 r THE DOW CHEMICAL COMPANY MIDLANO DIVISION July 28, 1989 -*J. M. Scovic cc: R. G. Carlson D. D. DeLine A. C. Wilcox INSULATION MATERIALS The Productivity Committee has reviewed your letter of July 24 with the attachments that outlined some of the economic considerations comparing Aircell asbestos insulation with Fiberglas. It is clear that we have not only a significant safety advantage with Fiberglas but an economic advantage as well. We strongly support your pursuing the necessary convnunication program within the Mainten ance organization that you suggest and taking positive action steps to discontinue the use, wherever possible, of asbestos insulation. W. H. F1eth For the^Productivlty Coimi ttee dmf OOW 00098 ST0000302 MIDLAND * July 24, 1969 THE DOW CHEMICAL COMPANY J. M. Scovic Manager of Services 47 Building INSULATION HAZARDS AND MATERIAL REVIEW (ECONOMIC PHASE) ' The prime objective in developing our program on insulation hazards and materials has been to correct a potential safety hazard we may have.' Attached you will find an economic analysis. This analysis is in much greater depth than we intend to present in our communications program as part of the formal agenda. This economic information has been gathered mainly for background information and will be used to answer economic questions which I am sure will arise. I might at this pointsay a few words about the attached exhibits. . ST0000303 Exhibit I is a letter written by Roy Anderson which is intended to be mailed out to the production representatives after they have attended our communications meeting. The objective of this letter is to reinforce our opinions on the merits of the various insulation materials. Exhibit II is a simplified, straightforward, hypothetical cost comparison. i Exhibit IH is the backup data used to develop the figures in Exhibit II. We have a factor in the economics of comparing insulating materials which we have previously not examined closely which is the thermal conductivity coefficient. The k factor for Aircell is . 61 while the k factor for Fiberglas is . 29. Over the years Aircell insulation has been grossly misapplied. The top temperature limit for Aircell is 200F. In order to have a working system we have found that additional steps have been taken to make up for this thermal conductivity coefficient deficiency. One that Is commonly used is the wrapping of the pipe and tracer with aluminum foil prior to installing the Aircell. A second method which is commonly used is applying Thermon heat transfer cement on the tracer to more evenly distribute the heat. By using the proper insulation such as Fiberglas. the need for i ese extra steps could be eliminated. The cost of these extra steps cer -inly must be taken into consideration when comparing Fiberglas and Airceil insulation. DOU 00099  J. M. Scovic 1 - 2- July 24, 1969 Exhibit IV simply state* the volume of Aireell insulation used. The latest figures available are for the year 1967. However, the insulation material costs are the current costs* It is undetermined at this time whether an increase in the volume of purchase of fiberglas would qualify Dow for a lower per unit cost. Exhibit V, which is an analysis by Roy Anderson, states the steam cost penalty we pay for under insulating when Aircell insulation is used without a backup of either aluminum foil or thermon- Our estimates do not include the additional cost of the safety precautions we will have to take to protect our people against the asbestos hazards connected with Aireell. We estimate an additional 20 minutes per day will be diverted away from the productive portion of a job into the safety portion of a job due to the use of respirators. This amounts to an additional cost of roughly $58, 000 on an annual basis.' The purchase of the respirators themselves and the replacement cartridges will add another $4, 000 annually. Shower time will not be automatic when insulator's install Fiberglas. The Foreman on the job will use his discretion with the insulators as he does with the other craftsmen as to when shower time should be recommended. I am sure that the cost of shower time will diminish as Fiberglas becomes a more accepted insulation material. Following is a combination of the data shown in Exhibits II and V reflecting the most extreme conditions. The example was to insulate 200 feet of traced pipe: Fiberglas insulated Aireell insulated One shot savings on insulation costs Steam cost increased $23 per year Return on investment 42.6% $506 $442 $ 54 I believe first and foremost from a safety standpoint that it is imperative that we change our insulation practices. 1 believe from an economic stand point the overwhelming use of Fiberglas insulation throughout the.country would certainly indicate an economic benefit will be gained from using it. 1 would like at this point to express my appreciation for the assistance that Larry Warren and Roy Anderson gave in developing the attached data. I think these.are two professionals that we can truly be proud to have within 4 our organization. DOW OOIOO ST0000304 J. M. Scovic - 3- July 24, 1969 Please feel free to contact me on any further questions you may have. T. J. Madden Maintenance Manager Agricultural Chemicals Production Organic Chemicals Production 222 Building Phone 6-2225 TJM:rb Enc. ST0000305 i DOW 00101 INSULATION ECONOMIC ANALYSIS AIRCELL VS, FIBERGLAS . EXHIBIT I * Roy Anderson's letter to Plant Supervision on insulation alternates and applications EXHIBIT II Summary of comparative insulation costs on a hypothetical job , EXHIBIT III Detailed labor and material cost comparisons EXHIBIT IV Aircell insulatioh usage and material costs of Aircell vs, Fiberglas EXHIBIT V Theoretical heat loss comparison between Aircell and Fiberglas insulation ST0000306 ' DOW 00102 Dr MIDLAND July 24, 1969 EXHIBIT 1 Page 1 of 2 THE DOW CHEMICAL COMPANY ST0000307 INSULATING MATERIALS AND ALTERNATES We are principally concerned in this discussion with materials which may be substituted for some of our existing asbestos-containing in sulation and how this will affect us economically. The use of Aircell pipe insulation should be eliminated from the plant. It should never be used in any application over 200F. and then for personnel protection only. It has a K factor of .61 as compared to .29 for Fiberglas. Fiberglas is about 25% more expensive to purchase; however, if aluminum foil is used.with Aircell, as is the case many times, it is questionable whether one is more expensive than the other. (See table of estimated costs attached.) Temperature wise, Fiberglas' is recommended up to 400F. It is available either plain or with a number of factory applied jackets, some of which are self-sealing. Ordinarily, we would cover the plain Fiberglas insulation with the same JM paper that is now-Used over Aircell.