Document yobvo6jD5aBmq0zORjE5MJpD

FILE NAME: Abex (ABX) DATE: 1975 Feb DOC#: ABX211 DOCUMENT DESCRIPTION: Abex Corporation Industrial Hygiene Report  CORPORATION XNDUSTR1AL ilY G I ^ JURVEY FR ICTIO N PKGDUCTS GROUP L lilL S A Y , OEfTARIO FEBnU-Jty 10-14, 1 575 This Industrial Hygiene survey van conducted tc dotorivino tnc presence and extent of occupational disease exposures tnroughout the plant and to raake recarsoandations for controlling or liminating the hazards encountered. m llfifflL .-i total of 3 > airborne dust samples were collected at various operations throughout the plant for lead and asbestos. As indicated in Appendix n o . 1 , sixteen of the asbestos samples exceeded the permissible limit of 2 fibers/ctl. The areas in volved included the Finish Department, Blok Press Department, Blok Preform, Upper Compounding, and Blok Inspection at the rear of the new finish area. Highest levels were obtained from Blok Preform during the collection of short term samples (15-30 minutes). Reducing the sampling time was required because of excessive dust loading on the filters which prevents accurate fiber counts. Ana lyses of collected samples revealed nine locations v??ere airborne lead concentrations were excessive. These locations included Blok Preform, the Finish Department, Blok Press, Reclaim de-riveting, and the sorting static in Reclaim Re ception. coincident with the asbestos counts, the highest lead levels were observed in Blok Preform where generation of airborne dust was clearly excessive. The nusfcers of noisy locations anc the extent of noise gene rated, paralleled the measurements taken during cur previous survey of January 3-11, 1374. Although some employees were wearing hearing protective devices, their use is not mandatory, and several employees, especially in the finishing areas remain unprotected. In addition, audiotaet^ic .eating is still not conducted for new and/or noise exposed personnel to identify U,o3e at risk vith significant hearing loss. -1 SPNY 001287 INDUSTRIAL fflrciaai COfiBJBCIIQMS. Z & tU IM k 75-1 Exhausted enclosures or hoods should be pxovic*eu at the blok preform units which dully enclose all but the load ing ports* Point source pickup by the laterally jrositicno . exhaust hoods is not affording effective control during ti>e pressing cycle. 75-2 Provide exhausted enclosure with rear take-off for the weigh scales and mix bine to reduce asbestos exposures during scooping and measuring. The most strategic point where control is needed is at the mix buggies w.'iere manual scooping and transfer of the mix result in high exposures. 75-3 The loose product mix adhering to the surface of freshly preformed truck bloks should be removed prior t' hand ling by the blok press operators, h vacuum or blow-off enclosure should be Installed to reduce or eliminate this source of asbestos fiber and lead exposure. 75-4 The blok press operators are exposed to asbestos and graph!to-surfactant aerosols on the platforms while loading the presses. High velocity slot exhausts should bo considered for installation on the opposite side of the loading platforms to remove these air contaminants. 75-5 Truck blok edge grinder No. 6-411 utilised by the blok press operator to trim the freshly pressed bloks should be provided with increased enclosure, and exhaust capa city should be upgraded. 75-6 Exhaust hoods should be installed on abrasive saws numbered L-26 and L-27 to provide wore enclosure of the saw blades. 75--7 fbs brushing machine and automatic drill press Ho. w--531 la the new section of the Finish Deportment should be provided with improved exhaust closure. These machines are generating fine airborne fibers which are not readily apparent on visual observation of tne operations. 75-y Asbestos fiber levels above the 2 fiber limit were found at 'he radius roll machine adjacent to the aisle in Strip Finishing. Either the strips should be thoroughly cleaned before processing through the unit, or an exhaust hooa should be provided to collect generated fibers. -2- SPNY 001288 75- j Exhaust hoods in upper coiapouhding, especially at xjwdoz and asbestos weigh scales should be replaced or redesigned, and exhaust velocities should be increased. 75-10 Excessive airborne asbestos levels at automatic drill prase No. w-581 should bo reduced through the provision of exhaust ventilation, preferably in the form of on exhausted enclosure surrounding the drill bits. 75-11 Exhaust ventilation at automatic drill No. 3, (Sex. No. L-19) should be upgraded to provide for capture of all particulate wastes. At present, this material builds up on the bench behind the drill press. 