Document MJj9e5DvR5deXpY5820L8Z1M7

IJ l E,K. Felarebena* ^Lncijo.rtar. *v.rci. 17 1-/73. We had a viuit yi terucv firjo Hr. uhuriie of the .iWvu, to t ice air ?<-iaples at Tsi.e iocwticno. This w&o >:i r xjtiaa uicVlwI survey - lie was here in &urch l*st year -lco. oMpl; were t-rxken with Teleualic puap at the following 1 -c. ti .*=. ; 2moj#r - loading Qnlcivding lodige Mixer - Ch4Jfeia Iteming (uft mix) limct ucU Prefona finishing - Block Brill voy Drill Allying isv Hrip I.B. Grinder Genor-il Background 3o pcrsoruu fc-'xyies oena taken* 'ill ..oivi&e farther report is received* |j \ \ UV.*-w P.C. Kilner c.c. dr. Eft flckwl 1 DK. Bennie D, Giuley G. Nicholson li. livingston SPNY 001286 :jsz:. co^jR'.Ticci INDUCTRIAL IIYGI^si JUKVSV FRICTIOB PRODUCTS CROUP XUTSAY, OtttARIO FEBRUARY 10-14 , 1 ?75 This Industrial Hygiene survey van conducted tc determine toe presence and extent of occupational disease exposures through out the plant and to raoke recommendations for controlling ox eliminating the hazards encountered, mmftt a total of 3> airborne dust samples were collected at various operations throughout the plant fox lead and asbestos. As indicated in Appendix No. 1, sixteen of the asbestos samples exceeded the permissible limit of 2 fibers/ml. 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. Analyses of collected samples revealed nine locations v!ier airborne lead concentrations wore excessive. These locations included Blok Preform, the Finish Department, Blok Press, Reclaim de-riveting, and the sorting station 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 numbers of noisy locations one the e:ctent of noise gene rated, paralleled the raeaoureiacnts taken during cur previous survey of January I--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, audiomet''ic eating is still not conducted for new and/or noise exposed personnel tc identify uw>:ae at risk vith significant hearing loss. -1- SPNY 001287 cagRjscTiQMa.Jaaa/isgp 75*1 Exhausted enclosures or hoods should be provicied at the blok preform units which dully enclose oil but the load ing ports. Point source pickup by the laterally positions.. exhaust hoods is not affording effective control during tiie pressing cycle. 75-2 Provide exhausted enclosure with rear taka-oi for the weigh scales and mix bins to reduce asbestos exposures during scooping and measuring. The most strategic point where control is needed is at the mix buggies vdiere 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, a 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 graphite-surfactant aerosols on the platforms while loading the presses. High velocity slot exhausts should be considered fox installation on the opposite side cf 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 more enclosure of the sow blades. 75-7 lbs brushing machine and automatic drill press No. i'-581 in the new section of the Finish bopar taunt should be provided with improved exhaust enclosure. These machines are generating fine airborne fibers which are not readily apparent on visual Observation of the operations. 75-8 Asbestos fiber levels above the 2 fiber limit were found at :he radius roll machine adjacent to the aisle in Strip Finishing. Either the stzipe should be thoroughly cleaned before processing through the unit, or an exhaust hooa should be provided; to collect generated fibers. 2 SPNY 001288 75-3 Sxhaaat hoods in upper compounding, especially ut *01,doz and asbestos weigh scales should be replaced or redesigned, and exhaust velocities should be increased. 75-10 Excessive airborne asbestos levels at automatic drill press No. w-581 should b reduced through the provision of exhaust ventilation, preferably in the form of an exhausted enclosure surrounding the drill bits. 75-11 Exhaust ventilation at automatic drill No. 3, (Sez. No. b--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 asbestos levels at the 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 dariveting operation in Brakeshoe Reclaim and at the sorting station in Reclaim Reception should be controlled until 5 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 as interim protection until appro priate engineering controls can be implemented. 