* It is necessary to wire the paper onto Fiberglas inasmuch as staples will not hold. This procedure makes the process slightly more time consuming than with staples. A completely dry piping system can be made up by using wedges of Fiberglas blanket for ells and fittings and covering these with preformed fittings of PVC. A waterproof tape can be used to seal the joints. In the temperature range of 400 to 1200F., calcium-silicate is still . the standard insulating material. As a substitute, we are presently making a survey of Careytemp 1500. This is an expanded silicon (perlite) material with a temperature range up to 1500F. It does not absorb water and has a very low chloride content. At the present time it con- . tains about 6% asbestos; however, in the near future it may be available in an asbestos-free form. The K factor is almost identical to calciumsilicate. Another alternate material for temperatures up to 800F. is cellular glass. This material is more expensive than calcium-silicate and should be used only where its special properties merit the extra cost. It is more dense than calcium-silicate and non-absorbent. This property makes it especially valuable where there is danger of autoignition. It is ideal for dual temperature vessels or pipelines. The material is < easily worn away by abrasion and for this reason tank heads should be ^ adequately protected. Glass cloth imbedded in epoxy resin is excellent <? for this purpose. EXHIBIT 1 Page 2 of 2 -2* * * ' t \ * - The material is available in preformed sections for both pipes and tanks. The K factor is very similar to calcium-silicate. The Dow Chemical Company has only recently entered this field with a material called Ceramic Foam. * . # ,4 t1 ' * If you have any questions or want further information on insulation, please feel free to contact me. '. Roy Anderson Maintenance Engineer ACP & OCP Maintenance 222 Building Phone 6-445$ rb ST0000308 f DOW 00104 .#f \ DOW 00105 * HYPO THETICAL COVERING JOB STOO00309 INSULATING A 2" PIPE SYSTEM PER FOOT exhbit ni i Material:, (Aircell .(J.M/Paper, ..29j>er fu' ' .30 per ft. * \ ; .59 per ft. r ka. r* ' (Aireell '$ 1.50 per ft. (J.M. Paper , 12 per ft. ; V $ 1.62 per ft. Aircell total cost: * \ * - % 2.21 per ft. ST00003 10 AIHCELL WITH ALUMINUM FOIL Material: . (AirceU * $ l(J. M. Paper (Aluminum foil $ . 29 per ft. .`30 per ft. . 09 per ft. . 68 per ft. Labor: (Aircell $ 1. 50 per ft. (J. M. Paper . 12 per ft. (Aluminum foil . 03 per ft. 9 1. 65 per ft. AirceU with aluminum foU total cost: $ 2. 33 per ft. AIRCELL WITH THERMON . MASA A/X cecc TH&MMQV Material: (AirceU (J.M. Paper (Thermon Labor: (AirceU (J. M. Paper (Thermon AirceU with thermon total cost: % .. 29 per ft. . 30 per ft. . 40 per ft. $ . 99 per ft. $ 1. 50 per ft. . 12 per ft. . 26 per ft. $ 1.88 per ft. % 2.87 per ft. Material: (Fiberglas (J. M. Paper Labor: (Fiberglas (J.M. Paper* Fiberglas total cost: $ . 43 per ft. . 30 per ft. $ . 73 per ft. $ 1. 50 per ft. . 30 per ft, $ 1. 80 per ft. $ 2. 53 per ft. *J. M. Paper wired on Fiberglas vs. stapled on AirceU ' m T DOW 00106 exhibit IV COMPARATIVE INSULATION MATERIAL COSTS Size (inches) 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 3-1/2 4 5 6 8 4-1/2 12 7 1967 Usage of Aircell (feet) 400 1500 4000 6000 9000 11000 20000 6000 3500 3000 2500 7000 4000 3000 1500 1969 Prices (per ft.) Aircell 1 Fiberglas $ .18 > .29 .19 ' .31 -22 .34 .24 m ,26 .40 .29 .43 .32 .46 .36 .50 .40 .55 .48 .65 .56 - .64 - .88 1.46 ;52 .69 1. 48 - 1.18 82,400' of Aircell used in 1967 3ST00 00 1 I TJM 7-24-69 00107 DOW EXHIBIT V iv THEORETICAL HEAT LOSS COMPARISON BETWEEN AIRCELL A FZBERGLAS INSULATION Conditions: Assume: Equation: 9/8 inch tracer with 250# steam on a 2 inch product line 200 feet long. . Insulation thickness 3/4 inch That heat from 1/2 of the area of the tracer is absorbed by the product and heat from the . other half goes to ambient (70F.) thru the insulation. Q * k^At- where: Q =.BTU/hr, heat loss ^ k * Thermal conductivity - .A Area of pipe surface At * Temperature difference between tracer (370^.1 and surfaces being heated. - Ax * Insulation thickness in inches STO0003 I 2 At a product temperature of 150F. the heat loss difference between Aircell and Fiberglas is about 4500 BTU/hr.per 200 feet 2 inch line. This represents 3. 75 lbs. of steam/hr. or $23 per year. Roy Anderson ATP it OCP Maintenance DOU 00108 INSULATION SAFETY TASK FORCE Questions to-be answered: 1. What are the health problems caused by some of our present insulating materials? * *.. .2 What insulation materials have these characteristics? 3. What precautions must be taken when working with these? * 4. What are the added costs for taking these precautions?' 5. What ilternaterinsulation materials aravailable? * .6 What are the health problems connected.with them and what precautions must be taken? 7. What are the costs involved in reia`tibft$|Sip to the present materials? ,V i A' 8. What ihsulations do other plants use an yhat problems do.'Vf they have? * ' >% . . /V- *>*- ' : 9. What Is the life expectancy and the performance of the alternate insulations vs. the currently.used insulations? i. . i .10 What are the net arunial Division costs (savings) in changing our insulation practiced? s * "f* ; v. 11. What is the best niethod'of commuAfcating this change in practice to, and receive suppertJrorri,. the Division Staff, plant supervision, maintenance supervision,' an^ tKs 'lHpecoverers? . k 12 What 'has to be do'n^ and'hb$ long vyELf-it taW-for the-proposed change to become a'reility? v*::. - v ST0000313 TJM 6-17-69 OOU 00109 1 > ow < Z CA c > r> 2H dS E3 7 z -3 > H H H> 2 CA X tn R m H PJ CA t/> o o o o 03 -P* Vo O'- i +. THE DOW CHEMICAL COMPANY MIDLAND, Michigan June 24, 1969 ST0000315 L. Warren, PSU #6, 189 Building o . ' R. V Wood, PSU #11, 49 Building Ahlich, PSU #2, 759 Building * v. Vender Kllpp, Distribution Department, 572 Building Madden, FSU #10, 222 Building Bradley, Plastic Prod. Maintenance, 433A Building 3. B. Holder, M.D., Medical Department, 607 Building K. L. Gordon, K.D., Corp. Medical Department, 2030 ARC D. B. 2-torse, Safety Department, 401 Building wC M. MacCutcheon, Safety and Loss Prevention, 2030 ARC R. J. House, Division Accounting, 256 Building REPORT BC T2.1-1-64: **A SURVEY AND EVALUATION OP PIPE COVERERS' EXPOSURES TO DUSTS PROM ASBESTOS CONTAINING INSULATION MATERIALS ENCOUNTERED DURING ROUTINE PIPE COVERING OPERATIONS WITHIN THE MIDLAND LOCATION OP THE DOW CHEMICAL COMPANY" . Please note the following corrections in the above report dated March 21, 1969# by R. A. DeGesero. Page 6: Line 5, change 4.> mppcf to 4.2 mppcf.. Page 7: Line 10, erase 0.037 under the-last column entitled Time-weight Factor: Asbestos..* Page 8: Line 7, erase 0.1?6 under the last column entitled Time-weight Factor: Asbestos. Line 14, erase 0.162 under the last column entitled Time-weight Factor: Asbestos. Line 22, change the last entry In the last column entitled Time-weight Factor: Asbestos, from 4*5 to 4.2 mppcf. The above alterations in ra way affect the conclusions or recommendations of this report. /&>J R. A. DeGesero Biochemical Research Laboratory 1701 Building 6-4759 RAD:sJl DOW 00111 Biochemical Research Laboratory The Dow Chemical Company A SURVEY AND EVALUATION OP PIPE COVERERS* EXPOSURES TO DUSTS PROM ASBESTOS CONTAINING INSULATION MATERIALS ENCOUNTERED DURING ROUTINE PIPE COVERING OPERATIONS WITHIN THE MIDUND LOCATION OP > THE DOW CHEMICAL COMPANY Vila I tt.1-1-64 .... Date: - March 21, 1969 By: R. A. DeGesero : Signed Checked CV Date ^ Date <24 /?