Document e71dB0zVBMYYvzBn3Y4L9YyN4

HYGEIAYINC. March 9, 1989 Richard B. Kirby, Esquire Richard B. Kirby, P.C. 20 Ashburton Place Boston, HA 02108 Subject: A. W. Chesterton Company; Testing of Packing and Gasket Materials HYGEIA INC. Project No. 5617 Ref: CMS5617/RICHARD Dear Mr. Kirby: As you had requested last week, I have prepared this preliminary report of our field sampling and analysis for airborne asbestos fiber during the removal of a valve at the A. W. Chesterton Company facility in Woburn, Massachusetts. I have outlined below the methods of air sampling and the results of filter, analyses by both phase contrast and analytical - transmission electron microscopy. Bulk analyses of the gasket and packing products are also reported. The methods of air sampling will be illustrated with 35 mn slides at the conference scheduled for next week. Both area and personal samples were collected using high volume pumps having volumetric flow rates in the range of 9.50 to 9.75 liters per minute. The tests were conducted on a damaged valve fitted to a Cyclotherm steam generator. The item tested was a Walworth gate (main stop) valve fitted to a 6-inch pipe flange. The valve packing Chesterton Style 1722 (size 3/8 inches) and the gasket is also an A. W. Chesterton product. The boiler was taken out of service in July, 1985 and the packing and gasket material had dried and hardened in place. As a consequence, the..packing and gasket material had to be removed using a cold chisel and hammer. Bulk analyses were performed on one sample each of the packing and gasket materials with the following result. Packing Material. HB2787B. fP-11). Asbestos (Chrysotile) 50%; Opaque Phases 45%; Vermiculite, 5%; Gypsum/Anhydrite Trace. 3Q3 Bear Hill Road Waltham. MA 02154 Telephone (617) 890-4999 Fax (617) 890-1058 '.chard B. Kirby, Esquire March 9, 1989 Page Two Gasket Material. HB2786B. fG-10). Asbestos (Chrysotile) 451; Cellulose Fiber 251; Opaque Phases 20%. The bulk samples were analyzed by polarized light microscopy (EPA Interim Method: Appendix A to Subpart F-40 CFR Part 762) at magnifications ranging from lOx to 400x. The estimated phase abundances are provided in weight percent and are accurate to within 10 to 15 percent of the amount reported. This method is sensitive to the detection of asbestos to less than one .percent by weight. Four filters were analyzed using phase contrast microscopy according to the NIOSH 7400 method. This is the procedure followed by OSHA for workplace compliance with the Permissible Exposure Limit standards. The results are as follows. A l background sample taken before any activity took place gave a fiber count of less than 0.01 fiber per cubic centimeter (f/cc). During gasket removal the fiber count was 0.01 f/cc. During packing removal the fiber count was less than'0.01 f/cc. Finally, a personal sample collected during the whole operation gave a fiber count of 0.01 f/cc. Mote that 0.01 f/cc is the limit of detection by this method. Accordingly, a value reported to be less than 0.01 f/cc means that no fibers were detected. This operation included pulling the gate valve away from the flange, and the removal of both packing and gasket materials using a cold chisel. During this "aggressive" removal, some dust was released into the air. The total elapsed time for this operation was about 20 minutes. Four air* samples were collected for analysis by analytical transmission electron microscopy (ATEM), with the following result. A background sample drawn over a period of 50 minutes gave an asbestos structure count of less than 0.005* structures per cc. That is, no asbestos fiber was found at the limit of detection. During packing removal, an asbestos count of 0.05 structures per cc was found. During gasket removal, the asbestos count was -0.005 structures per cc. These samples represent airborne fiber concentrations in the area adjacent*to the operation. A personal sample collected in the breathing zone of the operator gave a result of 0.035 structures per cc for the duration of the operation. Richard B. Kirby, Esquire March 9, 1989 Page Three. By way of explanation, we provide the following comr.ents. The term "structures per cubic centimeter" includes individual fibers, fiber bundles, clusters and matrices.. Referring to the photographs, we see that the majority of asbestos-containing artifacts found were matrices. Very few single unattached asbestos fibers were found on any of the filters. We were unable to obtain selected area electron diffractie^ f^AED) patterns on the fibers because they were coated with- resin, a finding that may have medical consequences. Fiber idteTTtTf\cation was made on the basis of morphology and chemistry. The short duration of the dismantling operation made it necessary to collect the personal samples at a higher volumetric flow rate than is normally used. Also, a far greater number of TEM grids had to be examined in order to attain the detection limit of 0.005 structures per cc. The computer printout attached provides individual measurements of the asbestos fiber matrices.