Document 6bbqXbvdDb38yBbbDqjJBqgRR

FILE NAME Corning OC DATE 1963 June 20 DOC OC072 DOCUMENT DESCRIPTION Internal Memo - Methods for Evaluating Kaylo Dust ~ | COMPANY AS AS AS AS J CORRESPONDENCE rn et ne a, yr. 5. H. Boynton = New York 2 A. Lotz - Granville 1905 FOR EVALUATING KAYLO DUST Dato = June 20 1963 Mr. Mr. Mr. Mr. Mr. Mr. Mr. R. R. A. O. J. B. J. C. E. 5. 5. B. V. M. Amos J Berlin Davis L Newark Kevlin - New York ; Pfiefer D Toledo Rhoads - Berlin Smith C Toledo Westlake - Granville There are several Kaylo dust These can associated problems involved in the catego 01 be broken into three specific problems as follows . The amount of dust which occurs on the surface of the Baterial which becomes bothersome when Ww The dust becomes handling the product at airborne when the product is cut or fabricated The bealth bazard of the dust with respect to asbestosis bygienist The current OCF Test Method No. 07B is a measure of only the surfsurf dust and does not give any indication of the other two pattee ah anu: I have been able to problem areas From Mind tion m^/terial is ascertain the primary dust problem with any insula the dust that becomes airborne when the product is Yett5a fubricated This becomes a serious being som shop is problem 10 any location where a fabrica- tay set up and a large quantity dust is DO nfance area This is the being generated in a Jobiliuio West Virginia case in the Union Carbide Insulation Fabrication Chemicals Company ce Say 16 1963 I discussed the Shop which I visited on + Er Robert B. problem of dust and dust measurement with - Peele the industrial dubt Sepinger for They utilized a standard , collecting samples The procedure for . amount of dust is involved and measuring the which we do requires several pieces of small equipmest not have in our laboratory Based on the threshold limit values of the Governmental Governmental Industrial American Conference of tL the air where Hygienists the maximum allowable asbestos dust in people are working is 5 millions of eT of air Based on the asbestos particles per cutic foot Tae value of somewhere content of Kaylo this would be a limiting - between 20 and 30 millions of particles cubic of air of Kaylo dust above which a definite per foot to According the health hazard would exist Se shop with measurements made by Union Carbide in their fabrication the dust collection system in Your a to 18 MPPCP with operation there was approximately an average of 10 MPPCF using Kaylo However when ^ berhobestos is used under the same 200 KPHCF which circumstances the dust count exceeds x values means that Thermobertos is a definite health bazard Tbeso were given to us by Mr. Peele us Brand X rather than past Eazo but we know from by their actual experience that the material is Thermobestos T . T ; 111-002 102-001 EXHI1B 02-00I 1 1T 02-001 FOR IDENTIFICATION FOR A. ROLCOROLMCOMBE IDENTBIFCATION ECS3_NP NP ur. . H. Boynton -2- June 20 1963 answering the CCT Test Method shows Thermobestos to bave waa Tgat be expected as less dust Lian Kaylo Thermobestos has molded surface Moglo blocks are cut and bence will have area whereas residual saw dust on the o in my files all of the details of the surface Code follows in exact procedure that Union collecting and analyzing dust samples I am ris that their procedure is not too ' is also obvious that representative for the general case but the present OCF Test Method 07B is Dealt dust problem Do .. I recommend that as soon as Development Group begin the man power permits our Test Method - Gost problem and assignment of more completely evaluating the evolving a method which comes closer to , the facets of the dust problum evaluating all This method should be made 1 otter products such as GPL tc applicable BALIVY Bui Bui Bui Bui William A. Lotz Product Testing ALA CE SAAS STAT OR NI CISSEDW HORE