/ 4f6f. ; ST0000316 PROBLEM 7" Supervision requested that the Environmental Research Laboratory survey and evaluate c.\ .-rent levels of pipe coverer's exposures to dusts from asbestos-containing insulation materials commonly used within the Midland location. CONCLUSIONS 1. The present Threshold Limit Value (TLV) for asbestos of 5 mppcf will remain in force until 1971- Barring information to the contrary, the TLV will then be lowered to 2 mppcf (million particles per cubic foot). 2. Men are encountering time-weighted exposures to dusts from insulation materials containing asbestos approaching but not exceeding the present TLV of 5 mppcf. RrcmBTrmpn. unMn ' tn-.,. ' DOW 00112 2 3. Men are encountering time-weighted exposures to dusts from insulation materials containing asbestos; exceeding the proposed TLV of 2 mppcf. 4. if exposures are to be reduced to withlp tentatively accepted levels. (2 mppcf) either the use of asbestos-containing Insulation materials must cease, or pipe coverers must be protected through effective use of approved respiratory devices and/or local ventilation^ RECOMMENDATIONS' 1. Pipe coverers should be educated to the true hazards associated with the several types pf.'insulating materials they presently use. 2. Pipe coverers should be made aware of the several ways of protecting themselves during unavoidable, potential exposures to dusts containing substances known to be highly toxic, such as asbestos. 3. In the future, pipe coverers should be educated to the true hazards associated with any new types of Insulation materials to be used, prior to use. DOW 00113 ST0 0 0 0 3 17 k I *. 3 / : PRESENTATION OP DATA Indoor pipe covering operations were surveyed from 12/24/68 to 1/22/69*' Outdoor pipe covering operations were surveyed from 2/20/69 to 3/5/69* Air samples to account for "miscellaneous" portions of the pipe covering functions were obtained 'from 3/1/59 to 3/5/69* Sampling and Analysis A total of 141 .breathing zone samples were collected / il in midget impingers and annaallyyzzeel emDpllooyy!ing standard light field .V microscopy techniques for determining dust concentrations from insulating materials containing asbestos. Concentrations found in samples were expressed in terms of millions of particles per cubic foot of air (mppcf), according to the following formula. mopcf (mean particles/quarter field) x 4 x 1000 x sample volume liters (pump flow) x minutes x 3*51 x 10~2 ^ min. liter ST00003 I 8 1Patty, P. A., INDUSTRIAL HYGIENE AND TOXICOLOGY, Vol. I. Second Revised Edition, p. 198. DOU 00114 The means and ranges of concentrations found during sampling are listed in Table 1. Job Analysis and Description ` An environmental job analysis provides an estimate of the frequency and duration of men's exposures to dust concentrations surveyed. The job analysis expresses as per cent of the day {f day) the probable time distribution of pipe covering operations, averaged over several months.' On any given day the pipe coverer's routines can be expected to vark. .'-cm the estimate. The job analysis reconciled input from discussions with pipe coverers and supervision, observations during sampling, estimates provided by an Industrial engineering time study, and a questionnaire filled out by the pipe coverers. A sample questionnaire is found on page i of the Appendix. The questionnaire requested that men estimate the per cent of time per day they spent working with the most, common Insulating materials. Men's averages were converted into ratios of time spent {f day) per operation and material, and are listed in Table 1. Thirty-two per cent (26 men) of the Midland coverers responded. Responses concerning rarely used materials (e.g., cork, styrofoam, some putty adhesives, etc.) were set aside. Other Information furnished by the coverers Included: DOW 00115 ST0000319 V 5 Average age: Years covering within Dow: Years covering outside Dow: Wear respirator? Which materlal(s) are the.dustiest? 40 year* 18 0 Yea: 17 men; No: 9 men tfaylo: Flberglas: High temp.: Superpower: Mag oxide: Aircell: 16 men 14 men 11 men 6 men 2 men 2 men Time-Weighting Exposures Men's exposures to dusts from asbestos-containing insulation materials were er*'* :t;d by "time-weighting." The exposure frequency and duration (* day) to each material is multiplied by the mean concentration in air of each material, giving a set of "time-weighted factors." The "factors" (product of * day x mean concentration) are then added up for the eight hour day: 100* Time-Weighted Exposure E 1~0 - * day x concentration 100* . or,* E * (time-weight factors) 1-0 (/ ST0000320 DOW 0011^ 6 Table 1 lists the % day, mean concentrations found, time-weighted factors and ranges for each mata erial encountered In th* e listed operations. The time-weighted exposures to dusts from asbestos containing materials were 4.9 mppcf (Indoor operations) and t b*5 mppcf (.outdoor operations). DOW 00117 STO000321 7 Table 1. TIME-WEIGHTED EXPOSURES OP PIPE COVERERS TO DUSTS PROM ASBESTOS CONTAINING MATpRIAI^ Operations Materials * Day Concentrations (mppcf), Mean Range Time-weight Factors Asbestos Remove Mix Cut Apply Air cell Kaylo Mag oxide Piberglas No. 1 Plus Armentite Superpower Air cell Kaylo Piberglas Others Air cell Kaylo Flberglas Others No. 1 Plus Armentite/ Superpower 1.2 1.6 0.2 2.0 1.6 0.1 ..a 5i o. 6 2.2 0.6 15.8 19.9 4.5 2.6 -4.8 2.4 ` 11.4 11.2 2.8 13-7 13.5 9.6 34.9 3.0 U.7 1.7 5.7 5.7 2.4 9.6 2.1 0.3-24.9 3.7-20.5 1.8-4.6 1.2-33.7 2.2-30.5 2.7-13.5 19.6-6.14 0.6-6.2 4.9-23.1 0.8-2.6 --- 0.2-16.4 0.4-22.3 1.2-3.8 1.1-39.5 0.9-3.9 0.137 0.179 0.006 --- 0.219 0.010 --- 0.177 1.030 0.037 --- 0.901 1.123 -- --- 0.461 0.050 Clean up removed covers Stocking ; get new covers Move to job, set up Breaks, lavatory 3-0 2.0 5.0 15.0 8.5 2.4-24.6 1.0 0.1-2.3 2.0 1.4-2.9 1.4 0.1-3.9 0.255 0.020 0.100 0.201 Time-weighted exposure to asbestos containing dusts (indoor) in mppcf ZPS.Onnn i OOH OOU 8 Table 1. CONTINUED Operations Materials Remove Mix Cut Apply Air cell Kaylo Fiberglas Others No. 1 Plus Armentlte Superpower Air cell Kaylo Fiberglas Others Air cell Kaylo Fiberglas Others No. 1 Plus Armentlte/ Superpower Clean up removed covers stocking ; get new covers Move to Job, set up Breaks, lavatory Concentrations (mppcf) D*y Mean Range 1.2 1.6 2.0 0.2 1.6 0.1 0.8 50 0.0 2.2 0.6 15.8 19.9 4.5 2.6 4.8 2.4 5.2 9.0 10.0 -- 9.6 17.0 21.3 2.5 9.4 2.5 1.5 9.2 3.6 1.4 5.2 5.1-5.2 3.6-14.0 5.5-20.2 --- 5.9-12.5 14.1-21.6 13.1-25.4 0.9-3-4 6.3-7.4 1.4-3.8 -- 0.3-3.5 1.9-17.9 1.6-6.7 ... 