75--12 Airborne asbeatoo levels at tho Blok Inspection table at the rear of the new finish area were excessive, and should be controlled through the provision of exhaust ventilation or thorough cleaning of the bloks prior to inspection. 75-13 Elevated airborne lead exposures observed at the do-- riveting operation in Drakeshoe Reclaim and at the sorting statical in Reclaim Reception should be controlled until S hour time weighted average levels can be determined. This can be accomplished by using approved toxic par** ticulate respirators at the above locations. 75-14 Operators at all work locations in Appendices 1 and 2, which are denoted with asterisks, should be provided with approved respiratory protection. Respirators should be used only ss interim protection until appro priate engineering controls can be implemented. 75-15 All ventilation ducts should be provided with pitot openings fox eeasurement of duct velocities. Openings fWiwiii be nearly marked and numbered. 75--16 Fees velocity within the canopy hood at the rubber mill in lower compoundirxj should be increased. 75-17 Exhaust hoods ox enclosed take-offs should be provided at all machines in the Finish Department where ducts terminate in inefficient open-ended trunks. 75-13 when the make up air unit planned for the south side of the plant is to be purchased, the following points should be considered -- -- SPNY 001289 a. The sash air intake should be located remote r any contaminating sources such an exhaust stacks or furnace exhausts. It is advisable to filter the fresh air to protect equipment and provide r^xismia heat exchange efficiency. b. Make up air sources should be located to provide cross ventilation. However, the system should bo engineered to prevent crossdiafts. c. Make up air should be introduced into the plant below the 0 ft. to 10 ft. level. In this manner, the air is used first by people, and best results of general ventilation are obtained. d. Maintain make up air temperatures at approximately the same as the desired room temperature. (Installation of the above unit should eliminate smoke and fumes from the reclaim backing removal oven, a condition caused by make up air starvation.) 75--19 The filters inside the paint specay hood in the Reclaim Department should be cleaned regularly to maintain adequate face velocity. 75-20 Before entering the locker roan. to change, asbestos handlers abould remove asbestos fibers and loose product mix from their clothing with a suction hose connected to a suitable collector. A defined location should be established foe this purpose to encourage routine usage. 75-21 Floors and appurtenances throughout the plant, but es pecially in Blok Preform, Blok Press, and Compounding, should be maintained free of accumulated asbestos fibers and product mixes. Vacuum equipment should be used for this purpose. Manual sweeping should be confined to general fork and office areas which are free of scattered a t accumulated asbestos materials. 75-22 Torn ox perforated plastic bags containing asbestos fibers should be patched or double bagged. Periodic inspection should be made of the bag storage areas to detect damaged bags, and warehouse personnel should be cautioned against perforating the bags. Six SPNY 001290 75-23 Improvement in general housokaepinr; is essential in Bltie Preform, Blok Press, and Compounding. Lead cor.;--*rands and asbestos materials are accumulating on floors, equip ment, and structural members. 75-24 As absorption of lead into the system through inhalation and ingestion is enhanced L. smoking the practice snoulc be prohibited in all production areas. 75-25 Eating and drinking should be prohibited in production areas. At present, employees are carrying food and drink from the cafeteria for consumption at their work stations. This practice increases the potential for lead ingestion. 75-26 Provide ear plugs or other approved hearing protective devices for employees working in areas where permissible durations of exposure are exceeded. Refer to the attached Analyses of Noise Exposures and previous survey reports of 1973 and 1974 for specific locations. Personal bear ing protectors should be considered interim protection until engineering and/or administrative controls can be implemented. 75-27 Modical surveillance in the for of an approved audio metric testing program should be provided for all new employees and annually for all employees whose occupational noise exposures exceed permissible limits. 