75-15 All ventilation ducts should be provided with pitot openings for measurement of duct velocities, openings Should be dearly marked and numbered. 75--16 Pace velocity within the canopy hood at the rubber mill itt lower compounding should be increased. 75-17 Exhaust hoods or 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 fox the south side of the plant is to be purchased, the following points should bo considered} SPNY 001289 a. the Crash air intake should be located rerrwte roc; any oemtaainating sourced sucb as exhaust staciis or furnace exhausts, it is advisable to filter the fresh air to protect equipment and provide r^ximuis heat exchange efficiency, L. Make up air sourcea should be located to provide cross ventilation. However, the system should bo engineered to prevent croasdxafts, 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 oaks up air temperatures at approximately the sacae 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.) 75-13 The filters inside the paint spray hood in the Reclaim Department should be cleaned regularly to maintain adequate face velocity. 75--20 Before entering the locker rootr. to change, asbestos handlers should remove asbestos fibers and loose product mix fxcxa their clothing with a suction hose connected to a suitable collector. A defined location should be established for 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 ptodaet mixes, vacuum equipment should be used for this purpose. Manual sweeping should be confined to general work and office areas which are free of scattered or accumulated asbestos materials. 75-22 Torn or perforated plastic bags containing asbestos fibers should be patched ox 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. SPNY 001290 75-23 Improvement in general housekeeping is essential in Blok Preform# Biol: Press, an I Compounding. beao compounds and asbestos ranteriaIs are accumulating on floors# aquipsnt, and structural mesibero. 75-24 As absorption of lead into the system through inhalation and ingestion ia enhanced b. smokingt the practice anoulc be prohibited in all production areas. 75-25 Eating and drinking should be prohibited in production areas. At present# employees are carrying food and Ox ink 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 heajr Ing protectors should be considered interim protection until engineering and/or administrative controls can be implemented. ' 75-27 Medical surveillance in the fora 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. 75-26 Gardner-fieloit 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 Ho. L-27, tbs point spray booth# the sbepard-Tfcoopson grinder# and tbs Arc King grinder, with selective booth enclosure which incorporates absorption and shielding into the construction# background levels can be significantly reduced# especially in the Finish Department. atgeresett Airborne asbestos levels were generally higher than those en countered during our previous survey of January 7-11, 1974. SPNY 001291 Blok Press and Preform areas continue to display excessive fiber levels which ere in definite need of control. Blok Preform revealed concentrations which exceed both permissible eight 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 ba given to the installation of these systems. Pull 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 preforraers. 