0.3-2.3 3.5-7.9. Time-weight Factor: Asbestos 0.062 0.144 ___ -- 0.154 0.017 0.176 0.148 0.827 -- 0.237 1.831 0.162 0.067 0.125 3.0 2.0 5.0 15.0 8.5 2.4-24.6 1.0 0.1-2.3 2.0 1.4-2.9 1.4 0.1-3.9 0.255 0.020 0.100 0.210 Time-weighted exposure to asbestos containing dusts (outdoor) in mppcf - 4.5 ST0000323 DOW 00119 9 Threshold Limit Values (TLV) . A TLV describes that time-weighted concentration of a material to which men can be repeatedly exposed for eight hours with no adverse effects on th. A TLV indicates a mean concentration which can be exceeded, provided there are corresponding exposures lower than the TLV. At present the TLV for dust containing asbestos is 5 mppcf using standard light microscopy techniques. Based on best current Information, the proposed TLV of 2 mppcf would provide better protection. A two year trial per preceeds acceptance of proposed TLV's. In 1971# 2 mppcf will be the TLV for asbestos, unless better information during the interim casts doubt upon the proposed figure. This report evaluated current exposures using the proposed standard of 2 mppcf if the material in question had even trace (<5) asbestos content. Manufacturers were consulted regarding the composition of the insulating product(s) found in common usage. The following table lists these materials and the per cent asbestos plus the appropriate TLV for thr* material. J i uuu(J324 DOW 00120 V v 9 or A ro 3 MS9* K 8M -3 OO i vn & O vO 01 -* StA \J\ A Q. C * A0) A SI3 0) <0 O an fei cAr ooAc c a A <0 40 i * a '* ff ~ O --* & A\JX -* VO tK 3 3 3>- A9 3 3O > tat S'A OO ao 3 3 5 1 a 3' 9 903 S S % vOON 03 ro # VJt O Oo to ro oO ii ca to . < fO ? o o o a ^3 cn -H o o o o CO f\J cn DOW 00121 DOvV CHEMICAL U.S.A MI HU CAN DIVISION In.-rcuiber 10, 1975 ; MlOlANO. KICMGAN <>. T. Corbat Purchasing *17 Building ' .. tic: T. Badley R. R. Langner R. W. Price 49 : ' 1803 : 824 INSULATION WEATHERPROOFING PAPER . . I have talked with Bob Price and Jack Badley about the insulation weatherproofing paper we talked about'the other, day. Both agree that you can now*proceed with the stop order you have for DVS of the Johns-Manville and/or Carey-Temp papers. I understand we are getting only the J-M paper at present. : From an Industrial Hygiene standpoint this will help.to ol iininate another source of asbestos, exposures in the Michigan Division and we support this move I Richard D. Olson industrial Hygione Services dO? Building ST0000326 |* c- * CO **.'?* DOW 00122 CCj S. fittft+t DOW CHEMICAL U.S.A. ____ fl-Ac*# &.tfjcuex- MICHIGAN DIVISION September 14, 1976 fcUOUKO. MtCHKSAM MO ''Milt Strom General Services 49 Building cc: T. J. Paquet, Division Engineering, 821 Building HANDLING OF WEATHER-PROOF PAPER Both the Johns-Manville and Phillip Carey weatherproofing paper used around insulation contain asbestos which can become air-borne. This type of paper should no longer be applied to insulation in the Michigan Division. It is no longer avail able from DVS. There are however many miles of pipe in the plant that are covered with this product. Since it does contain asbestos it should be treated essentially the same as asbestos insulation. These handling procedures can be found in Michigan Divison Safety Standard SS-140. These pro cedures include wetting the material before removal, bagging in plastic bags, labeling with proper labels and sending it to land fill. It has been brought to my attention that some of these proced ures are not being followed when the paper is removed from the insulation. I would appreciate it if you would pass this reminder on to your maintenance network so they can get it back to their supervisors. Thank you for helping in this communication. Richard D. Olson _ Industrial Hygiene Services 433 Building Jal AN ORtRATINO UNIT OF TXT DOW CMCMlCAL COMPANY *i DOW 00123 *ftfc' 3 ST0000327 0091 laaeo wo b e-; V tj90ba>f >90au 5 &* 9 *i 2<j -m T * *? $L" *|9i &O 2f m H5 ^S S; a1 It 11 f S<* 22,2ok V 5 ii aa e ^ f* 2>L 1 *2 3 II * V 3 1au . 8S AS 3a S-S a* i* e-2- i: ~O 15 56 2 5 $* -b0 e** . Eh S'". Z tb 30 5^6 i$i 2 is S *oM* a *: lu iB ,, J5-S " a53 3B ^w is ii 8? v6 1 i! a 1-2 IS s:; *5 <o 2< 11e t<t9. 0n nn 9 9 9 *o M^K4 (1 K N n w* M* M4 in m e s b 0* a* s 1j 2* 0 % 6us 7*i &S b0 49 _*o 52*2i & 0 9 0 juS ** ie*--*Zo ; 1< s* a S*3* *s a ej 3*g 3 4b1 A+ S5 i-s JM j<j. 5!1*> S. 2 Gu 2fc Ste fa AW2n>tV^/#l OO3 0MOO 7? 03 Oee v'# W 30 SMl SJV9 -f V0 . i MCIt4 3 3 2c sf 3 J au3.se iff : * -eM5 w%< &S s *i ^GO 3I* ; 25 ^o Expanded P erlite P o ly u re th a i Foam Expanded C Clasa c& 5 mB 1 bT3 9 if n w ?| I <an &P b. #* L* x S "i U< 3 i S I 00003 t 9 Q eo ) b9 <? e to DOW 0 0 1 2 4 r DISCUSSION Men were found to be working almost exclusively with asbestos-containing mater. Their time-weighted exposures to dusts from the asbestos-coni;. ing materials were in excess of the proposed TLV of 2.0 mppcf and barely under the present TLV of 5 mppcf. Steps should be taken to lower the time-weighted exposures to within proposed acceptable limits * . Several means of reducing the time-weighted * tposures are apparent! ST0000329 1. Cease using asbestos-containing materials.. If use of asbestos- containing materials was stopped, exposures would be reduced to acceptable levels, even though some low-level exposure would be experienced until presently Installed coverings have been replaced due to natural attrition* < 2. Effective use of approved respiratory devices* Respiratory protection is practical for Jobs which are of short duration and Infrequent occurrence* It can be seen from Table 1 that Jobs requiring respiratory protection are neither Infrequent nor of short duration. Men encounter greatest exposures during the cutting and applying of Air cell and Kaylo. These two operations are done for 50 of the day -- sometimes lOOJt of the day. Many other operations listed In Table 1 could require DOW 00125 12 i use of respiratory devices. Attempts to lower exposures to 2 mppcf by using respirators seem futile. . 3- Use local ventilation. This method would be effective If the ventilation could be kept close to the dust source. Pipe coverers1 work routines make this difficult; e.g., working aloft, or In cramped areas. In the event new types of covering materials are used, men should be Instructed regarding the toxic properties of the materials and the hazards associated with using the material. Protective measures to prevent or lower undesirable but unavoidable exposures to the material should be well understood. Any education effort must precede or be concurrent with first usage of new materials. Turing this survey, most men voiced strong objection to flbergias, asserting that flberglas Insulation materials were far more hazardous than asbestos Insulation materials. This contention is not supported by 23 years.available field experience and independent laboratory testing on flberglas. The Environmental Research laboratory will survey and. evaluate upon request any proposed types of insulating materials and relate their usage to the health hazards associated pith these materials. ' DOW 00126 ST0000330 ST0000331 13 UNIT INDEX . : Pipe covering operations *$rt surveyed and evaluated. Men received time-weighted exposures to asbestos hear the present Threshold Limit Value of 5 mppcf and In excess of the 5 * tentatively proposed Threshold Limit Value of 2tmppef. Steps should be taken to reduce exposures to the proposed new standard. DISTRIBUTION L. Warren, Field Service Unit #6, 189 Building R. Wood, Field Service Unit #11, 49 Building H. Ahllch, Field Service Unit #2, 759 Building B- VanderKllpp, Distribution, 572 Building T. J. Madden, Field Service Unit #10, 222 Building j. Bradley, Plastic Prod. Maintenance, 433A Building B- B Holder, M.D., Medical Department, 607 Building H. L. Gordon, M.D., Corporate Medical Department, 2030 ARC D. B. Morse, Safety Department, 401 Building S. M. MacCutcheon, Safety and Loss Prevention, 2030 ARC R. J. House, Division Accounting Staff, 2.56 Building RADtSjl DOW 00127 THE DOW CHEMICAL COMPANY Midland Division April 16, 1969 ST0000332 J. M. Scovlc Mgr* of Services 47 Building EXPOSURES TO DUSTS PROM INSULATING MATERIALS CONTAINING ASBESTOS The following are the plans for continuing attention to this problems * 1. Medical's presentation to Mr. Bosscher's staff A.S.A.P.