75-23 Gardner -Beloit O.D. grinder No. L-23 should be enclosed with noise absorbing materials. Sven partial shielding would aid in reducing background levels at adjacent work stations. 75-29 Noise control engineering should be considered for abrasive grinder No. L-26, abrasive grinder n o . l -27, tbs paint spray booth, the Shepard-Thompson grinder, and tha Arc King grinder. with selective booth enclosure which incorporates absorption and shielding into the c o n t r a ction, background levels can be significantly reduced, especially in the Finish Department. aisgsaisa. Airborne asbestos levels were generally higher than those en countered during our previous survey of January 7-11, 1J74. r .. SPNY 001291 Blok Press and Preform areas continue to display excessive fiber levels which are in definite need of control. Blok Preform revealed concentrations which exceed both permissible sight hour time weighted average limits and one time peak ex cursion limits. Improved exhaust ventilation is planned for the three blok preform units, anc priority should be given to the installation of these systems. Full enclosure of the presses weigh scales, and mix buggies is required as opposed to point source collection to insure capture of all airborne materials. The existing lateral slot hoods are of the point source capture type, and as such, are not providing adequate control at the prefoxaers. Their deficient performance can be observed at the back and sides of the preformers where fibers are being released to the ambient air. The heavy accumulations of asbestos fibers on the floor surrounding the machines are also indicative of inadequate collection, in con junction with careless work habits on the part of the operators. At Blok Press, there are essentially two sources of exposure which require control. The preformed bloks which arrive at Blok Press on the tiered racks are coated with fine dust con taining both asbestos fibers and lead compounds. Any amount of disturbance or handling, such as transfer to the press platform, results in airborne dispersion of the dust. A vacuum system or exhausted blow-off enclosure should be provided to clean the preformed bloks prior to transfer to Blok Press. If possible, such a blow-off or vacuum device should be incor porated into the blok preform enclosures to include protection of these operators. The second source of exposure at Blok Press occurs on the vertical lift when the operator applies the graphite lubricant with the spray gun. This not only dis perses asbestos fibers into the operator's breathing zone, but graphite-surfactant aerosols as well. This latter material accounts for a majority of the undesirable, dirty aspects of this operation. To collect both contaminants, side slot hoods connected to modified, flexible travel-vents should be installed on the edge of the press platforms across from the operators' positions. The hoods should include tapered plenums and three rows of slots with velocity in excess of 2 ,0 0 0 fpra at the low est slot. (Refer to Pig. 4-13 for suggested design.) Other areas requiring improved or additional exhaust ventila tion are listed in the "Recommendations" section of the report. Several locations include stand grinders, saws, and drills in - -- SPNY 001292 the Finish Department where branch ducts terminate in open ended exhaust trunks which are either pushed out of the way and not a n d or placed in the vicinity of the point of dust generation. Either way, dust capture is minimal, and air volumes and energy are being wasted. The trunks should be connected to hoods or enclosures which surround the sources of dust release, where trunks are unused or serve no purpose, they should bo disconnected at their point o f entry into the main duct and the opening sealed in a manner to prevent addi tional friction loss. Although mains and branches are basic ally well designed and amenable to systems balancing, ductwork should be thoroughly checked to insure that principles of good duct design are consistent throughout, where elbow radii, aspect ratios, duct sizes, branch entries, duct enlargements, and duct contractions do not correspond to the appropriate examples in Figures 6-19, 6-20, and 6-22, redesign should be considered prior to systems balance. Exhaust hood design at both weigh scales in upper compounding is not adequate either because of poor enclosure or excessive handling requirements by the operator. Redesign is planned fox the powder weighing exhaust hood which should reduce handling and improve