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 2,000 fpm 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 "Recororacndationa" section of the report. Several locations include stand grinders, saws, and drills in -6 -- SPNY 001292 the Finish Department where branch ducts terminate in opon ended exhaust trunks which are either pushed out of the way and not used or placed in the vicinity of the point of oust generation* Fitter way, dust capture is minimal, and air volume8 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 ox serve no purpose, they should be disconnected at their point of 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 wall designee and amenable to systems balancing, ductwork should be thoroughly checked to insure that principles of good duct design are consistent throughout, there 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 for the powder weighing xh3uet 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 'fi 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 of airborne fibers. Vihen exhaust systems have been improved in the areas discussed above, and/or as outlined in the "Recommendations*, airborne control of loth arbestes 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 is 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 areas 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 "Rscoramendotions", 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 personnel complaints * ill arise, the need for this restriction is supported by numerous lead studies, and should be seriously considered by the plant. At the time of the survey, the majority c employees: in noise hazardous erec.3 were without hearing protective devices, pri marily because the program is still voluntary, an. earplugs and/or ear stuffs are supplied only upon request by the employees. In addition, audiometric testing is not conducted at the plant, precluding the advantages to be 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 Deportment is not practicable. However, there are some excessively noisy units such as abrasive saws, O.B. 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. Tfce cfcute and con veyor should be lined with impact 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, Certi Industrial Hygienist -G- SPNY 001294 INDUSTRIAL HYGIENE SURVEY ABEX CORPORATION I\ '. . GLOSSARY cfm dBA - Cubic feet per minute ~ Decibels-symbol denoting the relative in tensity of sound pressure levels (re; 0.0002 dyne/sguare centimeter) f pm . - Feet per minute GRA mg/M3 - General room atmosphere - Milligrams per cubic meter of air mppcf " - -- - Million particles per cubic foot of air. - NIOSH - approved- Approved by the National Institute for Occupational Safety and Health OBZ - ppm ' Operator's breathing zone " Parts per million by volume PS - Personal sample . TLV Ventilation. ~ Threshold limit value for an 8-hour daily exposure \` - The terms ventilated, ventilating, or exhaust . imply the use o.f mechanical means 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 Ik 1 k k or less Sound level dBA 90 92 95 97 100 102 105 no 115 SPNY 001296 X X c 0) in H r- >t \ X3 G r| ft O 1 O CO QJ 3, tn A rn r4 gE 4 \ ft ftl N W u 0) X ft < g < Eh fO CM >< ft ft Eh < > Q< <53 ft Eh r" CD lti X X CD i 3U a CN <D a: =#= CO g G o co 3 CD Cl tn 3 O Q t-4 cn in cn C" co CD -4 i iI U au CN CN CN =tt= =8= 48 CO CO CO g gg G -H CN X 00 in 14 in u> (0 i i g Uu CN CN G X 48 48 o CO CO t) g g NN CO OQ oO N CO O N N to N (0 O ft ft oO (*) C o n ce n tra tio n in excess o f TLV. * < CO Cl S CO Mo ft Eh CO w ft CO < OS g o ft ft Hi CM N* CQ H a) 'fr U a) e c ro ft <J o c CD CD **! 44 0) fMt CC U C r* O H CO * 00 r~ o in o cn d) i4 tn <d ID CN co x E ft tn 10 ft Q ft H co a> O Tf SX 3 o H CD 3 1-t 0) u tn CD X CD a) <l) <3 tn fWt ' a 0) i-c CN -4 4c: x 'O' o <-4 <Z Ho fit CO XI =fc r-~ ID i 4-1 W CN E I H H cc 3E I CJ S 3 1-4 , 4-1 s CO 0 ft 0) o CL CD c o 0) Q (1) 1a4; 4O-i X > -H 14 TO CO CQ G -H -i-- 0) a a 14 TO cn co fHt Xco o x CM l 4 xw u CL CD W Cl) Q 0) "a > o X ft N co co ft CO Gw -i4 X ft < 4c 4c cn ft 'O' cn * . CN cn -Xp- 14 o 0) X c co --4 X ID u CN 10 E X a I ft d). a) a tn| a 3 E G co co H x CQ CO. X CO CO -H 3 14 fGt ft ft E u d) X 4-> CD 4-1 a CO s CD 3 14 a 4-1 CD c tn go co c u i-i -H fH a> a CD 0 E CD g CD 0) 4f=t H (0 H CO ft ft a ft o& <-> < ft o 3 OO QW 2ft <d jj Eh .-4 U ,4 ft W oo ft U Eh o y -4 h g_ o cn P3 > CO XH O *rl Eh < CD E ,,E CD CD (E0 cd cn CD 0 -d* C.N. * cTi r-l 01 H in 4) r4-1 ID o\ CN 0 x' a rtJ Cl1 'D a E a; fS H CrN- 00 r- t" ID m cn 00 r- o E S i--CO( co in cEo oo nD" cn in o <n CN 0) O '--( m cn r-C i-t E ro co co cn in cn o cn 1-4 EEEE co co co co Otn orof tn tn cn -d O X O i--1 '--I t--{ m ID oo <n SPNY 001297 N *--l pH < co O ga HX BH Q 1a B Od dd B< O' c 0) m rH r- > \X G Nf 3 BO t to a, o <d in .