* citing problems and solutions. 2. Presentation to the Union Committee Immediately thereafter. 3. Presentation to the coverers in the two days following the Union Committee session. This would be in 4 20 man groups. I will be glad to give you a "brief" on this at your convenience. ____ M. T. Badley Mgr. Field Const. & Malnt. 49 Building i ! 0012B DOW appendix EWIROmFHTir. pfctARCH OUESTIOMMAIRE P'ease answer the following question*. as completely as possible, using age estimates* / Name __ Man # ' Age Number of years with Dow - Number of years covering pipe Do you wear a respirator? Yes___ No '' What sake ______ if yes, list those operations during which you wear h respirator______ fhat per cent of the day is this? ' _______ lave you covered pipe or handled covering materials outside of Dow? fes______ No______ Xf yes, how long did you cover pipe? xnswer the following if they apply to vou. "Cmuch time per day do you* Ta) Remove old fiberglas covers? (b) Remove other types of covers? List other types you removes M s * . U) Mix "plus one" webbera? W Use power saws? Other adhesives? List what you cut with a power saws (e) Use hand saws? * List what you cut with a power sawt ow much time per day do yous (a) work with "air cell* _ ) work with "Kaylo* 6 Work with "Hi-terap" <d) work with fiberglas feich job(s) do you consider most dusty? often do you do this job(s)? ST0000333 ^ . DOW 001^9 PLEASE RETURN FILLED OUT FORM TOx. LARRY WARREN, 189 BUILDING INSULATION STANDARDS FOR PIPING AND EQUIPMENT c This Publication was prepared expressly for use by the Employees of The Dow Chemical Company and its subsidiaries. QV H ENGINEERING DEPARTMENT ' g THE DOW CHEMICAL COMPANY : fv. Midland. Michigan _ ^ December. 1952 THIS COPY ISSUED TQ-______________________ _____ _... OPMAOE: W. A,D.-w THE DOW CHEMICAL COMPANY. MIDLAND. MICH. . f INSULATION CHECKED: 1*1(0. Arro: '74)S\\ DATE IEM2-&2 . , TITLE SHEET .. ................ A. *' , STANDARDS" , .I. N-4 000 -. 'v _ . * *ur ..... . lL DOW 00130 A U: ~tr r l ST0000335 GENERAL NOTES Piping and tiqulpment Insulation Standards have been prejiarkd etpregi*;y ly for use by employees of The Dow Chemical Company and.Contractor*^*? ?. engaged by the Company.* These Standards have been designed to fillrFM.* quirements of the Englneerlng,Purchasing and Pipe shop Departments.of?' the Company and similar requirements of outside Contractors engaged in * Company work.* 1* DESIGN and BILUNG5 NOTES : : rVlV'^:--V Designers shall pay particular attention to'the vAri&is tHicirs .; nesses for the different pipe sizes to.Insure providing neck's** ; sary clearanoe between parallel plplngjor piping close to wkllS, ceilings or equipment** . > ; V`1;*:7T fr;y Designers shall specify site and quantity of Insulation require* ed for blocking across flanged pipe fittings and `Valvesj*eld*... end valves,equipment nozzles and other equipment, flanges .which are to be Insulated** These Items are often, overlooked and are not available unless they are bllledi listed and. purchased for. respective applications.* ; ".kv.V;14., Bills of Material shall list the following! a* Kind,type,site and quantity of Insulation proper!: b. Kind,type,sire and quantity of insulatlori .fir blocking In flanged flttings,valves,nozzles, c. Quantity of weatherproof felt if required**' p. d. Quantity of galvanized sheet metal if required.,; e. Sundry materials shall be billed as #One lOt dries consisting of muslIn,paste,staples,asphal t mas tic ...etc.*1 Refer to Sundries, IN-203* JOB PREPARATORY work ':*;` r -I ; v ' '* -:;iw** a. All surfaces shall be clean beforhee applyingg innssuulala*tibh*^. All loose scale,dirt,etc.,shall he removed, wire brushlhg.,' where necessary** * ; *.:>' b. Vessels for hot Insulation do not require siridblastingand' painting unless in.badly rusted conditioneri-r e. Vessels for cold, insulation shall be sanriblastid.'And f&iht*: ed one prime coat In the shop and .a second, coat /of the Same. . in the field.*. -.' *;;i ; *'.V ViV.'iitT.' 'j:.; d. All piping and equipment shall be tight.before..lhshl&HOn is applied.*Testing for tightness, particularly Jh.hek cOhstrue- tlon, should precede appl Lcstlon witerever.-practical: and possible* . e. piping and equipment shall not be covered, ifi iet Sf '-ffosi-. ed eondltion* Thls shall be especially adhered,to lnvceld * Insulation work* 3* . INSULATION JOINTS : : ,:v'. - ' / - : >'' f All Insulation Joints .skh.1a1ll Itime Xtrau,IAe,eve'hkandflfiikr^elly ttkiaui titWsi IiX6X$ke(i>er* w ; * Styrofoam and cork joints'Shall be sealed Arid ftAfcLAbsOlu tuighnt against entry orf. moisture* . ; s ; - X\ r ..... . . s.p.r. eettNtfc'U)/i4 d* J ; all wires and bands shall be applied Straight .Viid SKiWrt'UfjjhY;^, so as to prevent loosening.- Kinking of wire loopa.^ id order ^td take up slack is prohibited*: t_.J>^:^>.* GALVAN I ZED IRON SHEET.- Uses, And Application^:?; ^ 5: ** .! A. PIPING No.j{6 ga.gaivanited iron Aheet shall 4i VifeS ISh^;- lnaulated pipe .-as-follows*... 1. Wherever heceessssaarryy to protect ihaulfctlimvfrSiii *T:V* physical .damaagge. \ , :. , . d}ivi:frlx rj,*;-. * s 2* On covered lines io s point bftiibove flOor Ofy platforw but. only when necessary to protect .th4hi.`: 3. On all Covered lines wherever it-say-be.necessif? . for operators to step over themln line of. duty^ 4. Application procedure. - ;>: ; : ; .v' Follow the same general procedure*as outlined r? for weatherproof Fltj.lN-4bl* All;lipS shall* is sites at specified on IN-482*.:All horicohtal laps shall be positioned so as to khedrWatsr ahd Shall be concealed as far as p6sSibleAll'i4pa:AhAll be fastened with sits Ho*7 t'f*** ftH.shSst. WNtal v screws# (P-K or approved equal)^placed on;.4^;seb* ; . ters..'. u*e^4a"* drill.\-;:v:^.;u,r^ & ;V # A V ' r ' .V-l y> .``i* ** For Width dimensions bf .shset:.Mtii'Stfipa/fo^*^ . various covered pipe sites refer>tb'iN*48at-^^ - .> .- ; tVr-V;";V`iUi b. Equipment, timess otherwise Specified iiS&JSb' jga^aivAnitid;; iron shoet*jfastened wtth >No*i-*4.t|/i!-ftH^hefcAi,: screws (P-1 --. ... . Paint INDOOR and WEATlIEllPliOpF FlblSbi gee various Application SheetS :for TietaiiehieethOds<.`iV^ ^ ;u *' V-T?''? -' a* Indoor Finish is designed for indoor;.uSWV^hly.7i?^f?* - where conditions provide genSfai lhripof pfdteetibfta* b. Weatherproof Finish is designed for but^Of^dobrs or where Insulation will be exposed to.AtcesslVd j moisture.water or corrosive Conditions.'Where iil&H conditions exist indoors,Weitherproof Finish-Shall be used.- *i 4. PAlfcTINO . : ; ;- Vi .