collection efficiency. The asbestos weigh scale should also undergo redesign to provide better enclosure and increased capture velocity at the face of the hood. The existing hood is open 'n two sides, reducing face velocity and resultant fiber capture. In addition, the exhaust duct opens directly into the hood with no plenum transition. This condition also interferes with entrainment cf airborne fibers. vfhen exhaust systems have been improved In the areas discussed above, and/or as outlined in the "RecommendationsM, airborne control of both arbestos and lead exposures will ensue. How ever, lead absorption by ingestion must also be considered, and the plant should make extended efforts to reduce this source Of exposure. Extensive clean-up and continued main tenance ie required in all lead handling areas, but particu larly in Compounding where spilled powders, settled fine dust deposits, and caked raw materials on floors in traffic arees were observed. These conditions enhance the possibilities of inadvertent lead ingestion, especially as the personal hygiene of operators also tends to deteriorate under these conditions. As indicated in the "Recommendations", smoking, and consumption of food and beverages should be strictly prohibited, not only in Compounding but in all production areas. Although other / SPNY 001293 considerations such as the establishment of rest breaks and pertonne 1 complaints fill arise, the need for this restriction i# supported by numerous lead studies, and should be seriously considered by the plant. At the time of the survey, the majority cf employees in noise hazardous arec>3 were without hearing protective devices, prilasriiy because the program is still voluntary, an earplugs and/or ear muffs are supplied only upon request by the employees. In addition, audiometxic testing is not conducted at the plant, precluding the advantages to Le gained from pro-employment screening or detection of threshold shifts within exposed populations. Because of limited floor space, full enclosure or isolation of noisy machines in the Finishing Department is not practicable. However, there are some excessively noisy units such as abrasive saws, O.D. grinders and drill presses for which smaller sound absorbing exhaust enclosures could be designed. As a final note, the intermittent nuisance noise from metal to metal contact at the backing removal hopper and adjacent conveyor is still in evidence. *The chute and con* veyor should be lined with inpact absorbing materials to eliminate this contributory noise source. I would like to thank Pete Milner and Clare Netherton for their cooperation and assistance during the course of the survey. 4/1/75 SURVEYED BY* M. David Gidley, Certified Industrial Hygienist -aSPNY 001294 INDUSTRIAL HYGIENE SURVEY ABEX CORPORATION / *. ' * - GLOSSARY cfm - Cubic feet per minute dBA ~ Decibels-symbol denoting the relative in tensity of sound pressure levels (re; 0.0002 dyne/square centimeter) fpm . - Fee. t per minute \ GRA - General room atmosphere mg/M3 mppcf " Milligrams per cubic meter of air ~- - - - Million particles per cubic foot of air. NIOSH - approved- Approved by the National Institute for Occupational Safety and Health OBZ -- '' r Operator's breathing zone ppm " Parts per million by volume PS TLV Ventilation - Personal sample . - Threshold limit value for an 8-hour daily exposure \ ' - The terms ventilated, ventilating, or exhaust .. imply the use o mechanical such as a fan for air movement, unless otherwise noted. M.S.# -- Medical Study No. / SPNY 001295 PERMISSIBLE NOISE EXPOSURES Duration per day, hours 8 6 4 3 2 ih l h h or less Sound level dBA 90 92 95 97 100 102 105 110 115 SPNY 001296 .ETHOD OF COLLECTION! Membrane ilter with personal sampling pump at LETHOD OF ANALYSIS: Phase Contrast .icr oscopy FPG ~ LINDSAY APPENDIX NO. 1 ANALYSES OF AIR SAMPLES FOR ASBESTOS__________ 2 LPM. DATE ANALYZED: 3/10-14/75 ANALYST: M. Desouky TLV: 2 fibers/ml >5>i in length ample NO. re to rLta^VO\ 1 2 3 4 5 6 7 0 9 10 Date 2/11/75 II II II II II II II n. ii Time 9:16am 1 1 :15am 9:20am 10:43am Total(M:i) Air Vol. .219 .164 9:54am 11:41am 9:2 9am 10:55am 9:50am 11:38am 9:33am 10:58am 1 0 :05am 11:48am 10:55am 11:42am .182 .172 .178 -- .167 - .195 .078 Location Blok Press No. 4 Fiber s/r T Cone. Remarks 3.84* OBZ - MS# 2C-657 Blok Presses Nos. 5.78* 1 & 2, & truck blok edge grinder #L-411____________ Finish Dept.O.D. 1.51 grinder(new unit adi . to column E-7 ) .... Finish Dept.- 1.60 abrasive saw #L-26 Debonder (Reclaim 0.23 hopper)____________ Finish Dept.