^ The photographs, we believe, are a good representation of the structures observed (keeping in mind that there were very few of them). These filter samples were analyzed following the U. S. ERA . AHERA protocol which includes only those asbestos fibers having an aspect ratio of 5 or greater and, in addition, a minimum length of 9.5 '^nicroreters. At this points I would suggest that the reviewers of this work examine the individual asbestos fiber dimension data given in the computer printout. Yours sincerely, Charles M. Spponer, Ph.D. Certified Industrial Hygienist Principal Consultant CMS/lcr Enc. > I HYGELUIM Report: Date: 03/06/89 Page 1 Asbestos Analysis by Transmission Electron Microscopy Client Name: Richard Kirby Client Sample I.D.: 01 Sample Location: Boiler Room Background HYGEIA Project .5617 HYGEIA Batch 88 Nov 01 HYGEIA ID HT88-3279 w****************************************'**'*****'********************** DATA SUMMARY Sample Volume (liters): 480.0 Sample Collected by: C. Spooner Filter Type: Millipore TEM Analyst: w. cranton Number of Structures: 1 Grid Openings: 22 Date of Collection: 11/23/88 Filter Diameter: 25 mm. Date of Analysis: 03/03/89 Grid Opening Area (mm2): Total Grid Area Analyzed (mm2): 0.00718*9 0.153158 a*******'******-*'***'**************'***'***'***'*#**'#*'********'*****'**'**'*'**'*** SUMMARY OF ANALYSIS Total Structure Count (s/cc) Total Structure Count (s/mra2J Asbestos Structure Count (s/cc)* Asbestos Structure Count (s/mm2)* Asbestos Structure Mass (ng/re3)* Asbestos Structure Concentration ^s/cc)*.............................. for all structure* greater than. 5 ^microns in length with an aspect ratio of 5.1 or greater. Analytical Sensitivity (s/cc) ... ............................................. 0.005 6.323 `Includes Ambiguous Structures Ref: TEM/Forml ; 303 Bear HOI Road . Waltham. MA 02154 Teler^ione (617) 89CW999 Fax (617) 890-1058 Report Date: 03/06/89 Page 2 Asbestos Analysis by Transmission Electron Microscopy Client Name: Richard Kirby Client Sample I.D.: 01 Sample Location: Boiler Room Background HYGEIA Project 15617 HYGEIA Batch 88 Nov 01 HYGEIA ID HT88-3279 STRUCTURE LISTING ---------- Microns --------No Length Width Thkness Ident Form Mass Aspect EDAX (Picogm) Ratio SAED MG SI CA FE NA Grid f 1: Grid #2: NO Structures Encountered No Structures Encountered Grid #3: NO Structures Encountered Grid #4: NO Structures Encountered . .Grid S 5: 1 1 653 0 127 0.000 Cellu. Fiber 2.10E-2 Grid #6 through Grid S22: No. Structures Encountered 13 I HYGEIA?IN( >< Report Date: 03/06/89 Page 1 Asbestos Analysis by Transmission Electron Microscopy Client Name: Richard Kirby Client Sample I.D.: 03 Sample Location: Gasket Removal HYGEIA Project #5617 HYGEIA Batch 88 Nov 01 HYGEIA ID HT88-3280 A*******************-******'***********'*******'***'**********'******'******* DATA SUMMARY Sample Volume (liters): 80.8 Sample Collected by: C. Spooner Filter Type: Millipore TEM Analyst: M. O'Halloran Number of Structures: 17 Grid Openings: 135 Date of Collection: 11/23/88 Filter Diameter: 25 mm. Date of Analysis: 03/01/89 Grid Opening Area (mm2): Total Grid Analyzed (mm2): 0.007189 0.970515 A************************'*************'****#**'************'***'********.* SUMMARY OF ANALYSIS Total Structure Count (s/cc)................................................................... Total Structure Count (s/mm2) .................................................................. 0.083 17.517 Asbestos Structure Count (s/cc)* ....................................................... Asbestos Structure Count (s/mm2)*....................................................... Asbestos Structure Mass (ng/m2)*........................................................ 0.005 1.03'.' 0.*sl Asbestos Structure Concentration (s/cc)*........................................ for all structures greater than 5 microns in length with an aspect ratio of 5.1 or greater. ND Analytical Sensitivity (s/cc) ....................................................................... 0.005 *Includes Ambiguous Structures Ref: TEM/Forml 303 Bear Hill Road Waltham. MA 02154 Telephone <617) 890-4999 Fax (617) 890*1058 Report Date: 03/0C/89 Page Asbestos Analysis by Transmission Electron Microscopy Client Name: Richard Kirby Client Sample I.D.: 03 Sample Location: Gasket Removal HYGEIA Project 15617 HYGEIA Batch 88 Nov 01 HYGEIA ID HT88-3280 ***t*4*******44******4**** ******************************* STRUCTURE LISTING --------- Microns-----------No Length Width Thkness Ident Form Mass Aspect EDAX (Picogm) Ratio SAED MG SI CA FE NA Grid #1 No Structures Encountered Grid *2: No Structures Encountered Grid #>: 1 2.263 0.151 0.000 Cellu Fiber 4.04E-2 Grid *4 through Grid *14: No Structures Encountered Grid *15: 2 2.369 0.118 0.000 Cellu Fiber 2.61E-2 Grid *16: No Structures Encountered Grid *17: 3 0.8SS 0.0S9 0.000 NonAsb Fiber 4.92E-3 Grid *18 through Grid *22: No Structures Encountered Grid *23: 4 2.665 0.059 0.000 Cellu Fiber 7.34E-3 Grid *24: Grid *25: No Structures Encountered % 0.000 NonAsb Fiber 2.89E-1 Grid *26 through Grid *28: No Structures Encountered 15 20 15 45 14 None