-h Q A \ cn * H SE \ O B N to VI a) s . -H < *P tn w bp I < fr* a aH a; U JH a v & o t> N cn o m in 0 in r- lO NIDj1 P- CN 1 imI a u i CJ CN CN U CN CN 4fc =8= 4E CO CO 4fc co S S CO S f N CS3 N CO CO co OOoO ID CN IDI O CN * CO S N CO O co gEh CO B s ft! S O Rj B 1-3 CN -1P0 +> d CO E (0 3H a 4-> G o> o cu H rH 0) d CO E3 s: (0 JZ 01 d 9* B H CO H CO B B 1 B O U js n,i O s Oo o M O o CO Oo S3 4J H *--t DO Eh vt o * co cn * <n -u- 13 <D 5H * O' Cl) m to -P cn E *-i * 3 -rl m QB * r* in * m in cn I VI (0 o VI JZ S 4J d i r- a) * CN Q -P I c dB os ft V c u o ,C CO *rl G -H co O. CO a) VI d X O pH B0 m O' O' to co *GH GH HQ) G to co o i--VI CO H to o >0 3Rc O U w T3 a -oP G3 O 3VI O pH d rH (0 E "H dO E OU S3 m O' i p- G # H 4J E d H O JZ O O v IW to VI d 4J rH d pH 0) -H QH o CO -P 3 H W0) ,cCr .c E a J= CO H CO o H rH VI H -H toa -r- T3 d -H d 0) G pH +J G +J -H O CO H 10 B to 5 S BH B n S O in o' 3=c ra s o -P U O *H Eh < EE <0 CO co e' en if * OH in co ufl) 0) nt)4J LQH Co -B O p<N r- CN CO 01 P- H CN O' ID CN g d 6 cm H-gj E d E d E d E d o co o rH rH P- cn o pH O pH O rH cn CN ho* CN 'O' CN Nf cn cn E co r'0' O' pH d E cn O' NT CN r- CN ri II C_) 0 O CN CN CN =#: =fr =fr CO CO CO S 1 N NN CO CO CO o oo O' * O' CN o ------- er H t VI O' +J G CO CN H VI JC U 0) 10 rH E co H rH 10 # TS O o G -P E I--I 3 VI in O Vi O 4H in 8. rH . a) o o O' VI SH -P G d H O E X G f' VI o (0 TJ o rH S3 m m oo o K VI -H S.6 do Do co CO rH o CN O' rCN CN CN EE dd co CN 0,0 ** 4* CN 'O' E 10 m Ci--NI \ IN (*) c o n c e n tra tio n in excess o f TLV 00 SPNY00 298 I (N I ,G p Cn G 0) in p r- >. \ *3 C 't 3 -P PO i m a, o o) in ^Q a p .--I 3 ^E Q CO 0 p tO 0 aa <~^ i e* m .* p 0 E CM 0* VO I o CM 48 CO 3 tO CQ O 05 CM CM II cj CJ CM CM 48 48 CQ CQ S3, 3 to to CQ PQ OO ro CM d l- ID in CM CM 00 ID \D ID CM p in i I IIi CJ CJ CJ u CJ CM CM CM CM CM 48 48 48 =8= # CQ CQ CQ CQ CQ 3 3 3 3 3 to OQ O p r~ CM in D ID Ii CJ CJ CM CM # =18 CQ CQ 3 3 Jhi < CO Q 2 H Q O a, u* tu s O 0* hi ^ <M CQ P 0 |rQ H 4fa o 2 P I0 .g CQ n" c o *r! P 00 o H' H c 48 P hi p ,,0 Qj *0 H C P -P PP co o 00 in <D *cf * r~~ m ID ID CM ^0T P GG P a o <j) m OP 0 48j P P 0Qj 0 p G a.PO JZ P P d0 CQ O a G od -P TO A -o G P o p rH 0 0 0> to c X 0 ' p P Ai GCp P -P oj tt P 0 to O P 0 '0O joa P CQ P ,Q o P0 a * P0 CM % 0E 05 IX CQ P 0s pE PoP 0 pex P P p PO 1 o .C 0 CQ T5 CQ -- * TO 'Cf CO I eU a cri r* p i 01 --0I P i a CQ =fr| G *P 0 *P p 48 co 0 CO co u g (Q 0 0p U o ap p IX G p ^o O JZ p0 CQ --' cio ( (*) C o n c e n tra tio n in excess o f TLV P0 ,,Cu XC>Q E (0 3a 4wJ vc 3 do 0J-l -CH CJ aE xa *0 0 E0 3 (0 jz 0 Oi <--I H 0 g eo CO *0 to P 0 * to M CO I 4 (X O U < Oo *S* oP o0 C 4_> E- co O in H CM o CM CM 0" CM 00 CM o E I S IHj 0 E 0 0 05 CM in p Tf O ^ 05 m in in O ** ** * II cn P <* 05 in t-' \ co P \ CM aE Ea 0tn5 00 i* * p^ in r- \ CM Ea EQJ aa o o in CM P i-t in CM 't co m in r- CM P1 m ID r-* co CM CM CM CM CM 05 o CM ro SPNY 001 299 X P cn c 3 tn r- >1 \^ 3 rH O j o 0) 3. ID i--i P A \ cn * rH se - ato P 0- HS >< < < to CO P O s fa S w cn H P *H < g 1 P fa aO co P w fCaD CU fa Eu < CO W CO p *d >i P< os' So <p P m P a v] 3P a P 4) _ c G tn o ca PH i iH L CO x *4 cn cu B H n w j p o cj .c P o H 3 t( q] oMQ offi h i---Pt OETJ u U (0 co cn p 1? g in 1 CJ CN cxi # p s i N O rH co cn ID CJ CM # co i N EQ O cn r- o CM I % W E CD cn in i CJ CN =fr p E 1 il SI N o os s o 00 CN CN cr. CN a> CN in <0 rH ID ii1 j CJ CJ u cj CN CM CN CM # % =fr # pP CO ss s i1lI NN N P CD m OOo tn P CM o cn c * rH * * cn G ro * CN p* rH O in * CN <n CN p4 r*> H c o tn rH o o o o t> rH om c oX 1 U G o G -H cn O CO H * rH a H= -P p i -rH c ao c o Pt Jj tc rj c -H g 4-> 0 a -H JJ u JJ fa -H 0 to g H rH -P 0P O p tO 0 rH m i ro 5H X to rH c *r! p c o H 4J O u. tn C H * jj a P31 X to H c -H fa -H G X jj 0 o a. r! to n 4J CXt rH o i -H P o fa 0} to u 3 O 4J H fCfl X w ro H u Qa rH o -P U Xo 'X fa to 0 