><vyV ;-v:' insulation, shall be palnted9wher<i callsd foffaccording tb .the latest Dow Manual of Painting Specifications Of the Midland Plant,unless otherwise Specified.' Copies of this msnualare obtainable from the j * -. vm9mmfw, pit ( * - i * . i t- -- ' " j ?' .*<. i ' s ' * '..TT *M''* "" * Vll1lTV."'MW j .V*. ":<; ECONOMIC THICKNESS AND. AMORTIZATION POLICIES. *;,*\v .**. t v; v. *' . '"'' V- * for the purpose of calculating the six* and thickness of thermal***;;"-' Insulations,pipe lines and equipment shall be classified and instill-,* tion shall-be designed.In accordance with the policies outlined beloi* . Since it Is not possible to list all conditions which aay.be encount ered,this outline will serve as A guide for special cases** !: Long Term Investment Class :* < ..a: Insulation for pipe and equipment in this class shall he dl- ./ signed to produce an 'annual.rate of return on the investment** of not less than 20 percent*'This corresponds to an -amortisation period of 5 years on the total inatalled cost of the Insulation* included In this class are! a. steam distribution mains*' V*--" T-! *^v b. Slain steam lines and principle equipment lft power Rouses , pump Houses, Boiler Rooms, etc* ; cvpipe lines and equipment ln.permanent laboratories,shops,etc* d.*Permanent refrigeration and air conditioning-system* 2*- Short Term Investment Class** ^ 'f insulation In this class shall be designed for an annual r'aU of return on the Investment of 35 percent, or an amortisation period of within 3 years* a. ' included here are branch or connecting lines from difc* trlbution mains to operating equipment*'.,-- ' - b. include also process piping and process equipment in general* However, operating conditions may dictate thi type, kind and thickness of Insulation in order-to meet process requirements* :k-/r' ' 3*- Minimum Thickness Class 1.' * <*.- a* Piping and equipment in pilot or semi-plAnts shall tiae. minimum. thickness of Insulation;, or be designed for *u iOU percent annual return (one year-aaortixatlonjwhlftn- ever results in the greater thickness* ; b. Pipe lines heated by steam or water tracbf lines khall be covered with thick 3 ply Air eell insulation* See IN-305* - V, c. Insulation required for safety or protection of person nelshall be mimiaum thickness or greater If necessary i to Insure outer surface temperatures of hot over i35 degrees F*- .' **;. - ST0000337 MAOCi W.A.D -- CHECKtO:^^;;'). Arro: . .] or 3 THE DOW CHEMICAL COM'PAMW'MlOAli|D>^MtCA"i.,-'..'iN5ii|,^ATloN tCONOMIC Til JCKNKSS AND AMOIIT IZATI0.1 I'OtiJC It'S ' ^ i 1 STANDARDS D0U oo133 7~~~~Z------"I the following tables have been prepared to simplify Selection M*..;** * tvpe and thickness of insulations and say be used in os t ` cases / However,for long pipe lines and large itees of equipeentjwhere the, eeount of Insulation so Justifies,separate economic studiesshould; . be ade* '-.i v.\! -v\ Piping Insulation Selection Chart Equipment Insulation Selection Chart &5 Magnesia Thickness Table Xsylo Thickness Table . " 4 High Teep.Thlckness Table ! Plberglas & Mineral Wool Thickness Table * IK-ibl -t , . IN-102 . 7^ -IN-lUtf ,i. V 7 * .' IN-104 ,:* ;4 . IN-105 ./:J. ,'r' J; V . Ih106 -C .* ^V. ` ' A 8 & 0 0 0 0 1 ,S *:.*V4:* - I.'-.-' *'t'. * -./.''jr' J;- *-**:-'. . ..-v* r . ... ^ .. w 1 y.' -v - ; V**:- l-'V- .. ..._....... . K'.< vf-' " . .. . - - i. : , .. ; r \ 5 . k. s - ; *t , - i. . -rv- V,: V-i ; 1` h *../ .: . . . . -. / /* ; r* ..... * A 't j.' 2.* }rv;:.,;.r.. .. J . '< ..* -r *; ta,.,- *nr\- :, i ^\ *.- - --v ^ ; ^ -:^ J: , MAOb tt.g.D* THE DOW CHEMICAL COMPANY, MIDLANP^MtCH/', tHKklDj'ltftfJy, ECONOMIC THICKNESS . . AUOKTIZATION POLICIES i-ffiiitANbXNtb^ - DaTf 3-1CK50 Kftt IM U REVISION DATE: lg9-52 DOW 00134 -lTt n'| > ^ V. ` - * : . i ; v "4.; - * ASPHALT VAST1C - > - -*`v' % .. *,u '.r-r t::* *> - > a Where asphalt was tie is to be used on equipweht insUlAtion* the Insulation.is first covered with i#i hei*wesh;fcatvahltad iron netting,laced on swooth and tight. The asphalt nestle, shall be applied in two separate coats, each Goat ]/$ thick* It shall be trowelled, to a swooth finish and be vjp thi'bk . when dry** *' .** - b. Valves and fittings, 14*< and larger* shall be.finished 11 v*r () .. Valves and fittings less than i4*t site he*.wesh netting. 9.` SMALL DIAMETER VESSELS do hot require-the <T. '.i i For vessels 3*-o*i in diaweter and Swaller, usewoldedpipe in sulation (sectional) or curved blocks on the bodies,-and,flat. blocks on the heads* on swall dished heads wlth.dlawetef1 19*. * or less, wlneral wool cenent way be used as an alternate to, ,~ blocks ' ^* 10 STANDARD PUNT WATER HEATERS Bodies and heads of these units shall be instilaten.-with iojt Magnesia and covered with V*". asbestoA cewentj * finished rotlh ana overlaid with hard finished cewent trowelled, swooth*; For hard finish cewent forwula,refer to. IN-204*2::Paiht-:4 piif.. Dow painting Specifications. Coll flanges,hand holes or other rewovabis openings jlised fof walntenance shall not be covered*' k ' ^'Vi;-0- .. - *. _ , T . v-j. S'* liAOCiS P*F** CHtcetw.dcax^ arrot BATt 8-10*00 THE DOW CHEMICAL COMPANY. MIDLAND. MlCH.n WVIWION DATE: OKNBIUL NOTES * ... v..;. - ^ '--M DOW 00135  v* r -.*.*.^V '* - 4/ , : ... .: v `!-,r^"V''<V * ir.'JL.t - SUKi)RlfeS / T S^TQXl tKr following *at*rlals bfe required in th* Appiicafclon'ttf/pIpiTtjfAKri"; equlpaent Insulations* They are Dow.Stock and/or Austin 5068- itMJU^v ; Respective stock code nuwbers `are listed ac c ord i ng 1 y i:.-?/>:Y .*r/-& r^Yio. , ... ; ' - ** '<<* .>i-: tei simplify their handling bn bills of aiterialj It id not required to,:: bill out sundries in detail withn the exception orf nw*eRaitnherrpprrooooif Refer to'Design and Billing Noteoss, 1N-201-1* . :KT'?*1* -INSULATING CEMENTS i . ; - :. t ^..,vV; * i*- forty Eight Cewent Dow Stock Code No.200270 Austin 5655 Code No.30028 >* !2 Super *66w Cewent Dow Stock Code No.200294 Austin-5658 Code No.30029 $V MW No.SO Cewent - Dow Stock Code No.' Austin 5656 Code No.3u030 *. jAt aineral wool cewent foorr US!i## o3^b/j1tf6c .;* ieoo*F. supplied by forty Ktghts4fi*\V eulatlons* Jnc.,tn 50 Lb.bagfi* CPVhf* age 25 *q*ft#l"i thk.per A aineral Wool eewerit: 1B00*F*.Supplied by Eaglfe Pich>r;.CoVi'f in 50 Lb.bags Coverage 25 Sq*;ft*ifi thk P*r bag* - r V;,vi , , A aineral wool cerent for use lip td.' 10OO*F*` Supplied by Philip CArey 'ljfgl Co.,in 5u Lb.bags.coverage 26 sqvftii ; 1-. thk.per bag. ... * 4* B-H No.l Cewent Dow Stock Code No*' t Austin 5656 Code Ko.jootfi A aineral wool ceaent for iise .ttp.rto^' 1800*K* Supplied by BAldwin*fliil in 50 Lb.bags. coverage. 26Sqr.ft'ii' i. thk. per bag. 5* 85i Magnesia Ceaent Dow Cod# No.200266 Austin 565o Code No.30032 INSULATING FINISHING CEMENTS 8*` No. 152 Ceaent . Dow Stock No* V*. Austin 6656 Code No.30008 A Magnesia base cewent for ust irp t6?i 600*K.' Available froa Dow Stock .IK; **- 50 Lb.flberpaks and J-M,Philip CarryY and others In oo Lb.bags .coverage .3b and 35 sq.ft*reapeetivelyi-,i*thkipar bag. . . . - ' ..} i " . 1. ..... ' i i' 'v- ..>* \.V* * r -............ *. rvT..'