Non Asbestos None Non Asbestos None Non Asbestos None Non Asbestos Non Asbestos Microns--------l.'o Length width Thk.ness Ident Forr. Page 3 Mass Aspect EDAX (Picogm) Ratio SAED MG S3 CA FE SA Grid # 29: 6 1.481 0.05S 0.000 Unknwn Fiber 8.20E-3 25 Grid #30: 7 1.895 0.059 8 2.665 0.237 Grid #31: 9 5.330 0.592 0.000 0.000 0.000 NonAsb Fiber Cellu Fiber Cellu Fiber 1.05E-2 1.17E-1 1.47E00 32 11 9 Grid #32: No Structures Encountered Grid #33: 10 5.390 0.118 0.000 Cellu Fiber 5.94E-2 46 Grid #34 through Grid #38: No Structures Encountered Grid #39: 11 3.850 0.178 0.000 NonAsb Fiber 1.92E-1 22 Grid #40: No Structures Encountered Grid #41: 12 1.777 0.118 0.000 NonAsb Fiber 3.94E-2 15 Grid =42 through Grid ?67: No" Structures Encountered Grid #68: 13 1.836 0.118 0.000 NonAsb Fiber 4.07E-2 15 Grid *69 through Grid 474: No Structures Encountered Grid 4 715: 14 3.317 0.118 0.000 NonAsb Fiber 7.35E-2 28 Grid =76 through Grid ?100: No Structures Encountered Grid 4ioi: 15 3.672 0.592' 0.000 NonAsb i/2Fibr 2.03E00 > 6 None Non Asbestos None Non Asbestos * m Non Asbestos Non Asbestos Non Asbestos Non Asbestos --------- Microns --------No Length Width Thkness Ident Form Page 4 Mass Aspect EDAX (P.icogm) Ratio SAED MG SI CA FE NA Grid #102: 16 4.738 0.118 0.059 Chryso Bundle 8.44E-2 40 Grid #103: No Structures Encountered Grid #104 No Structures Encountered Grid #105: 17 3.554 0.592 0.000 NonAsb Fiber 1.97E00 6 Grid #106 through Grid #135: No Structures Encountered Ref: TEM/Form2 Faint 5 10 0 1 0 Non Asbestos > F ^u> THE HARTFORD A.W. CnVCTERTQN 30 INDUSTRIAL WAY WOBURN, MA 01801 LudS CGTfiuL ucrAR'Mffn ENVIRONMENTAL SCIENCES UNIT >, AN EVAfiOATION OF SIMULATED FIELD USE OF VARIOUS ASBESTOS-CONTAINING PACKING MATERIALS STEPHEN H. CAMPBELL,CSP, CIH MAY II, 1983 V * : I** | THE HARTFORD f TRODUCTION *.v:. Cr;ZT~.RTC'.S 3G INDUSTRIAL Wax WOBURN, MA 01801 On Hay 11, 1983 a aeries of environmental tests were made at the A.W. Chesterton Research Facility at 30 Industrial Way, Woburn, MA 01801. The purpose of the evaluation was to monitor a simulation of the cutting, installation, and removal of asbestos-containing packing materials. Packings for both valves and pumps were utilised during the simulation. The study was requested by David Lasnier, General Manager, A.W. Chesterton, and the evaluation were conducted by Stephen W. Campbell, Certified Industrial Hygienist, Hartford Insurance Group, Boston. Special thanks to Jack Santolucito and Bob Leduc for their time and courtesy. This report represents the conclusions, recomaendations, test methods and test mlts of the data obtained on May 11, 1983. CONCLUSIONS 1. Airborne levels of asbestos measured during the simulation were all veil below those limits generally regarded as safe. The sample that was obtained for the entire monitoring period of all six types of packing indicates levels of only 0.03 fibers per cc of asbestos. OSHA's legal limit for an 8-hour exposure to asbestos is 2.0 fibers per cc. 2. The simulation is deemed appropriate for the monitoring of the cutting and installation of asbestos containing packing materials. It should be noted that the removal of these packings from pumps and valves in field use may well pose a somewhat higher risk than that monitored. ' OR*-' SKf 73S O THE HARTFORD A.W- ' -r.STS-tfTrAJ 30 INDUSTRIAL Wax' WOBURN, MA 01801 10SS C0NTR0* OEFAhiMENT 1 ENVIRONMENTAL SCIENCES UNIT ( The reason for Che increased risk is associated with Che deteriorated condition of Che packings often experienced under normal wear and tear. The packing removed during the simulation vaa relatively new and intact; thus, the likelihood of generating airborne fibers of asbestos was substantially reduced. RECOMMENDATIONS Normal field operations involving the removal, cutting and installation of asbestos packing typically takes between 10-30 minutes. The variability is reportedly largely dependent upon the difficulty in removing the worn asbestos containing packing from valves or pumps. For test data to be truly meaningful, it is necessary to approximate field conditions as closely as possible. What is necessary, then is to obtain samples during removal of asbestos containing packing that has been "abused" under actual conditions of use. As mentioned previously, the evaluation serves as a useful measure of employee exposure to asbestos during the cutting and installation of asbestos containing packings. Those values listed in the test results section of this report may well understate the actual amount of asbestos experienced by a field person during the removal of worn packing from valves and pumps. Accordingly, the following reconmendation is being submitted. 