- Do- Damaged All zephvr Finish Dept.- Filter 1.28 Abrasive saw L-27 Blok Press area Blank Finish Dept. 2.19* Brushing machine Finish Dept.-Abra 3.34* sive saw L-26(shor term sample) OBZ - Doug Lawson OBZ - MS# 2C-85 OBZ - MS# 2C-651 OBZ - MS# 2C-173 OBZ - John Martin OBZ - MS# 2C-582 OBZ - MS# 2C-651 r (*) concentration in excess of TLV. SPNY 001297 -1- FPO - LINDSAY APPENDIX NO. 1 ANALYSES OF AIR SAMPLES, ;THOD OF COLLECTION: Membrane FOR Iter with personal sampling pump at 2 .LPM. ASBESTOS__________ . 1TH0D OF ANALYSIS: Phase contrast croscopy impie No. (Id iLatT 11 Date 2/11/75 Total(MJ Time Air Voi, 1 0:58am .095 1:47am Location Finish Dept.-Abra sive saw L-27(shor term sample' Blok Press Dept, 3.38* DATE ANALYZED: 3/10-14/75 ANALYST: M. Desouky TLV: 2 fibers/ml >5>i in length Remarks OBZ - JOHN MARTIN SPNY 001298 9:36am ,269 Finish Dept.-Auto 1 1 :47am matic drill Press # W - 5 8 1 _________ 2 :08pm .228 ' (Hand roll mach. 0.91 OBZ - MS# 2C-743 18 4:02 pm ad j . to aisle(stri] forming) C o n c e n t r a t i o n i n e x c e s s of TLV. -2- FPO - LINDSAY APPENDIX NO. 1 ANALYSES OF AIR SAMPLES THOD OF COLLECTION: Membrane Iter with personal sampling pump at THOD OF ANALYSIS: Phase Contrast croscopy FOR--- ASSESXQS---------- 2LPM. . DATE ANALYZED: 3/10-14/75 ANALYST: M. Desouky TLV: 2 fibers/ml >5;a in length 2/12/75 9:14am 11:50am ,306 Strip FinishGrinder #i(Ser. No OBZ - MS# 2C-642 L-227)____________ 22 10:00am ,201 Final inspection 0.68 OBZ - MS# 2C-21 11:55am lin adj. to paint spray booth 23 9:49am .232 Arc King grinder 11:54am ad j . to paint spra booths______________ 9:59am Strip Finish-Disc MS# 2C-653 11:52am 1:51pm brake riveter #5 Brake Shoe Reclaim MS# 2C-622 4:04pm 1 1 :40am de-riveter operato Blok preform #2 MS# 2C-229 11:59am (short term sample 27 2/13/75 9:10am 206 Automatic drill #3 2 .67* OBZ - MS# 2C-187 10:53am (Ser. No. L-19) 28 2/12/75 1 :,59pm .253 Reclaim Reception 0.4 OBZ - MS# 2C-566 4:08 pm in process inspec tion _____ _ 29 2/12/75 2 :20pm 224 Finish Dept.-' Jig 0.56 OBZ - MS# 2C-623 4:16pm drill #6(Ser.#L-7) 3 :10pm .089 Blok Press #3 & 4 3.43* OBZ - MS# 2C-657 30 (shortterm sample) 3 :55pm (*) concentration in excess of TLV. -3- SPNY 001299 FPG - LINDSAY APPENDIX NO. 1 ANALYSES OF AIR SAMPLES ITHOD OF COLLECTION: Membrane FOR Iter with personal sampling pump at 2. L P M . :TH0D OF ANALYSIS: Phase contrast ASBESTOS__________ . croscopy . DATE ANALYZED: 3/10-14/75 ANALYST: M. Desouky TLV: 2 fibers/ml >5>i in length imple NO. eld Lab. 31 32 33 34 35 36 37 38 0)39 T) Z -< 40 -a CO o o (*) Date 2/12/75 2/13/75 II II II ' it II II II II Time 2 :01pm 4:11pm 9:08am 10:46am * 9:21am 11:46am 10:02am 10:42am 9:33am 3 :11 pm T0tal(MJ ) Air Voi. .257 .192 .270 .076 .652 10:00am 10:37am .073 10:16am 10:48am .059 10:-38am 10:52 am .036 10:42am 10:54am .025 concentration in excess of ibers/i ft------------------------------------- Locat5_on Cone. Reclaim Reception- 0.32 sor tina station Finish area-Blok 5.41* inspection Finish.Dept. Blank Warehouse-packer- 0.39 export coils Reclaim Reception 0.52 sortine station Warehouse packaging 0.14 area-General Room air Brake Shoe Reclaim- 0.50 de-riveter oper. (short term sample] Automatic drill #3 6.92* (Ser.#L-19) short term sample Brake Shoe Reclaim- 1.82 de-riveter oper. (short term sample) Reclaim Reception 1.71 sorting station Remarks OBZ - MS# 2C-598 OBZ - MS# 2C-633 ' OBZ - MS# 2C-79 OBZ - MS# 2 C-598 GRA - OBZ - MS# 2C-622 OBZ - MS# 2C-187 OBZ - MS# 2C-622 . OBZ - MS# 2C -598 ' . TLV. SPNY 001300 -4- PPR - LINDSAY., apPF.NimX NO. 1_ ANALYSES OF &TR SAMPLES POR THOD OF COLLECTIONt Membrane Iter with personal sampling pump at 2.LPM. AS B E S T O S ---- ----- THOD OF ANALYSIS: Phase Contras DATS ANALYZED: 3/10-14/75 ANALYST: M. Desouky TLV: 2 fiLers/ml >5;i in length -5- f p a - LINDSAY APPENDIX NO. 2_ ANALYSES OF AIR SAMPLES [ETHOD OF COLLECTION `.Membrane filter with personal sampling pump at 2 LPM LETHOD OF ANALYSIS: Atomic Absorption FOR ,, LEAD I ---------- DATE ANALYZED: 3/10/75 ANALYST: M. Desouky TLV: 0.15 mg/M3 ;ample No. 'ield Lab. Date 2/11/75 Total(M3) Time Air Vol. 9:16am .219 11:15am 9:20am .164 10:43am 9:54am 11:41am Blok Press #4 mg/MConc, Trace Blok Presses Nos. 1 & 2, & truck blok edge grinder N o . L-411_______ Finish Dept. O.D. grinder (new unit adi . to ColE-7) a- saw #L-26 Trace Remarks OBZ - MS# 2C-657 OBZ - Doug Lawson SPNY 001302 10:05am 1 1 :48air _ 10:55arr 1 1 :43arr Finish Dept.brushing machine Finish Dept.