X fa u ro rH a w CO G 3 0 CD X1 ro VI w 5 VI -H rM u fa 0 X p X p ffi p o p -p > *H p 'O CO p 4J 4J P o A to t-H rH *H p 'O 0 H p O P 3 < o A m fa rH i p * p p rH CJ fa rH a0 A cn to o X p to u 4J a P cu to o 6 pp -P 4J > 4J H VI P0 X n O h c 4CJu *OH 0} -P O (0 -P fa cn -h cCn 10 'H H *p op o fa to o X VY rm CN CM cn rH * o to CM r* n- tn 1 CM o CO ro ro fa in o ID CO o m CM o -P p o H t-l *c E E e & a E to CD ro ro E Qi fa CO CN CM ro H H CD H o rH O * fO i rH o mT CO rH CM r-H o o CO rH CM -a* cn rH cn rH rH cn ro ro o r' o PO II oo rH H ro p GO iH Oo iH rH g CD CN CO in <. * oo rH rH ro CM Tt mi* in * oo in in r-- r* + \ \ to CN cn t z z z r 2 o i--i rH \\ CN <N o JQ a fO p <L rP o L e i--i ro <N ro ro ro ''t ro tn ro tD ro rr*> CD ro <T ro o SPNY 001300 (*) C o n c e n tra tio n in excess o f TLV i mT f xz p Cn C in raH) r" >1 \ rH ao3: -cH i to a. o 0m ^ A cn . rH g \E Q ca w M JE* -2H < - 44 <a <ea< ,,N M iJ b* < > g% * 0) cn APE 0 CD cn i e 0 U CN X =fr 01 S N EG o cn CTi ID ID cn m it uU CN CN # oi *01 S 'g i ISI CQ O rH Eh <01 . o a H >G XH Q 1 aW o CL CL CL Cl < 03 oEh tfi Ed CC a OS' g o &, J CN p 0 p CL 01 0 3P CL p 0. Gro P Cn -GH oG O rgQ 7C*L <CUO E to S 0CO ,CCL M 3 Q O nj G O a p CL VI H W 1 U xz < Ip -p rH Cl ECpL O 3 OO o oO EG pQ) 4J O o EG CO O P R r-H CJ CO * * * P CD rH Ol 0 O cn ro A ft G C * * Cl U CN * r-ft r~ CN 00 <--I at rH a 6 0to 0 m c o r! P iop 0 p 0 p e p o (0 m O in m o m o -p p O -P E* < E cl E a E a q g cl g a iTJ f| rH CN CN CO CN n* rj- o O CN CN OJ cm cn cn cn in 0 r-~ -P \ co cn Q CN o a fOTO <L H a fx>t < n a; rH < CN i<n l in SPNY 001301 (*) C o n c e n tra tio n in excess o f TLV in r* \ o 7 ^ non 0 to s \ Q d) Cn ta Q E N >H `m Sa < a eh o < f/j pu ra j Eh 3 > a< <^ *G Eh OJ < U1 pO aa H vG x H 1Q a ow aa aa < OS oCu s Go d> G 4J -p a p 4-1 o to S o Q _c Q g5o E-t > E* w9 r- n a: p G m vo i u OJ d) a * 01 X G O to (0 iG cr> 3 o a in (--1 in m r- 00 vo 1 tI tj 0 a OJ OJ OJ * CO 88 01 8018 X aX G H +> p ffl S G X o NN CQ m Oo fNfl N (Q OO N m o 0) U G soP \ C EH &C E t> h* 8fc 0). c to O a) *f! P P a G CX O0 r-l ta T- - p P (0 to O o *U Q -H G P ^ VO E -P ax g O3 (0 O -H 1 OJ p 3P 5 I u P tjl P P d> p ^ (1) CU G O cu * (X fl) -t a a fcj tJJ GX (0 aEs . +cju a> Q x to H G *H Ui n S. o fp > 10 P P O HC <T> --1 OJ VO 71 6 a) E H Eh io VO P *4 <7v m E io g ci o^ o..j o OV iH Ol CN 00 00 O' H E E <o <0 --i invT rH (Tv i--I E g E <0 io (Tv m in oio omo fN * m ov O 4--I CTl ii----i| <D O (0 p T" (0 P $ * 4J a 8 .c in -H G -H fc| r- vo E <0 10 CD tmo in O (Ti iH in 0) r- P 10 a OJ OJ CO in m vo ij a tj OJ CM =8= 88 oi Xa NN nm oo a) o (0 p Eh -r-tr GO d) P X -5 X l Xu f vo OJ J-> a (0 E X a I |G <t r- 8 d) 88 > Q S, JG a . CO to to H C eS -H Pvi H *H h to d in oo tTi i" r-J o "FT re* GG m oo in m O H* m ^ O H o '--i fp i-H D m VO O' CO (T> O SPNY 001302 C o n ce n tra tio n in excess o f TLV in r- >ip oX Z f--1 3 \ o 01 mm s Q Q* in p WZ o tS5 >< G < *4 til P* 5M 1 a t* CN < co Q a H G? O & Jm w < Z < Z P CM iJ 4J P CM -P MU TGO E P3 G. (0 01 ZG __ -P G O -h 4-> Q. P O Oi n -H E 0 P < 2a S2 tBo to H S CO S3 -0t3 1-4 H oO L> ,, s < -W sa CM O ax 9 ffi -P m 3 W O O w E* R |-P 4-> a; P p (0 fl a! c .g o b m m 'O* VD n O' 0 r- ID r-~ m vo m CM 1 ill CM CD I ri* CM Cf CN p (l u u u c_> <N CM CM. CM CJ CM o <N ua CM CM =fc * % % * 4fc CO CO CO CO ZZZZ CO Z CO Z CO CO ZZ N (SJ N N N N N N N gm o m o m o m o CQ O CQ O CQ O 13 W O' 4-> o P E *rl p E-t Cm n. ro1--------- P pa rEo x> I CIN co a 4J X E Q p c <3> w o rl ~ 3 41 IB to 4J W -P P (C, P cm o o o > XI P m tQ tn tn 0) 4= G c U H T3 -p P o a 6 GOG0 Cr G Pa P P a +i o Q. p 3 p a p .