83-A In order to approximate more closely a real field situation, monitoring of asbestos exposure to the removal of worn packing materials should be simulated. If it is possible to provide for several types of packing materials to be tested at one time. The Hartford's Loss Control Department would very much like to conduct this type of testing again. V OopBM SBC 735 0 I jjL THE HARTFORD TEST METHODS A.' 30 INDUSTRIAL WAY WOBURN, HA 0180I LOSS CONTROL CcrARTVENT ENVIRONMENTAL SCIENCES UNIT The purpose of Che study was Co approximate employee exposure Co asbestos during typical field operations for the removal, cutting and installation of various packing materials. A member of A.W. Chesterton's research staff at the Woburn facility assisted by simulating these operations utilizing 3 types of valve packings and 3 types of pump packings. Each of these packing materials was cut to length, installed in the appropriate equipment, momentarily brought up to normal operating conditions, and then removed. The total time for this procedure involved approximately 10-18 minutes. One sample was taken during the entire procedure involving all 6 types of packing materials. In addition another sample was collected for each of the individual packing materials to measure the exposure created by that one substance. The entire sampling period involved 97 minutes comprised of 6 separate sampling eriods ranging from 14-18 minutes each. All samples were collected on millipore type AA0.8 micron cellulose acetate filters mounted in 3 piece open faced cassettes attached to the lapel of the operator. Air was drawn through these filters with the use of Mine Safety Appliance Model G Vacuum Pumps set at flow rates approximating 2.0 litres per minute. Analysis of samples was conducted by phase contrast microscopy. This technique measures all fibrous material present on the filter and may tend to overstate the actual presence of asbestos material. Periodic calibration of all equipment and analysis of all saaq>les takes place at The Hartford's AIHA Accredited Laboratory in Hartford, Connecticut. THEHARTTORD (: w. c^tertc:: 30 INDUSTRIAL WAV WOBURN, HA 01801 1CS3 CjNTmCL DEPARTMENT ENVIRONMENTAL SCIENCES UNIT --------------------------------------------- ----------------------------------------------- TEST RESULTS All samples were collected oa Jack Santolucito as he simulated the cutting, installation and removal of asbestos-containing packing. Sample #30 remained on his left lapel for the entire sampling period, whereas samples #31-37 were changed with each style of packing. The results obtained are all quite low and indicate exposures well below those levels generally regarded as safe. SAMPLE # 30 TOTAL TIME (HRS:MZN) 1:37 TOTAL VOLUME(L) 189 TOTAL FIBERS 6,000 FIBERS/cc 0.03 SmE PACKING All listed below 31 32 , 33 34 0:16 0:15 0:14 0:14 32 43,000 l 0.09 Valve 1000 30 4 3,000 4 0.09 Valve 1500 m 29 43,000 L 0.09 Valve 5010 28 7,000 0.25 Pump 1722 Whitelon 35 0:18 36 3,000 0.08 Pump 320 Blueon* 36 0:18 36 3,000 0.08 Pump 330 ,OSHA's 8-hour legal limit ACGIU TLV - Chrysotile ACCIH TLV - Amosite ACG1H TLV - Crocidolite 2.0 2.0 0.5 0.2 * Most likely contains crocidolite, whereas all others most likely contain chrysotile asbestos. lxKmi.'S ~ K >>350 r-- IjEsLi THE HARTFORD a.w. chS-e.ktc:; 30 INDUSTRIAL WAY WOBURN, HA 01801 | _____ _ LOSS Curainut Uj;iHMNT ENVIRONMENTAL SCIENCES UNIT Hopefully this report ha* been of assistance to you in your attempt to assess the exposure to airborne asbestos contamination. Respectfully submitted, Stephen H. Campbell, CSP, CIH Certified Industrial Hygienist SWC/ea b, V.t /- f ^ VV v ' Jt' ./ November 7, 1983 Mr. David Lasnler, General Manager A.W. Chesterton 9 Forbes Street Woburn, MA 01801 THE HARTFORD Boston Regional Office Two Center Plaza Boston. Massachusetts 02108 Telephone: (617) 726-7400 RE: Loss Control Service A-690 Dear Dave: This letter will confirm my visit with Bob LeDuc at Chesterton's Woburn Research Plant on August 30, 1983. As In the past, purpose of the visit was to collect asbestos samples during the ^ removal of packing material from pumps operating under field conditions. The need for this sampling vas documented during previous monitoring when It was decided that to approximate actual operating conditions, sampling would be necessary during removal of packing materials. This latest attempt at determining airborne concentrations of asbestos fiber involved removal of "product A" that had run for approximately 100 hours during a field test situation. As can be seen from the results listed below, no measurable amount of fiber was detected during the samples, and all results indicate exposure concentrations of less than 0.1 fibers per cc of air. Jack Santolucito and the area to his left (approximately 6" to the left side of the shaft) at the height of the pump were monitored on 8/30/83 during removal of 5 pieces of "product A" packing that had rim for approximately 100 hours In a field simulated test. The pump was repacked with "product B". Name/Area # Total Time Volume (L) Fibers Fibers/cc (minutes) Jack Santolucito Area to left 1 2 15 15 30 < 3,000 < 0.1 30 < 3,000 < 0.1 OSHA's permissible exposure limit OSHA's administrative action level 2.0 0.1 ^ 'parts are baaed upon observations or information available at the ton# of surveys which may not discover at hazards. Wa cannot warrant *ry. health or compliance with any ate or regulation. Wa can only assist you in Milling your responsibility in controlling accidents. fane Ut-ITH Loaa Control Department Hartford Hr# Insurance Company end ks AfflMao Hartford Plaza. Hartford, Connecticut 06119 Mr. David Lasnler ^- 4*. iv..