.'r-c . n asbestos base finishing Weaerit roi* use up to 1000*F* Stippllad by Ara^.i v- strong Cork Co.in 100 Lb.bags. cover* age IB aq*ft>i-i thk*.par^ bfcg/^.vi 7* No.352 Ceaent Dow Stock Code No* - Austin 5656 Code Ho.30009 An-asbestos base finishing Cewerttfor use up to i000#F*Supplied-by;*16hns^ Manvllle in luo Lb.bags*''Coverage 19 sq.fti*t thkr per - bag 8*' So303 Cewent (or 7M) - Dow Stock Code Ko.200271 /' Austin 5G56 Code No*30010 An asbestos base finishing Cewent foP ltte ufi to iuuo#F*Supplied by Philip Carry Co*/ in loo Lb;bags** Coverage-19 Sqift*lV. thk* per bagk Also known aN Til CCkeni* ; `- -.v :-v-v ........ .!* -A ' A" MAOCtSiPaFi CHtCKCPQU^V THE POW CHEMICAL COMPANY. MIDLAND. MICH. INSULATION H5U-7 arro: *yV.v\ t NSULAT1ON BtNDRikS DATS y-10-50 REVISION DATE: 12 0-52 standards lNr203-jJ m IMb DOW 00136 **-* it i i ' ST-0000341 v-v;:y;^ri:fv;-: ** 'r - r->*. ;? . ASPHALT MASTIC CEMENTS Fof Weatherproof F. inish . * - .. ***. ;JVM t-f -- 13.; TherwoteT Supplied by Philip Carey Co.ln 6U1. \ 100)300 And 500 Lb.containers wel$hi * Dow Stock Code Ko.200263 10 Lbs.per gal.* Coverage 55 -sq.fti r < Austin 6658 Code No.30591 thk.wet,per 100 Lbs .4; 4. ;; 14* Instil kote Mow Stock Cods No* - Austin 665b Cod* No.30592 Supplied by Johns-Manvil14*\n 60il50 And 500 Lb.containers** Weight 10 Lbs* per gal. Coverage 55 aq.ft<4*'thk*r. wet,per 100 Lbs* ^ .;" ^jV^Insulwastlc * Dow Stock Code No.* * f Austin 5656 Code No.30590 Supplied by Arwatfohg Cork t!o.irt 60* 300 and 500 Lb.containers Weight *. 10 Lbs.per gal.Coverage 55 sq.ft* (4* . thk.wet,per 100 Lbs. . ESIVES CEMENTS V ; ;'/ 20.\No.340 C*ent Dow Stock Code No.200260 Austin 565b Code No.30013 For cewenting joints in Styhbroaii Jind. cork. Supplied by ArsstrongiCork Co.16 1 and 5 gal.cans. Weight 12* Lb*.per gal. coverage 30 sq.ft.per*gal*,trow* el appllcatlon.* 21* No.EC-921 Cewenb Dow Stock Code No. Austin 5658 Code No.30014 For resenting joints in tyrofo`aa../-! Supplied by Minnesota Mining A Mfg*Co., in i and 5 gal.cans.weight 8 Lbs*per gal.Coverage 20 sq*f t. i/, g*. thk.per gil, trowel application* *, v../-;' 22* Triwedge plastic Tile Cewent For Resenting joints ift Stjrrohia*. Supplied by Trlwedge Industries in ;i .. and 5 gal.cans.Weight g Lbs.per gal. - Dow Stock Code No*- Coverage 35 sq.ft* thk*> trowel .v. Austin 665b Code No.30015 application. :<' . . . 23**' Plastic Klastiguw Dow Stock Code No300114 .Austin 5656 Code No.30016 For applying hair feit An Seaiitig V laps of Weatherproof Felt*-,Supplied ,by Darrett In 10,00 and 500 Lb.con*.;tainers.weight 10 Lbs.per gal.covers age 100 sq.ft**/|6, thk.per 35-40 tbs. 24 No.299 Cork Waterproof Cesent For cesenting cork joints together. Coat only one face of adjoining.*:; surfaces. Acid And Alkali resistant, waterproof and quick setting.Fume * Dow Stock code No. lshed by Armstrong COfk Co.,Covers Austin 665b Code No.30033 age 35 sq.ft.Of Joint Areas per;gal. WATERPROOP FELT . For Weatherproof Finish .. ./)>, * * ' t. *.'.* *f 30** *_M_ I Armor Fe_lt Supplied by Johns-Manvllle, iii 65 Lb. rolls 32*wide x 40 ft.longitover*-: Age loo sq.fi.per roll.order white . ' * side out,rolls in one pieteifelts . Dow Stock Code No.200266 . only.Also known as *1)1 aok* White* TAusVnr 665b Code No.U0iU5 r " feltT --t--:.~v, ; fHE& * p' g1 APts,r.F. - THE DOW CHEMICAL COMPANY* MIDLAND. MICHm CHECKeo-.dudyvi APfBt - INSULATION SUNDRIES tfc v>- DATE 3-10*50 REVISION DATE: i2-0-*:' OOU OQT 37  1 W y ~ ,1 1............ 1"^. > '--'St p;1 .^I Uy< U.P.I/-I , i A. t ; n: - SUSCBlUnEOUS . ' * v^Vv-S-.:' ": ,> #> . 35. Band Ingested, Galvanised : Dow Stock Cota No.230205 Austin 5665 Code No.30003 For fastening lafg. piping in4 kqtilp- went insulation, sibe 25 *4* "4**t<D2u* thk.,galvanised,ih 100 Lb*r61Ie feqoal to 2300 ft. Use.Acre Steel- Co*br ,Ap-..proved equal.Fasten 41th Nesl4*' S4e^- 36. Banding,Steej,Blk.palnted t)ow Stock Code No.230201 Austin 5608 Code No.30006 Sane as above except not galvahiied ... and painted black.To be used whebe.lt* -wlll. be overlaid with insulating eta- went* or asphalt WAStlc for protection against corrosion.(Acne 8te*lC0or : -approved, equal) , fa7?\Cork brenulated Dow Stock Code No.200269 Austin 5668 Code No*34049 For filling' voids around cork .fitting And valve covers.ftegranulated Scrap eork supplied frow Dow stock In OOLfei bags.. Also supplied byArsstrong Cork Co.,their Size No*B/l4 *esh in 36 Lb*^ bags.* Weight 5 Lbs .per cui ft*. .. ^38jJFiller, Sean Cork Dow Stock Code No. Austin 5658 Code No*30143 fror filling and pointing dbric joints* Supplied by Armstrong Cork.Co.ini and 6 gal.cans. Weight 13*$ Lbs.per gale (An alternate aaterlal is asphalt wet* tie sited with cork dust) See lN*204i 39* Chalk Line Dow Stock Code No.10008 Austin 6658 Code No30863 For tying hair felt insuiatioht >.i:: Supplied in too ft.rolls*.: _ . . . k , ...yjf 40* knslln, 4 O*. For covering Insulation. 6rdef W- - '*. bleached. Furnished ih bolts Ahd.fbilft 36*` wide, in Varying lengths as re- qtlired.' : y .* : 41. Muslin,6 os. '/ i bow stock ITode No. * ..Austin 6658 Code No.3086? Nase as No.40* FurniAhediH bolts;And rolls 3k*.wide,in varying lengths as ? required*' . W-*c-^ ?.'.i . 42* NettlngiHex Mesh wire - Dow Stock Code 80.200264 Austin 5658 Code No.30870 Used AS a base for insulating bese'nti.. and/or Asphalt wastlc. OrderkO ga*i** hex wesh,^galvanized after weaving**.._ Furnished-480i wide x 160 ftiholiS.* Also known as poultry netting* . . 43* Paraffin wax Dow Stock Code* No. Austin 5656 Code No.30882 Known as White Crude Scale wax with', welting point of i264F*Fumished in. 100 Lb.net cartons.(Kala*Aeon Paraffin Co.) ' i..v;*^T** V . * .V. \ .-V*?- r?,V' - 4 :MADC: S.P.F.' Arro: T 5AH 3-10-60 , - * ' ,vV.r/-'v;. ^'"T'*T;' *cf i , or ' o THE DOW CHEMICAL COMPANY, MIDLAND, MICH. INSUUT10N BIINDIUES nCVISION DAT"E; DOW 00138 INSULATION . Standards IN-203-3 STOOD0343 MISCELLANEOUS continued 44. PcroU** fror ceaenting Styrofoaa td eqiiipiehV* * Halting point 125 VF*'`-Supplied by".* \ Standard Oil of Indiana in.100 Lb* bow StoekCode Ho. cartonstft56 pe.f*eoterage,60.Lbii / Austin*5658 Code Mo.30884 per iOO sq.ft.of surface coated. . 45* Paste* Cold water : Dow stock Code Ho.200262 Austin 5668 Code No.30876 46 Seals, Fastening (Clip*) ' Dow Stock Code Ho.011012 Austin-5658 Code No.30036 For pasting kuslin over lhsuia tl6?W. Also called "Dry Paste*ir Supplied by Jennlson Hardware-Co.ln lOO-Lb.bag*: under trade naae"fted Stove, Wheat past* ** ' . -For fastening steel banding. Use Xeae 'Steel Co.- open type Hobbit of approved equal.-Supplied in lots of 2*5 end 10 M pea.* -ry:. T . .. 47* Screws* Sheet'ketal .For.fastening 26 gaiSheet netai.- Die . - -else No.7 -t TA%RH>parker-Kalon or Dow Stock-Code No.10037 'approved-equal.-Supplied in botes of v Austin 5658 Code No40279 l* gross.- Use 7^j*, drill. ... - > *: ` 48 Silicate; Sodlua Dow Stock Code No*30020d Austin 5658 Code No.30899 Use-40 Baua*' type gallon druas.- Supplied ih 50 ... Skewers* wood Supplied by Arastfong Cork Co.t*Md available froa butcher-supplyeospart* Dow stock Code No. . lea) Sites in 1M pear 1 *. W v*;.r` Austin 6658 Code No.30690 *4*.* 4* Wt 6 fibs.per ft* X 30891 l*. * 5*4* Wt.6.5 tbs*- per M* " 30892 * 7" Wt.lO !iba*; per M* 6b. Btaples* Copper-clad Site i*l# 208 pea.p*r -Lb.Supplied Dow stock Code No.200258 In 100 tb.kegs.