--I 4J # CL. E p p p Cl. P O P E o a. p E X au O LP & P p a o o V in 3 p x: p P E aX p ta U 00 &.SP *0 T T3 G. 1 3 O 1 p -p p m p CO `GP -P i S Pi 3 Hi P Cm g 4t= . ruo :u pp Em Em 01 G CM P o * -- TS G G P P E P 3 n E p in O p o m a. O o (0 4J P O -P EE ro ro oo r> un ^ P t* * Em O P in it" 4J ro Q CM CO r~ O' < fp CM O' oi VO oo CM iH O ON r- CM CM CM (N CM E a. E a E Cu E Gj CU g EL| ga. ag O 'B1 CO o ^ H P r-' ro O P O P O P ro CM 'B* CM fr CM P1 cm p Er" 'B* 0% f--1 EE cl. a. 00 CM oo ' ** CM Ml" ro rEo m i" "B* CM 0^ H OI in p* \ CM o a ro iJ ra-4 *o r~i <0 C CM in cD ip CD Oi SPNY 001303 (*) C o n ce n tra tio n in excess o f TLV. i CM I m O' \ Xn ox r-l a \ \ 0 Di on to E <D a m Q W i-H NS O a < a in < tn fM4 >< 2 * > <Q <S3 A 1 co a A a a >(; CO Q vaH3 04 4 o a XH < CO a H < a a w t Qo a v3 ae> Eu w a a < co a CO A < a c O a vi az oq <1) v3 -H 4J 4-3 hn a H V4 U-l 4J O (0 fll is E Vt 3 O fit Qi -H EE O tJi O Z,, C "H 4J < " i-t ga B 2 S"5 M (0 I o oc O (0 < n oPk <aU oCm QA Q +> JC -H H? W Q O SC E-* W CM 03 -tf X VO 14 I ID U a 04 <D cq * N m o 't CO 04 m tl uU 04 04 4fc to CO a. Z N m o m in 04 04 CN O' CO VO VO CO CN H in i I1Il u uuuu 04 04 CN 04 04 =fc CO * CO # CO co z5sZ N N N (S3 N m g CQ CQ 03 o OOO on 04 VO I a 04 CO Z N 03 O (*) C o n ce n tra tio n in excess o f TLV *n 3c 'D' in Oo Ee O -fc- T q M V -H VI a> i A to q `H 3-1 a o TO H a a) to o 4J O q H o> tn ID H* i--1 CJ I <D 4= OS 03 e *o1 A tC CJ H, i--l q# 6Hi H ,, A 4-3 H q H fci Cl -h 0) a< a) o A CO <d Pi O V4 -H q q VI o n O VI ID ID 4-> w vi O H *H & a fci H QJ Vi T3 O 4-3 >4 03 < <0 .Q CO A VI (0 * tn 03 tn 04 o <* o m1 a* 04 E iH u & 4f= H 03 a H i--I a q E a) -h Cn H *m I VI <D VI u 4-> CO O t c0q3 ctoo a o *c ta o to <r> to 0) 4J r- \ CM ID 04 O 04 h (0 in to O t--i 04 CO co in CO 00 m 04 04 o on 't m 04 04 04 "S" ID Tt* cn in "H <T\ rH E ft TT 71 10 04 gig (0 O ID (Tv to m EE Cl a cti in 't m o tn 03 co tn LO O ti r--I in o 03 iiH-l * H * ^ i--i i--i t--i i--i * cn o H *h H in tn r* O' \\ on iH i0--4I \\ 04 04 Icm %a O VO 04 r-4 4* l 04 'D* I on 1 o a ^<-1L' a ,i(Q-D3 'C ETO 03 m in in O' CO <T3 (N 04 CN 04 04 04 04 SPNY 001304 PPG ~ LIN D S A Y APPENDIX NO. 2 ANALYSES OF A IR SAMPLES irn*' 2 * -2 \3\ ^m 0oi H1 ..O in Q. s < E* to M g Q IS e5 2 use CM 0 P t-Q -H rH p *H CM Qj C0T0l t" in COM U cm I i CD 4CtD= SS 1i N N * CQ O CQ O 2 u oi CM VO O CM . # Ul S 1 N CQ O rHCO t CUM #ui S N CD O CM CM VID U CM =fr w S sN so * O r-~ CM E rH--*i o rH* ac: U M rH CQ E u . M Em VD O Tf pH* * rH n * CCMO e Tol p 1aC o -----37 Tf w ao 05 E 4hJ co m a * E as. w u a; wa +> p u E h x o rM o ,c O i--i cq OS "H 05 O -h P pes Cr *5H Pp O 03 MroH <t? (Wtf AU!l h ch fa *0H 4i O a e -H P CL 9Q1 J0Z3 H H Cn SH Cr> X u Dj 1 ai 3 o ,c w rH H oa . +J u oa X eo Pa o 05 ErM H O 05 0 -H p p 03 tr -H P H O c tJ3! au; nj Oi 03 3 o X W s oE o 05 rH JH a u 1 W co H H * H rH C # i--! P U 0 E H i--I IoD Qi hEi rH H JuZ W 0 03 U U a *D CTi O(DUGH O H 1 --l a o JtZ P > -O p -H P * e JZ ui M -H HP A5 ` W O JH 1 XW poE 3 < CQ T3 -- < a: u m H a E a o PE P P P -0C 01 ro S *-' -H . o > CTt oco -p u r' CmN rCcHMn O *H trt C o 1 O' CM* 1C0' o CM m VD &g| QEi PE, O to rH rH E_ CO E VTOf rH tn O --1 o ro CO CM Tf CTl rH i E H CCNl* d VD ^ HrH E OCM o rH E CTMf o rH E CC*OO CTi EQi rrHH1* ro cro- * o OE rEOl CO OO H rH oOinl VD OCO IT fo ID CO rH Tf * t* O' o rH rH T l" CO CM ro in * oo PID Q mr\ CrHM \CM in r* \CO : " rH \CM 2 t 5 O 55 AJJ H a E*3 HD -H O ro rmH <CNO rcoo Trof rmo 1CO0 P' co CD CO CTi co SPNY 001305 (*) C o n ce n tra tio n in excess o f TLV in r\ >iro 0 ,* rH 3 \ \ O Qi 01 6 S* in W N 5j a <-- fa TO eo <T\ aM: ra m i a cn ID co i u ffs iO ro l U Ol CO co f U ra (N CM CM CM *CO =8= CO # to # to SSSX NN ffl O to w pa >0 <CO o QaHt a x pH < K P O b *3 Ctf a < ob G rpa aX O -H p rH p Pa H CM 4-1 po ra Pro ra A Gro a p CJ A sra aa o Oi p ** B G H raH < H > ra3 ra 0) M W WH p p P1* O O 0) < M b O aa) a o Q O p p oa X *rl X Eh Eh uU % * H ro tTl c t) 0c 40HJ1 au) eo ra ce; -r! P H 1C 10 CJ c OrH a<0 * * * A! rH r-l i-) m ro r-~ Gra iH m a S--i Qj ra i--i CM 1ra0 r-l =#= E <ra0 i--l # (r0a ppo ra ajh Xo rH m P0) p p po Xra Ou EM po p 40H) +CDl M a pM ao; Po 4-1 <D OP Pa p x po op H 0} i--i w m H CQ -- E op 4-1 ra ap xoH m in rH in H o CM o ro o ro o co o pto u O Sr* < <0 CM ra TT J a oj ga 04 tn tn r-t rH CM CM 00 cm ra* ^ o O CM oo CM CM CM to co m tn 4) r- Pra co Q in r- \ rrHo \ CM o a JQ ro a, r-l ao e rj- > <<< CM CO tn co ID CO i in i SPNY 001306 (*) C o n c e n tra tio n in excess o f TLV FPG ~ LINDSAY APPENDIX NO, 3 ANALYSES OF NOISE EXPOSURES METER: WEIGHTING: General Radio Sound Level Meter "A" weighting Network MICROPHONE: GRC 1560-2131 DATE: ANALYST: SOUND LEVEL CALIBRATOR: 2/11-13/75 M. D. Gidley 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 b. idlinq 98 4.5 84 3.5 2.66 8+ - 2. Abrasive grinder #L-26 a. grinding b. idlinq 3. Multiple drill #F-581 a. drilling b. air release 98 ' 88 92 94 4.5 3.5 6.94 1.06 2.66 8+ 6 4.5 -- 1.38 4. Drill #L-19 a. operating b. background 5. Drill press #L-17 6. Blok O.D. grinder adj. 98 86 86 3.76 4.24 - 2.66 8+ 8+ NO to Column E-7 a. operating b. background 7. Riveting machine (ser. 96 84 2.246 5.75 3 .5 8+ NO. 6784) a. operating b. background 8. Riveter #5 9. Paint spray booth - 10. inspection & Packaging adj. to paint spray 92 85 ' 86 98 89 4 4 6 6.5 6.5 6 8+ 8+ 2.66 8+ - booth 11. Shepard Thompson grinder adj. to paint spray boot h a. grinding & paint spra y 97 6.5 b. grinding 96 1.0 c. background 89 0.5 12. Arc King grinder 3 3.5 8+ 2.44 a. grinding b. idling 96 4.6 90 3.4 3.5 8 .17 Ear Pro tection Required Yes Yes Yes Yes No No No Yes NO Yes Yes i -1- SPNY 001307 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 13. Hammond belt grinder a. operating b. background 14. Ross oven - on floor in adi. work area 15. Blok Preform area 16. Blok Press area 17. Backing removal-Reclaim oven a. impact b. background 93 88 88 85 86 98 85 5 3 8 8 8 2 5.5 5.25 8+ 8+ 8+ 8+ 2.66 8+ - Ear Protection Required No No NO NO No (*) Daily Noise Dose is the numeri cal expres sion of th 3 comine d effect of 2 or more periods of noise exposure c t differen t levels . When the sum of the fractions, CC + 12 + In Tl T2 Tn where: C= Actua 1 time of exposure at a sped fic noise level T - Pern issible ex posure t Lme exceeds unity, the mixe< expos ure is cor sidered to be in e <cess of the Threshold Limit Value. -2- SPNY 001308 m? - mpsMr.., \ AgBBKKtS., gftiu .4. jpg* mgtfg. ; Rjamar l;<, i?n -;., 'A. xx&sm 1. Paint spray booto (hooa face) 2. Blok Preform No. 1 (hood ac<ii) . , Blok Profora No. 2 (hood faoe) 4. Paint spray hood in Reclaim Dept, (hood face) 5. Arc King grinder 6. Shepard-Thompson grinder adj, to paint spray booth (duct) 7. Strip finish - grinder #1 8. Strip Finish - grinder 42 9. O.D, grinder - strip finish 10. Drill press #2 (duct) 11. Gardner 123 drill press 43 (duct) 12. Brushing machine (duct) 13. Drill press (duct) 14. Multiple drill ^w-SOl 15. 15. 17. 13. Drill press #L-S (duct) Chaafex #->22 (hood face) Abrasive sow #D-26 (open trunk) Abrasive saw #&-2? >. Drill Q. Drill I. Drill ?. Drill press L-7 >. .Multiple drill (rear take-off) VELOCITY -(IJ&U,460 2500 2500 CuMMkts 170 So pitot openings Clean filters regularly, Provide circled & numbered orifices .0000 No pitot opening Provide cir orifice No pitot opening Provide cir orifice No pitot open Provide circ ings orifices ,6000 i ** ,6000 2100 Damper par*4-1**' dosed, >6000 HO pitot opening ^y<^rX<jo circled & nuta^ orifice 1 sd >6000 >2500 ;260 at 6" Provide exhaust hoo from trunk face 1100 at 6* Provide exhaust bo* from open enclosure hood faoe 2400 1500 Provide exhaust tv replace open ends ' >6000 Provide exhaust ) i replace open tru*t -*i 6000 Provide exhaust o4 replace open trt a ^ >6000 -1- SPNY 001309 i ' > /-. * FPG ~ LINDSAY AfPflgttS. Sff... D AMD DUCT VLLOCITXSS FEBRUARY 13, ld75 24. Do-All Sephyi 25. aiaaond licit grinder 26. 27. 23. Upper Compounding weigh scale (powders) a. at hood face h. at pitot opening #40 Upper caropounding-asbestos weigh ucule hood (hood face) Lower ccxrpoun'Jing-ruhbor mill canopy hood a. hood face b. pitot opening in duct VELOCITY .,.J/IttL. NO pitot opening No pitot openings 500 2400 700 100 500 eQMKa,VT Provide circled & number orifice Provide circled & numberorifices inadequate picbup Low flowrate Redesign h hood end Increase velocities -2SPNY 001310 HOOD DESIGN DATA 4-17 DISTRIBUTION BY BAFFLES See Fig. 4-t6 LONG BOOTHS - DISTRIBUTION BY MULTIPLE TAKE-OFFS ami TAPERS BOOTH- TYPE HOODS (Same principle apply to canopy type) --Slot velocity TQQQ fpm or higher. DISTRIBUTION