-veaber 7, 1963 The significance of this test is simply that concentrations of asbestos fiber, if present at all, exist at levels below OSHA's administrative action point, and therefore do not constitute a significant threat to health. Future measure ments will necessarily need to be made utilizing other materials and under different conditions, and these results will be reported later. Hopefully this latest attempt has been of assistance to you in your effort to evaluate exposure to airborne asbestos fiber. Stephen W. Campbell,C.S.P., C.I.H. Certified Industrial Hygienist cc: Horst Berhoth, Plant Engineer A.W. Chesterton 9 Forbes Street Woburn, HA 01801 Gregory Smith, Personnel Manager A.W. Chesterton 9 Forbes Street Woburn, MA 01801 Frank Boccelli, Insurance Manager A.W. Chesterton Middlesex Industrial Park Stoneham, MA 02180 Edward Bonaccorso, Assistant Vice President Corroon and Black 99 High Street Boston, MA 02110 SWC:mhs * O * M f Hi. 7 3SO *i Jf-r, V * THE HARTFORD V 6^i-h A. W. :.L .'r COMMERCE WAY WOBURN, MA loss control department 11 ENVIRONMENTAL SCIENCES UNIT EVALUATION OF AIRBORNE ASBESTOS DURING CUTTING, REMOVAL, AND PACKING OF PUMPS STEPHEN V. CAMPBELL, CSP, CIH JUNE 23, 1983 JUNE 28, 1983 * C-V Sfrf *3S> C THE HARTFORD V COMMERCE WAY WOBURN, MA LOSS CONir.OL DEAW'.Mrir ENVIRONMENTAL SCIENCES UNIT INTRODUCTION As a result of a previous study and recommendations made at that time, another evaluation of the simulated use of asbestos containing packing materials was conducted at the A. W. Chesterton plant in Woburn, MA. This latest study involved two sets of samples collected on June 23, 1983 and June 28, 1983. The first set involved strictly cutting of four types of asbestos containing packing material for a total of 65 pieces during a period lasting approximately one hour. The second sampling occurred several days later when a pump containing asbestos packing was dismantled, the packing removed, new packing cut, and installed. This procedure lasted only 17 minutes. The survey was conducted by Stephen W. Campbell, Certified Industrial Hygienist, The Hartford Insurance Group, Boston, MA. Special thanks to Jack Santoluccito, Bob LeDuc, and Victor DiDonato r their time and courtesy. This report represents the conclusions, discussion of findings, test methods and teat results of the data obtained on June 23 and 28, 1983. CONCLUSIONS All samples collected during the cutting, removal, and repacking of asbestos containing packing materials demonstrate airborne levels of fiber well below those levels generally regarded as safe. In fact, levels were so low that no measurable amount of fiber was able to be detected during the sampling period. To provide an even more realistic assessment of this simulated exposure, additional tests should be performed during the removal of asbestos containing packing materials from pumps that have run for an extended period of time. Necessarily, such an approach will be ongoing by its nature, and will undoubtedly encompass a period involving several months DISCUSSION OF FINDINGS Testing conducted on June 23, 1983 involved essentially a blind test. Simply this means that the material cut was known only to the operator and the tester by the code letters A, B, C, and D. In an attempt to obtain as long a sample as possible, and to approximate the absolute "worst case condition", the operator cut packing rings from each of these materials for periods of approximately 14-15 minutes. Depending upon the type of material, the amount available, and the ease of use, between 13-20 rings were cut from each of the unknown samples. On June 28, 1983 a very brief sampling period was chosen since the operator merely had to remove the packing from a pump that had been run for a period of 14 hours. The removal procedure lasted approximately 10 minutes, following which the operator cut new .ngs and installed them back into the pump again. This procedure approximates a more realistic assessment of the typical conditions faced in the field. Since the pump was only run for a period of 14 hours, the deterioration of the gaskets was not significant. Consequently, additional testing in the future will hopefully measure exposures found under more severe conditions of use. TEST METHODS As in the past asbestos samples were collected by placing a three piece open face cassette onto the lapel of the operator during the processes described. Samples were collected in the three piece open face cassette on a millipore type AA, pore site 0.8 micron, 37 millimeter filter. Air was drawn through this apparatus with the use of a Mine Safety Appliance Model G Vacuum Pump operating at a flow rate of 2.0 liters per inute for the times indicated in the test results section. ( f O s' f t 7 3!