-Abrasiveskw #L-26 (shoi Ramtile)-- (*) concentration in excess of TLV. -1- OBZ - MS# 2C-582 OBZ ~ MS# 2C-651 FPft - LINDSAY APPENDIX NO. 2 ANALYSES OF AIR SAMPLES ETHOD OF COLLECTION* Manibrane filter FOR---- LEAD--------- .--- with personal sampling pump at 2 LPM ; . ' ETHOD OF ANALYSIS* Atomic Absorption DATE ANALYZED! 3/10/75 A N A L Y S T : M. Desouky TLV* 0.15 mg/ M 3 ample NO. lr JLO ll 12 13 14 15 16 17 18 C/n> ^ 19 o o ----W 20 o CO (*) Date 2/11/75 II II II II II II II 2/12/75- II TotaXM3) Time Air V o l . 10:58am , .095 11:47am - -- 2 :30pm 4:04pm 2 :18pm 4:00pm 2 :14pm 4 : 01pm 2 :11pm 3 :37pm .181 .197 .214 .172 9:36am 11:47am .269 2 :08pm 4 : Q2pm 9 :20am 11:40am 9:27am 11:45am .228 ' .291 .270 mg/M3 Location Cone. Finish Dept.-Abra Trace sive saw #L-2 7 (short term sample Bbk Press Dept. Damaged Filter Radius roll mach. Trace ad i . to aisle Upper Compounding Trace weiah operator Lower Compounding Trace rubber mill oper. Finish Dept.-Hand Trace roll mach.#73 (strip forming) Finish Dept.-Auto Trace matic drill press #W-581 Hand roll mach. Trace ad j . to aisle (strip formina) Blok Preform #2 Trace (mix no. 551C) Upper compounding Trace 80 mix operator Concentration in excess of TLV. -2- Remarks OBZ - John Martin OBZ - MS# 2C-503 OBZ - MS# 2C-675 OBZ - MS# 2C-564 OBZ - MS# 2C-27 OBZ - MS#.2C-626 OBZ - MS# 2C-743 OBZ - MS# 2C-229 OBZ - MS# 2C-74 ' - . ' SPNY 001303 ETHOD OF COLLECTION* Membrane filter with personal sampling pump at 2 LPM ETHOD OF ANALYSIS* Atomic Absorption FPQ - LINDSAY APPENDIX NO. 2 ANALYSES OF AIR SAMPLES FOR------ SiS&C------- ---. DATE ANALYZED: 3/10/75 ANALYST: M. Desouky TLV: 0.15 mg/ M 3 ample NO. IXP JLAO 21 22 23 24 25 26 27 28 29 pa t ft 2/12/75 II II II II II 2/13/75 2/12/75 II . Total (M3 ) Time Air Vol. 9:14am .306 11:50an lOiOOan 11:55an .201 9:49am 1 1 :54arr .232 9:59am 11:52air 1:51pm 4 : 04 pm 11 r40arr 11:59am 9 :10am 10:53am 1 \ 59pm 4:08pm .186 .238 .045 .206 .253 ' 2 :20pm 4:16pm .224 mg/M^ Location Strip Finish- .... Cone. Trace grinder #1 (ser. No. L-227) Final inspection Trace line ad j . to paint spray booth Arc King grinder Trace adj. to paint spra Y booth Strip Finish-Disc 1 .04 brake riveter #5 Brake Shoe Reclaim .05 de-riveter oper. Blok Preform #2 .35* (short term sample ) Automatic drill #3 .21* (Ser. No. L-19) Reclaim Reception .09 in process inspec tion Finish Dept.-jig .04 drill #6 (Ser. No. L-7) Remarks OBZ - MS# 2C-642 OBZ - M S # 2C-21 OBZ - MS# 2C-284 OBZ - MS# 2C-653 OBZ - MS# 2C-622 OBZ - MS# 2C-229 OBZ - MS# 2C-187 OBZ - MS# 2C-566 OBZ - MS# 2C-623 (*) concentration in excess of TLV. -3- ' l r SPNY 001304 FPG ~ LINDSAY APPENDIX NO. 2 ANALYSES OF AIR SAMPLES STHOD OF COLLECTIONt Membrane filter FOR__------ LEAD . .. .... with personal sampling pump at 2 LPM -. . ETHOD OF ANALYSIS: Atomic Absorption DATE ANALYZED: 3/10/75 ANALYST: Desouky TLV: ' 0.15 m g / M 3 ample NO. Total (M3 ) mg/M3 ipld Lab. Date Time Air Vol. Location Cone. Remarks ' 30 2/12/75 3:10pm .089 Blok press #3 & 4 .27* OBZ - MS# 2C-657 3 :55pm (short term sample ' 31 ll 2 :01pm .257 Reclaim Reception .11 OBZ - MS# 2C-598 4:11pm sorting station 32 2/13/75 9:08am .192 Finish area-Blok .10 OBZ - MS# 2C-633 10:46am inspection 33 II -- - . Finish Dept. Blank 34 II 9:21am .270 Warehouse-packager Trace OBZ - MS# 2C-79 11:46am export coils 35 II 10:02am .076 Reclaim Reception Trace OBZ ~ MS# 2C-598 10:42am sorting station 36 II 9:33am .652 Warehouse packagin 3 .06 GRA - 3:11pm area-General Room % Air 37 II 10:00am .073 Brake Shoe reclaim .14 OBZ - MS# 2C-622 . 10:37am de-riveter oper. (shortterm sample) 38 -o o 39 o CO o cn II lQ:16am 10t48am II . 10:38am 10:52am .059 ' .036 Automatic drill #3 (Ser. #L-19)short term sample Brake Shoe Reclaim de-fiveter oper. (short term sample .51* .32* OBZ - MS# 2C-187 OBZ - MS# 2C-622 (*) concentration in excess of TLV. I -4- SPNY 001305 FPG - LINDSAY APPENDIX NO. 2 ANALYSES OF AIR SAMPLES ETHOD OF COLLECTIONt Membrane filter FOR-- ;--- LEAP------------- ------- with personal sampling pump at 2 LPM . ETHOD OF ANALYSIS* Atomic Absorption ample No. ield Lab. 40 31A 32A 35A 36A Date 2/13/75 2/13/75 Time 1 0 :42am 10:54am 2 :25pm 2 :41pm 2 :41pm 3:02 pm 3 :02pm 3 :28pm Total (MJ) Air Vol. .025 031 ,035 ,031 mg/TP" Location Cone. Reclaim Reception .31* sorting station Blok Preform #1 .51* (short term sample Blok preform #1 .31* (short term sample Blok preform #1 .71* (short term sample Blok Preform Blank DATE ANALYZED* 3/10/75 ANALYST: M. Desouky TLV* 0.15 mg/M3 Remarks OBZ - MS# 2C-598 OBZ MS# 2C-369 OBZ - MS# 2C-369 OBZ - MS# 2C-369 SPNY 001306 (*) concentration in excess of TLV. -5- . FPG ~ LINDSAY APPENDIX