BY SPLITTER VANES DISTRIBUTION BY SLOT (or baffles} DISTRIBUTION BY TAPER __,, SIDE-DRAFT & SUSPENDED HOODS AMERICAN CCPfERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS PRINCIPLES OF MANIFOLD DESIGN DATE 1-64 1 Fig. 4-/3 SPNY 001311 6-36 INDUSTRIAL. VENTILATION ELBOW RADIUS E/bows should be Bor 21/2 diameters centerline radius except where space does notpermit. Keep AR() high in using rectangular duct Vm * Minimum transport velocity. A rCross section area. PROPER DUCT SIZE Size the duct to hold the selected transport velocity orhigher. . , AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS PRINCIPLES OF DUCT DESIGN DATE 1-66 Fio. 6-19 SPNY 001312 1 1 I DESIGN PROCEDURE 6-37 Bad 3 / inch change in diameter 2 Bod Branches should enter at gradualexpansions and at an angle of30or less (preferred) to 45 ifnecessary. Fair BRANCH ENTRY Bad Branches should not enter directly opposite each other. , AMERICAN. CONFERENCE OF . GOVERNMENTAL INDUSTRIAL HYGIENISTS PRINCIPLES OF DUCT DESIGN DATE 7=66 r"l Fig. 6-20 SPNY 001313 DESIGN PROCEDURE DUCT ENLARGEMENT / inch change in diameter to every 5 inches in length GOOD DUCT CONTRACTION BAD 6-39 l inch change in diameter to every 5 inches in length. GOOD BAD STACKHEAD % 2000 I v 2400 /7---S\ /s !2 to 3000 n p e *! 4 e o i i aV RIGHT Vertical discharge cap throws upword where dilution will take place. WEATHER CAP WRONG Defecting weother cap discharges downward. AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS PRINCIPLES OF DUCT DESIGN date 9-66 1 Fig. 6-22 SPNY 001314 * t' } July la, 1 )75 fir. P. C. Milner Plant Manager FPO * Lindsay subject industrial Hygiene Survey Report of 2/10-14/75 and Status Letter noting your general eomsaant on the status letter of July 0, 1975, it is not unusual that significant variations in coo perative airborne asbestos levels would occur fron cue year to the next, especially at inadequately vmtilaced machines where control is minimal. Compering the 1974 end 1975 reports, major variations occurred only at toe Bldt Peefere units during the collection of short term tepee, the short, ten samples were collected at Blok Preform BP* 1 sue day Inter than the longer term samples collected s Blok Preform Bo. 2. During the sampling at Blok Preform bo. 2. it was the only _ machine operating, the following day bth Preform units were operating during the collection of the thort term samples. This tasty account for sows of the increne. Although specu lative at thin point, other factors cold have included variations in anklent temperature, presure, and/or relative humidity, temporary changes in make ujair supply, hood flow rate fluctuations. condition and type if nix. work techniques, height of the operator (physical proxnity to the source of contamination). machine adjustment, ad/or contributory fiber encroachment frost adjacent operation* r.e. Blok Press, strip Finish, etc. The short term samples were collects during a period of peak work activity to determine If ssbeaS* concentrations exceeded the established fStAlffy of lOfibers per milliliter greater than 5 microns in length. This list is part of the Ontario standard thick prohibits any excurons above the 10 fiber level. as indicated in the report, all th? consecutive short term samples at 27.98 mgAl3. 17.31 mg/& and 27.49 rng/B3 exceeded the Ceiling Limit. Considering tfe conditions existent at the time from a subjective viewpoint, t is likely that continued short term sampling throughout ti*d*y would have yielded a distributed average 3 hour expose* level of similar high SPNY 00131$ Mr. P. C. Milner July 16. 1*75 magnitude which would have produce0 :i va 1-re for comparison to the 2 fiber limit * However, this wus not done o.ince nothing useful could be obtained from verification of obvious gross contamination. Please let me V.now if you have any further questions. MDGtEJ CCi c. C, Blackwell, Jr A. a. Borin SP H. Feierabend vr,, Hetherton Nicholson D. K. Rennie G* L. Rooine R. Livingston M. /^ M. David Gidley, Hanaoe^ Industrial Hygiene w i^rvironmantal control SPNY 001316