- 0 Jf Ssiid THE HARTFORD A. V.. Ci.ri "F.nTOK COMMERCE WAY WOBURN, MA LOSS COii: f:C' DEPARTMENT ENVIRONMENTAL SCIENCES UNIT In one instance the sampler was placed in an area extremely close to the stuffing box of the pump during the removal of asbestos containing packing material. Analysis of all samples and the periodic calibration of the vacuum pumps takes place at The Hartford's AIHA Accredited Laboratory in Hartford, Connecticut. Analysis involved the counting of fibers via a phase contrast microscopy technique. TEST RESULTS - ASBESTOS All samples were collected on Jack Santoluccito during cutting of 5/16 inch or 10mm packing while cutting on a 50mm shaft on June 23, 1983. To simulate worst case conditions numerous cuts of each type of packing were made and the entire procedure lasted 57 minutes and involved 65 cuts of various packing. SAMPLE * TYPE PACKING TOTAL TIME (HRS:MIN) VOLUME(L) FIBERS FIBERS/CC TOTAL CUTS 1 A, B, C A D 0:53 106 3000 40.03 65 2 A 0:15 30 ^3000 40.10 20 3 B 0:1A 28 43000 0.11 13 A C 0:14 28 Oooo 4.0.11 1A 5 D 0:14 28 43000 4o.ii 18 OSHA - 8 Hour Time-Weighted Average Permissible Exposure Limit 2.0 Fibers/cc The next series of samples were taken during the removal of A. W. Chesterton Model 2022 3/8 inch packing with a model 1722 end ring from a pump that had run for 1A hours, following removal of the six rings and the end ring another series of rings were cut and the pump was again packed for a future test. t c a v SB 7 35 0 This activity took place on June 28, 1983 and the entire procedure lasted 17 minutes. Samples were taken on Jack Santoluccito and to the left side of the drive end of the pump stuffing box. LOCATION SAMPLE TOTAL TIME (HRS:MIN) VOLUME(L) FIBERS FIBERS/CC Jack 6 0:17 34 43000 ^0.09 Area 7 0:17 34 43000 0.09 Hopefully this information has been of assistance to you in your attempt to evaluate field exposures to asbestos containing packing material. Respectfully submitted, Stephen W. Campbell, CSP, CIH Certified Industrial Hygienist SUC/ea t .3 TCIWHC*< Me. 660i oji 0*e boa \a, f S>*cuw N 'TV r*. (3i i* orosoe LABCFA3CRY A.'Al'rTrR Client.: a.W. CLECTt-PTa.' CD. Task Number: 86101612 Location: WOBURN PLANT PO Numoer: 49717 PSQ.05220 fide* count NICSH 239 Sample ID Lab ID VCL (CL1) FIB/FILTER FIBERS/C*> Job Numoet: G602S Date Sampled: 08-OCT-1986 W78 A-3980-A D24280 110,940 W79 A-3976-A D24281 110,720 W80 A-3989-A D24282 NA <7000 <7000 <7000 <0.06 <0.06 NA Field sampling was not performed by GALSCN. GALSCN presents analytical results based on sanpling data provided by the Clients. (<) - Less Than (>) - Greacer Than NA - Not Applicable HD - Not detectable - Not specified Method(s): NIOSH 239 Footnotes: Submitted by: l( - Approved by: Date: 31-OCT-1986 y fage 1 of 1 w*. %r ts trilh at waH. DATE: May 4, 1987 TO FRO f.' SUBJECT Linda Loreth L.B. Maglin ASBESTOS TESTING ON PACKING PRODUCTS Q A. W. Chesterton Co. 0 Chesterton International, Inc. Summary As you are aware, on June 20, 1986 The Occupational Health & Safety Administration (OSHA) published its final rule on Occupational Exposure to Asbestos. This revised standard dropped the Permissible Exposure Limit (PEL) for 8-hour employee exposure for asbestos, tremilite, anthrophyllite, and actinolite to a level of 0.2 fiber/cc, (with 0.1 fiber/cc as the new action limit). This required product retesting on our part for our products, because of the disclaimer we make on our Material Safety Data Sheets. The purpose of this evaluation was to monitor the cutting, installation, and removal of asbestos containing packing materials. - Discussion 1. All the samples tested were well below the OSHA PEL. The samples obtained for 9 styles of packing indicates levels of <0.04-<0.06 fibers/cc of asbestos. 2. It should be noted that these tests were done under ideal conditions, with packing being installed according to Chesterton procedures, (packing done by Steve Flanagan), which may not be the case in the field. Also, the material which was used was relatively new and intact; thus, the likelihood of generating airborne fibers of asbestos was low. 3. As the results clearly show, our disclaimer is a true statement as far as our testing demonstrates. Test Conditions 1. Samples were'tested by NIOSH Method #239, using Millipore MAWP037A0, pore size 0.8u, with DuPont Alpha-1 pumps set at flow rates of - 1850 cc/min or Niosh 7400, using Millipore MRWP025AC, pore size 1.2u using same pumps. 2. Samples were taken for 60 min., and approximately 1-6 installations and removals were done in that time for each style. 3. Engineering Samples were run approximately 6" away from the valve being packed. Personnel samples were run in conjunction with the engineering samples. *<* F.L. MIDDLESEX INDUSTRIAL PARK - ROUTE 93. STONEHAM. MASS. 02180 U & A 1Meas confine each letter to one subject) A w C <CSTt70* COMP/kNV 4. Lacn packing material was cut to length, installed in tne appropriate equipment, brought up to normal operating conditions, and then removed. 