NO. 3 ANALYSES OF NOISE EXPOSURES METER: General Radio Sound Level Meter WEIGHTING: "A" Weighting Network MICROPHONE: GRC 1560-2131 DATE: 2/11-13/75 ANALYST: M. D. Gidley SOUND LEVEL CALIBRATOR: GR 1562-A-154 Exposure Perm.Exp. Daily* Time in Time in Noise LOCATION dBA Hours Hours Dose 1. Gardner Beloit O.D. grinder a. operating 98 4.5 2.66 - b. idlinq 84 3.5 8+ 2. Abrasive grinder #L-26 a. grinding b. idlinq 98 4.5 88 3.5 2.66 - 8+ 3. Multiple drill #F-581 a. drilling b. air release 92 6.94 6 94 1.06 4.5 1.38 4. Drill #L-19 a. operating b. background 98 3.76 2.66 _ 86 4.24 8+ 5. Drill press #L-17 86 - 8+ NO 6. Blok O.D. grinder adj. to Column E-7 a. operating 96 2.246 3.5 b. background 84 5.75 8+ 7. Riveting machine (Ser. No. 6784) a. operating 92 4 6 b. background 8. Riveter #5 9. Paint spray booth 85 ' 4 86 6 98 6.5 8+ 8+ - 2.66 - 10. Inspection & Packaging 89 6.5 8+ adj. to paint spray booth 11. Shepard Thompson grinder adj. to paint spray boot h a. grinding & paint spra y 97 6.5 3 b. grinding 96 1.0 3.5 2.44 c. background 89 0.5 8+ 12. Arc King grinder a. grinding b. idling 96 4.6 3.5 90 3.4 8 .17 Ear Pro tection Required Yes Yes Yes Yes No No No Yes No Yes Yes -1SPNY 001307 . FPG - LINDSAY APPENDIX NO. 3 ANALYSES OF NOISE EXPOSURES METER: WEIGHTING: MICROPHONE: DATE: ANALYST: SOUND LEVEL CALIBRATOR: LOCATION General Radio Sound Level Meter "A" Weighting Network GRC 1560-2131 2/11-13/75 M. D. Gidley GR 1562-A-154 xposure Perm.Exp. Daily* Time in Time in Noise dBA Hours Hours Dose 13. Hammond belt grinder a. operating b. background 93 5 88 3 14. Ross oven - on floor in adj. work area_________ 88 15. Blok Preform area 85 8 16. Blok Press area________ 86 7. Backing removal-Reclaim oven a . impact 98 2 b. background__________ 85 5.5 5.25 8+ 8+ 8+ 8+ 2.66 8+ ar Pro tection Required No No No No No (*) Daily Noise Dose is the numer 4cal exprs sion of ths c o m m e of 2 or more periods of noise exposure ct different levels sum of the fractions, effect When the J L + _n Ti T2 Tn where C= Actuc time of xposure at a spec jjfic noise evel T = Perniissible ex DOS ure t Lme exceeds unity, the mixec exposure is cor sidered to be in excess of the Threshold Limit Value. -2SPNY 001308 Z2G ~ U nD F.py 'I - J . APPBMDlv fln. i .'iv asmon ' ' ' 1 . **i*t spray bootn (hooa 4 Blok Preform . No* * * 2 2 ih ^ ihood face) S i S T(hJooZd face) ^ 5. Arc King grinder 6- Sh.pard-rhoap,, s r l a d M .pray boot,, 7` 8triP " I* - g r d 8 . Strip W a r n , - griad 9. 10. U. O.D. g r i n d - . i p fialsh Drill press #2 (duct) 0 * r !i3 drill w . ,, #3 V E L O C IT Y 460 - 2500 `2500 170 No Pitot openings .6000 No pitot opening Mo pitot opening No pitot o p . ings >6000 orifice, Provide cir orifice Provide cir, orifice Provide circ orifices * nua!kre 12. Brushing machine (duct) '.3. Drill press i& -6 (duct) 14. Multiple drill #w~5ai 15. 1C. r l t i * * * * * * * * - * ^uct) Chamfex W i (hood fa) 17. Abrasive saw #1,-26 (open trunk) 1 3 . Abrasive saw #L-27 K 0. i Drill o*i Drill press L-7 Multiple drill (rear take-off) >6000 2100 >6000 Damper paru-**, ^ io aG< No pitot opening >6000 >2500 Pr<-Ti Circled & nia^ orifice cr < 2 0 0 at o M from trunk 1100 at 6 " from open hood ace 2400 1500 > 6 G00 6000 >6000 Provide exhaust hoo face Provide exhaust txx encl~osure Provide replace Provide replace Provide replace exhaust h open ends ? exhaust i t open trui tb exhaust 04 open tr* > 1SPNY 001309 J' ? ' :* V* A ; f g .-..JJflPSAY maa&,ai..i g flffg. gasa Yawgjnri^g ffifimfiX.JU,, 7 yXftHfiM 24. DO"All Z&gfoyx 25 Hammond licit ;cindex 26. Upper compounding weigh scale (powders) a. at hood face L. at pitot opening #40 27. Upper coapounding-aabestos weigh sc*iie hood (hood face) 23. lower caspounding-^rubber mill canopy hood a. hood face b. pitot opening in duct VELOCITO ..Jim.,. NO pitot opening No pitot openings 500 2400 700 100 500 c Provide circled & number orifice Provide circled & number orifices Inadequate pickup low flowrate Redesign hood a n d Increase velocities -2SPNY 001310 HOOD DESIGN DATA 4-17 D IS T R IB U T IO N B Y B A F F L E S See Fig. 4 - 1 6 LONG BOOTHS - D IS T R IB U T IO N B Y M U LTIP LE T A K E -O F F S arid TAPERS B O O TH -TY P E HOODS ( Same principle apply to canopy type) S lo t velocity QOQ tpm o r higher. D ISTR IB U TIO N B Y S P U T T E R VANES D IS T R IB U T IO N BY S LO T (or b affles) D IS TR IB U TIO N B Y TAPER S ID E -D R A FT & SUSPENDED HOODS AMERICAN COHERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS P R IN C IP L E S O F M A N IF O L D DESIGN DATE 1 -6 4 I F ig . 