(Jennlson Hardware Co.) . Austin 5658 Code No.30897 51. Staples% Copper-clad Dow Stock Code No.200259 Austin 5658 Code No.30898 528 tyrofoaa* Granule ted Dow Stock Code No*Austin 5658 Code No.30905 53.' Tape, Masking Dow Stock Code No0J14Ui Austin 6658 Code No.30017 No.30918. Site i*. * 140 pea.per Lb.' ^-i.: Supplied In too tb.kegs (Jennlson .Hard* ware- Co.) r';..r .1*;*, *\V Manufactured by. Dow and stocked In'fio; 6-433 Bldg. Order Grind A type.- SUp* piled in 10 cu.ft.boxes weighing 22 tbs . ' :`: . v* **. For fastening sectional' SlyrofoAii in sulation. Site lai wide Supplled by Minnesota Mining A Ufg.Co.*. wetordry No280*< brand,, or by Industrial :Tape . Co.-,"i'eraacel No.77* brand*; MAOti'S-. IT* TTT~' THEvPpW CHEMICAL COMPANY, MIDLAND, MICH. ' \p,- `.AFT'D: 't/> U5 - "v INSULATION BUNDltifcS OAH 3-lO^DO revision oate: ia.B-8a nnL1 00139 iHKrr 4 of ft INSULATION STANDARDS . IN-203-4J 1 ~T--y;i..v * .1 . ^.^,.1 . *mmm w / * jiSCELfANEOUS continue . : &4."Tat) Asbestos ST0000344 'V . *V **V . .. .*" r! . - . tint Stock Cod* No.oaUlOi , Austin 0658 Cod* No.00910 309U Slz* l*. i 020*1 thk. Size i#i * .125* . thk. :> *r 55 Wire. Connftr-cltd. Ho.14 Ca.* Order sort annealed. Height l*?i;Lb?* ------- 2------ "-------------- 1---------------- - p*r 100 ft* Supplied, In ioo hb. folia Dot Stock Code Ho. Us* Copper-weld Steel co/ior. approved < .'Austin 5608 Code No.30940.-. equal. ` .*:, / .`>* 5^/ Hire. Copper-ftlad fro.12 Ca/ Order soft annealed/ W&ignt 1B3 ^ibs* per 100 ft/ Supplied - In 100 Lb.rblli. r Dow Stock Code Ho.* Us* Copper-weld Steel Co.or approved Austin 5658 Code No.90945 equal.. . -r..- *r ' . *. > 57. Wire. Iron No.12 Gt.Blk'. . Order soft Annealed. Weight 2.91 list, per 100 rt. Supplied in 100 Unrolls Dow Stock Code Ho.011009 . 0 ;*"/ Austin 5658 Code Ho.41152 ., * 58.* Wire,lrori,No.i6 Ga.Blk/ Order soft AnneAlM.' Weight 1*04 Lba. per 100 ft*. Supplied .in.ioO Lb/ rolls Dot Stock Code No.011804 .*.*, v : v.'sV >*... . ' Austin 5658 Code No.41151 59.- Wire.Iron,Ho.9 Ga.Blk.- Order soft annealed. weightU)8* . per 100 ft. Supplied In.iuo. Lb* rolls Dot Stock Code No.t)406l3 .... Austin 5658 Code No. 4U5G .' *" ' r.'Ai ; f,,.5 -i n .*. '/ 60*' Wire. Bare CoppertHo.9 Ca. Dot Stock Code No.20QB77 : : Austin 5658 Code No.3095l Order soft annealed/ Wei|fct jjgitfli ft* per pound.*- //' .;? VV : < y.: . . . t a ' ' * : * . , . * * _ > " f . 5 \ V. ,r- xaoticrS.P.F. THE,POW CHEW1CAL COMPANY, MIDUN^ 'MICH.:1: ^i^HHlYlujLLAAVfibiaNM^ %`h ' Arrp;J <3>/H iNitiiATlOH 'SUHD)RR^iES : - : tSiftAwbAAfeB" S:* DATt U-10^50 REVISION DATIi 12-9-52 DOW 00140 IN203-`5 r . sjobD0345 :;; ; :v; , k V. .> '.< . .v;-t ';> ' mmtm, mtHim* ocr *m adhesive taints - t" ? - - ; :. >-<."< \>.y*2 ';i; \ - msctumcvS ``v^. Herd Finish Cement ;.;j- ' ' : . ` ?''*> \ ' !v For use in indoor finish on flshged vsivOS irid.iill, eetd-ena voltes, silo B' end tsrgortsnd sit tlsnged unions end equipment. - v` :: . * FCRkULA; Hi*tyro ah#// consist of throw til -piriiof esbistoi ^ ; .* -- Sodium Siticste 4sbta tot. Cement c#*enf sna oris (I) port Forttsnd csment by volume.tkoto; Brick sorter cement msy 00 usod in ptseo of Fortlsnd short S Ho*tY : sotting mixture is desired), . .*>. |* * . ' : J 1 - .7 . For use in cementing BSX Begnesls ond simtlsr thiutitlhp. " oistorists to curved ond irregulsr hoist Surfsces prior to . tsstoning t/fh'*i*r or bonds, ..lv - FORWLA; This cOment ti mods by Sifting esbestoi Cement : fht- ; sodium siticste.JP dogroo Bourns', Snd mixing to tho tf#J/r#tf .; consistoncy . * >* F/#jt/c Bisstigum ......V;* .f >'*':*,W - -:* , 4 ostorproof ptsstic osphsit c##nt for specie! tfst.ta *:1 h#ir-/t/f spplicstton os s sopor terrier ond Sdheilels, further dots refer to Sundries. Covorsgo is JS LbSipot 106 r ' Sq.ft, per thk, ; Cork Ostorproof Cement Cork hesm Fitter . *. *. ' 4jph#/t fritfC* Ground Cork Joint Fijioh * ' r-:'- ; . . * '.A : "r >1,' ^ v .' A quick-setting cement tor cork joints, end rittsUni .ib , t - oelds snd oiksiios,;Covorsgo. tor joints is 3S sq,tt*por gsh, \ For further dots refer to Sundries, '-*;V" . 4 wsterproof msstie fitlSr .for-cork joints Ahd.triikii :;^i : is goners tty furnished oith cork purchssos, for further thtiflr* . motion rotor to Vj:; >|= . A pstorproot mssii'c fUlPr for totk jolhtS shli '&iket l'i . is mode Oy mixing ground cork, mesh she ho.B/ij*4wlth . fitient #aphj/f Bostic tosehf 'te A itiU plostic fcM/Vr whore the mtkturo oiil just trowel olthout bstitng,y.i-; i^ - i f if thls slio ground cork is not stsYiSblo, ................................................................ use grendistee coik sifted }hru oreini'ry^________________________________ _________________________ _____......................... ^ r'r', ihuet .~-T bATti T*IS#49 fei *m mi* \...... . THC DOW CHCMiCAL COMPANY, MIDLAND, MlCHlOANmm tNSULAfiO^I itA^biHos HMG? -mmWPOF' one AbHiSJft tmkT` uim ^<>rbi^Ro^BUCTIkeUBii^-`,:'i:':'-: i;-.? ; id /.*. DOW 00141 "2 *> - ikzuLAriNc.mm Nenutacturer I Trooe Node adhesive cenent selJecuA'r*sdfikifc - : *+ Teap. Coverage 1 Coverage Pounds I Deg.F. Sq. ft./IOD U>/l`\ Sq. ft./Bj./t* : * M J .. klHEMi lOOL CEVEHT 'r -.2;. 7 7; *77 FortyEight Insulations, l<4 , 48* 9 It Plehtr Ct. Super *86* Crty tfp.Co. 61 No.SO 8tft*i>-NiU 6-HMo.l laoo * teoo 1800 IBOO SO ; SO SO V 50 *b>'A 50 ,, v* .7 ` 85. 7. . . so 85 - SO ftr uj jn.tfirtcf application to hot mtst surfacestboth Urge A small ores*;, ; YtNts.f iff inp* and irregular stupes pointing joints end creck$,and for first; Coot work. .f- ''.VV V f/wj as ter is 1 is reuseole ehen not exposed to teaperatures over 1200* * "v ' BSX NAGNEStA CEVENT . ... i: Dom Creates! Co. JohnsNanviila * Philip Corey Nfg.Co* SSI Nagnesia 600 600 600 58 58 58 89 SO ii ^ *\ 60 60 For use in first coot work on Urge one taoll oreot; on yelves if ittings end iV.> irregulor shopes; pointing joints end crocks* It is not desirable os a finlshy - ceaent nor for use in hard finish cement. ;.= J*; ?.Vis ASBESTC)S CENENT V-.i JohnsNonvilie Sirastrong Cork Co* Philip Corey Nfg.Co. **.358 No.152 No.303 or IN 1000 1000 1000 19 ... 99 : 19 19 . , 19 >-*V: - 19. For use in general finishing on salt end forgo oroti. n herd finish c oment'-**';*? and tor first coot preceding hero finish caaent* ... > -iV^vi^r HAlHitPROOF ASPHALT PAST 1C Philip Corey Nfg.Co* Johns^Nonville VArastrong Cork Co. Theraotex Insulkote tnsulmastlt Sa. ft./tCD Lo/i * SaJtJaot/ i* Cals/Cent. .. 1! so , S.S vv- 5.10 d 50 > 5.5 5.15 6 50 5.0 v 5.80 8 50 For use In.Weatherproof Finish on.large end shell oreoa*; , . *77X . Note; These materials become damaged on freeeing andtoccordinglftinaU oe ftth*'" faded .both In amplication and storage.-------- l_ -------- : ^ ADHESIVE 141EHPH0OF CEVEH1 :' iv f'* Arastrong Cork Co* Ninn.Nining A Nfg.Co* Triaeeae Indus tries * *0i# ^ v - - No.tC-921 . Plastic TUO Cement Sq.1t/otl/ '/ft : 30 .85 ` 85 6*1$./Cent. 1. 8 5 *. :fSS v IAS " ..k for use in ceeenting Styrafoam Joints.end Styrofoaa end cork to hetaltcbncrete , ptsster end eood surfsees. Atv.7-8/-SJU~ M*OKt S.P.F*-- . -V)wi. bATti 7*/5*49 . - :-aic.Vti'V,-V.: THE DOW CHEMICAL COMPANY. MIDLAND. MICHIGAN general plant stahcards, INSULATING. UA THERPROOF AND ADHESIVE CENENT SELECTION TABLE DOW 00142 INSULATION. STANDARDS lN-64*f