5. Analysis of samples was done by Galson Technical Services, Inc. by phase contrast microscopy. Test Results NIOSH No. Sample No. Style Pkinq Personnel/ Fibers/ Enaineerinq cc Sampling Int/ Time Remov 239 T-l 239 T-2 239 T-3 239 T-4 239 T-5 239 T-6 239 T-7 239 T-8 1715 1715 322 322 320 320 1000 1000 P <0.06 60 min. 1 E <0.06 60 min. 1 P <0.06 60 min. 1 E <0.06 60 min. 1 P <0.06 60 min. 3 E <0.06 60 min. 3 P <0.06 60 min. 3 E <0.06 60 min. 3 7400 7400 7400 7400 7400 7400 7400 7400 7400 T-12 T-l 3 T-l 4 T-15 T-17 T-18 T-19 T-20 T-21 1500 1500 326 326 Ambient Air 5010 5010 330 330 P E P E E P E P E <0.04 <0.18* <0.04 <0.04 <0.03 <0.04 <0.04 <0.04 <0.04 60 min. 15 min. 60 min. 60 min. 90 min. 60 min. 60 min. 60 min. 60 min. 6 2 5 5 -; 7 7 6 6 OSHA PEL (Legal Limit) 0.2 ACGIH (American Conference of Governmental Industrial Hygienists Chrysolite Crocidolite Amosite 2 0.2 0.5 * Due to low sampling time. References Threshold Limit Values and Biological Exposure Indices for 1986-1987 American Conference of Governmental Industrial Hygienists Federal Register Vol. 51, No. 119, Friday, June 20, 1986 22612-22790 NIOSH MANUAL of Analytical Methods, Method 7400, Issued 2/15/84, Revised 5/15/85 Chesterton Environmental Log #1, Winchester 1,2 ^11070)0. >U* LBM/das Lawrence B. Magiin, CSM ec A.W. Chesterton,.J. Gaucher, C. Howe G. Moreno, X. O'Brien, G. Smith 0ATC November 10, 1986 TO Richxe Dyment FR0V L.B. Magiin SUfcJtCT STYLE #1500 TESTING Ref. No.2179 csassissnssi. OVM WO YU or WOML0 WIO lUVICC 0 A. W. Chesterton Co. L_ Chesterton International. Inc Attached are the results of two samples taken on October 8, 1986. This testing is the ongoing study of our asbestos products, to make sure no respirable fiber is generated when the material is cut according to directions. Testing was done using personnel and engineering samples. Results were below the current OSHA Limit of 0.2 fiber/cc. As we discussed, all products listed on our MSDS's must be tested. MSDS# Styles Involved Done 1003 1011 1012 1016 1017 1018 1020 1022 1023 1029 1032 1033 1043 1044 1050 Style 64 210,211,225,235 260,270,281,285 240,250,290 315,1715 Style 320 322,1722,2011,2022 Style 326 330,1730 Style 364-T 600S,600HO 1000,1000c Style 1500 Style 2500 Style 5010 Asbestos Gasket for Flat Glass X Only one style in each MSDS must be done. Please relay the test results to J. Williamson and call if you have any questions in this matter. 0 .!_ Lawrence Bk^Maglin, CSM Sr. Environmental, Health 6 das Safety CotWinator Attachment cc John Gaucher Dick Hoyle L. Loreth Greg Smith 'MIDDLESEX INDUSTRIAL PARK - ROUTE 93. STONEHAM. MASS. 03180 USA {Please confine each letter to one suhiect! I would suggest that permanent enclosures be constructed and interlocked so that when the machine is serviced, it will not operate and consequently graphite dust will not be air-borne in the room. If we may be of further assistance to you in this area, please do not hesitate to contact me through Mr. Ken King of our Lexington Office. r r* HLC/nw . cc: Mr. Myron Markell ROBERT L. C0K30Y Industrial Hygienis Loss Prevention Dep I HYGEIA? INC. 1 Report Date: 03/06/89 Page 1 Asbestos Analysis by Transmission Electron Microscopy Client Name: Richard Kirby Client Sample I.D.: 05 Sample Location: Packing Removal HYGEIA Project 15617 HYGEIA Batch 88 Nov 01 HYGEIA ID HT88-32S1 ************************************************************'***'** DATA SUMMARY Sample Volume (liters): 108.1 Sample Collected by: C. Spooner Filter Type: Millipore TEM Analyst: W. Cranton Number of Structures: 19 Grid Openings: 99 Date of Collection: 11/23/88 Filter Diameter: 25 mm. Date of Analysis: 03/02/89 Grid Opening Area (mm2): Total Grid Area Analyzed (am2): 0.007189 0.711711 SUMMARY OF ANALYSIS Total Structure Count (s/cc)................................................................. Total Structure Count (s/mn2) .................................................. 0.095 26.696 Asbestos Structure Count (s/cc)* ....................................................... Asbestos Structure Count (s/mm2)* ....................................................... Asbestos Structure Mass (ng/m2)* ....................................................... 0.050 '14.051 25.042 Asbestos Structure Concentration (s/cc)*........................................ . for all structures greater than 5 microns in length vith''an aspect ratio of 5*1 or greater. 0.005 Analytical Sensitivity (s/cc) ...................................................................... 0.005 Includes Ambiguous Structures Ref: TEM/Forml 303 Bear Hill Road Waltham ua /A. tfun. oon C- uon *nco Repcr Date: 03/06/89 Page Asbestos Analysis by Transmission Electron Microscopy Client Name: Richard Kirby Client Sample I.D.: 05 Sample Location: Packing Removal HYGE1A Project #5617 HYGEIA Batch 88 Nov 01 HYGEIA ID HT88-3281 STRUCTURE LISTING ----- *- Microns---------No Length width Thkness Ident Form Mass Aspect EDAX (Picogn) Ratio SAED MG SI CA FE Nr. Grid #1 through Grid #6: No Structures Encountered Grid #7: 1 6.358 0.636 0.064 Amfcigu Clump 5.171-1 Grid #8. through Grid #16: No Structures Encountered Grid #17: 3 1.006 0.084 0.000 NonAsb Fiber 1.12E-2 Grid #18: No Structures Encountered Grid #19: 4 9.921 5.669 0.142 Unknwn Matrix 1.60E01 Grid #20 through Grid #23: No Structures Encountered Grid #24 : 5 3.1S5 0.838 0.084 Ambigu Matrix 4.50E-1 Grid #25: No Structures Encountered Grid #26: 6 1.844 0.084 0.000 NonAsb Fiber 2.04E-2 