4 - 3 SPNY 001311 6-36 INDUSTRIAL VENTILATION ELB O W R A D IU S Elbows should be 2 or 2 1 /2 diameters centerline radius except where space does notpermit. w A S P E C T R A TIO Keep A R (j - ) high in using rectangular duct V m * Minimum transport velocity. A * Cross section a n a . PRO PER D U C T S IZ E Size the duct to hold the selected transport velocity or higher. . , AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS P R IN C IP L E S O F DUCT D ESIG N DATE 1 - 6 6 F in F -fQ SPNY 001312 DESIGN PROCEDURE 6-37 i Bod /beh change in diam eter Bod Branches should enter a t gradualexpansions and a t an ongte o f 3 0 or less (preferred) to 4 5 if necessary. I 4_L ------ ---- 1 h _______ I < f --- 2D H" -20-- J F air Bad BRANCH ENTRY Branches should not enter directly opposite each other. , AMERICAN CONFERENCE OF . GOVERNMENTAL INDUSTRIAL HYGIENISTS P R IN C IP L E S O F DUCT D E SIG N DATE ( - 6 6 1 Fig. 6 - 2 0 SPNY 001313 DESIGN PROCEDURE 6-39 DUCT ENLARGEMENT A /in c h ch an g e in d ia m e te r to e v e ry 5 inches in len g th GOOD BAD DUCT CONTRACTION r --------- > b_____'--y r --- - 3 J ^ t in c h ch an g e in d ia m e te r - ) Q ~ _____ ____Z to e v e ry 5 inches in length. GOOD BAD STACKHEAD 2000 !2 / ! ^ 2400 to 3000 8 n n 4 2 O 4 1 R IG H T VerticaI discharge cap throws upward where dilution w ill take place. ' WEATHER CAP WRONG D eflecting weather cap discharges downward. AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS PRINCIPLES O F DUCT DESIGN datt 9 - 6 6 | Fig. 6 -2 2 SPNY 001314 I July 16, 1)75 M X P. C. Nilfttt Plant Manager FPO - Lindsay Subject* Induetrial Hygiene Survey Report of 2/U-14/75 and status Letts* Noting your general comment on the status letter of July ii, 1375 it is not unusual that significant variations in eomparative airborne asbestos levels would occur Iron cne year to the next especially at inadequately vmtilaced n*gh4iwyg where control is minimal. Comparing the 1974 and 1975 reports major variations occurred only at the Bid* Preform units during the collection of short term samples the shnrt t e n samples were collected at Blok P r e f o m B * 1 M day late than the longer ter samples collected s Blok Preform Ho. 2. During the sampling at Blok Preform Ho.2 it was the only machine operating. D m following day bth Preform units were operating during the collection of the hart term samples. This may accouit fee some of the inoreme. Although specu lative at thin point, other factors cold have included variations in aahlent temperature, presura, and/or relative humidity, temporary changes in make ufair supply, hood flow rate fluctuations condition and typeJf mix, work techniques, height of the operator (physical pzoacmity to the source of contamination), machine adjustment, ad/or contributory fiber encroachment from adjacent operations i.e. Blok Press, strip Finish, etc. The short term samples rare collects during a period of peak work activity te determine if asbes concentrations exceeded the established of lOfibers per milliliter greater than 5 s i c m * in length. This list is part of the Ontario standard which prohibits any excuxsons above the 10 fiber level. Aa indicated in the report, all th>* consecutive short term samples at 27.98 mg/k3 , 1 7 .3 1 rag/, and 27.49 mg/k3 exceeded the Ceiling Limit. Considering tl? conditions existent *t the time from a subjective viewpoint, t is likely that continued short term sampling throughout tfcday would have yielded a distributed average 8 hour exposu* level of similar high SPNY 001315 Hr. P. c. Milner ? * T ^ ft July 16. 1J75 1 h=V Pr','," .t s a 1 ? comparison to "r ' U " U t " taOT-' U y " any fu rth e r c u a .tio n n . MDGxJSJ CC* C. A. 2. C. v'G. D. G. R. c. Blackwell. Jr., *. Borin EE. Feierabend w. B etterto n Nicholson K. Bennie L. Romine Livingston M.r. M . M. David Giclley, Hana< Industrial Hygiene nvirotuaanta1 Control SPNY 001316 ! ' I E.H. Feierabend, wincijo;:tar We had u v in it ye terd ay i\x K r . C h a rlie SkjOo* j f tlte aW vo , to t k o a ir foatples a t vsdfci.Ae lo c a tio n s .. T hie weo a ro u tin e tau ri. survey Ito ia m hora in tL jrch l a s t year >lro. oaaplec were t-'ken with ?el*y-hic puap at the following lc.tl .*: Zheader - loading Unie; ding kxiige Hixar iu<nd oll idrofora Finishing - Civus&ing During (Uet Hix) - block Drill ;voy Drill lyyting law Strip I*. Grinder General Background 2k> personal rapiafi ero taken* <1U odvi&e further when re*>ort is received* Ptft:iw c*c. Dr* Blackwell D.K. Bennie D. Glolcgr G. Nicholson ^ a . ilvingt:ton P*C. Kilner SPNY 001286