Grid s27 through Irid #38: No Structures Encountered Grid #39: 7 3.43G 0.168 0.000 Cellu. Fiber 7.S8E-2' 10 12 2 4 22 21 None 8 10 0 12 0 None Non Asbestos None Non Asbestos None None Non Asbestos None Non Asbestc: Page 3 --------- MIC :rons No Length w idth Thkness Ident Form Mass Aspect EDAX (Picogm) Ratio SAED MG SI CA FE NA Grid #40: 8 2.643 0.110 0.000 Chryso Fiber 6.40E-2 24 Grid #41 through Grid #44: Grid #45: 9 4.405 3.304 No Structures Encountered 0.055 Ambigu Matrix 1.61E0O 1 Grid #46: No Structures Encountered Grid #47: 10 9.637 0.441 0.000 Cellu Fiber 1.47E00 22 Grid #48: 11 0.716 0.110 12 1.542 0.385 0.000 0.000 NonAsb Fiber Ambigu Fiber 1.37E-2 3.62E-1 7 4 Grid #49 through Grid #51: No Structures Encountered Grid #52: 13 3.194 0.826 0.055 Chryso Bundle 3.69E-1 4 Grid #53: 14 1.211 15 1.046 16 1.156 0.055 0.110 0.055 0.000 0.055 0.T300 Chryso Fiber Chryso Bundle Unknwn Fiber 7.33E-3 1.61E-2 5.54E-3 22 10 21 Grid #54 through Grid #66: No Structures Encountered Grid #67: 17 2.037 0.068 0.000 Chryso Matrix 1.87E-2 30 Grid #68 through Grid #71: No Structure^ Encountered Grid #72: 18 6.790 1.358 0.068 Chryso Matrix 1.59EOO 5 Grid #73 through Grid #82: No Structures Encountered > None 6 HOI 0 None None Non Asbestos None Non Asbestos Ambig 2 10 3 3 0 None 6 10 to o 0 Faint 6 1C 0 0 0 Faint iu 1 2 0 None .. None 7 10 0 0 0 Faint 6 10 0 1 0 Page 4 --------- Microns --------No Length width Thkness Ident Form Mass Aspect EDAX (Picogm) Ratio SAED MG SI CA FE NA Grid #83: 19 2.444 0.136 0.000 Unknwn Fiber 7.12E-2 Grid #84: No Structures Encountered Grid #85: 20 5.432 2.716 0.068 Unknwn Fiber 2.01E00 Grid #86 through Grid #99: No Structures Encountered 18 2 None Non Asbestos None 9 10 0 10 I HYGEIAf INC. 1 Report Date: 03/06/89 Fage 1 Asbestos Analysis by Transmission Electron Microscopy Client Name: Richard Kirby Client Sample I.D.: 07 Sample Location: Breathing Zone during hole operations HYGEIA Project #5617 HYGEIA Batch 88 Nov 01 HYGEIA ID HT88-3282 #********#*#**'**'**************'**** ********************'************'* DATA SUMMARY Sample Volume (liters): 190.2 Sample Collected by: C. Spooner Filter Type: Millipore TEM Analyst: W. Cranton Number of Structures: 11 Grid Openings: 56 Date of Collection: 11/23/88 Filter Diameter: 25 mm. Date of Analysis: 03/01/89 Grid Opening Area (mm2): Total Grid Area Analyzed (mm2): 0.007189 0.402584 A********************************* #**************************'****** SUMMARY OF ANALYSIS Total Structure Count (s/cc) .................................................................. 0.055 Total Structure Count (s/mm2) .................................................................. 27.324 Asbestos Structure Count (s/cc)* ........................................................ 0.035. Asbestos Structure Count (s/mm2)*...................................................... 17.388' Asbestos Structure Mass (ng/nr)*..................................................................L74.T17 Asbestos Structure Concentration (s/cc)*....................................... for all structures greater than 5 microns in length with an aspect ratio of 5.1 or greater. 0.025 Analytical Sensitivity (s/cc) ....................................................................... * Includes Ambiguous Structures Ref: TEM/Forml_______________________________________________________ 303 Bear Hill Road Waltham. MA 02154 Telephone <617) 890-4999 Fa* it 17) 890-1058 Report Date: 03/06/89 Page L Asbestos Analysis by Transmission Electron Microscopy Client Name: Richard Kirby Client Sample I.D.: 07 Sample Location: Breathing Zone during hole operations STRUCTURE LISTING HYGEIA Project- ?5617 HYGEIA Batch 88 Nov 01 HYGEIA ID HT88-3282 ********** + --------- Mic irons No Length width Thkness Ident Form Mass Aspect EDAX (Picogm) Ratio SAED MG SI CA FE I Grid Si: No Structures Encountered Grid #2: No Structures Encountered Grid #3: 1 1.54 0.151 0.000 Cellu Fiber 2.83E-2 11 Grid #4: No Structures Encountered Grid t5: No Structures Encountered Grid *6 i Grid *7: 2 3.017 0.377 No Structures Encountered 0.075 Chryso Bundle 2.1SE-1 8 Grid #3: 3 9.805 2.263 0 *075 Chryso Clump 4.25E00 4 Grid #9: 4 8.296 0.151 0.000 Cellu Fiber 1.48E-1 55 Grid #10 55 5.279 0.226 0.000 Cellu Fiber 2.12E-1 23 Grid 111 No Structures Encountered Grid s12: Grid #13: 6 5.759 5.759 No Structures Encountered * 0.096 Chryso Matrix 8.09E00 1 Grid #14 through Grid #19: Ho Structures Encountered None Faint 7 10 1 1 Faint 8 10 1 3 c None. None 1 Hone 5 10 0 ^ --------- Microns-----------No Length width Thkness Ident Form Page 2 Mass Aspect EDAX (Picogm) Ratio SAED MG SI CA FE na Grid #20 7 10.558 1.440 0.000 NonAsb Fiber 3.45E01 Grid'#21 through Grid #39: No Structures Encountered Grid #40: 8 9.642 6.026 0.121 Chryso Matrix 1.78E01 Grid #41 through Grid #43: No Structures Encountered Grid #44: 9 48.758 10 9.118 11 4.799 0.480 0.960 0.768 0.048 0.048 0.048 Chryso Bundle Chryso Bundle Ambigu Matrix 2.85E00 1.07E00 3.55E-1 Grid #45 through Grid #56: * No str uctures Encountered 7 2 102 10 6 None Non Asbestos None 6 10 0 0 m Faint 8 10 0 1 0 None 8 10 0 1 0 None >