Document G622xEvenMGBDgw0LYMGb7557

Decem ber 1 7 , 1964 Mr* J . A* Os b o r n e , P e r s o n n e l Ma n age r The Am e ric a n St a n d a r d Company 2 6 2 0 Co o k S t r e e t Ci n c i n n a t i , Oh io 45 214 Be ar Mr. Os b o rn e : We a r e p l e a s e d t o s u b m it t h r e e s i g n e d c o p i e s o f o u r r e p o r t d e s c r i b i n g th e r e s u l t s o b t a in e d fro m th e a n a l y s e s o f sam ples c o lle c te d in co n n e ctio n w ith the a ir p o llu t i o n s u r v e y c o n d u c te d in yo u r p l a n t on No ve m be r 1 1 , 1 9 6 4 . We b e l i e v e t h e r e p o r t i s s e l f - e x p l a n a t o r y , and t r u s t th a t i t m eets your n e e d s . How e ve r, i f you have any q u e s tio n s co n ce rn in g any phase o f the w ork, p le as e le t us kn o w , an d we w i l l do o u r b e s t t o an s w e r th e m . Ou r s t a t e m e n t , c o v e r i n g t h e c h a r g e s f o r c o n d u c t i n g t h e s u rv e y , a n a ly z in g th e sam p le s , and w ritin g the r e p o r t, is a ls o e n clo se d . Sin ce re ly yo urs, JC:e g m En clo s u re s c c : D r . Ro b e r t A* Ke ho e Mr* L* J* S c h a f e r J . Ch o la k D ir e c to r , D iv is io n o f In d u s tria l Hygie ne Te chnology K 0005356 f P X&n t * AsaHrietu* 8tn<&s.r# Cin e in o R U , OUe W l * 2 1 2 $ Cci f t , t fcafc jf V i s i t i Kv*tMsr 1 1 , 3!5r>fi Paree o f V is it - ?<& 4 *t r fe lf> * th n o t a n t o f t h e s t Ju fc i : f th e fcae ce hare by ilic a -h a a r .i *: p a r t i c u l a t e t a t t r &&0 fej? 1 **6 p r nfcafc i v-t o f Ka ig* *t * J* A, c h o r n e , P r *m X Pliant ^ijf V: le n t "a , Im *** fo w n rj <tfsi;a^* in th e east in *: o f p l c t lr # ; flKfe re i'. Prcccd u r* . Saw p lre o f p *rfc le a }&t* s s n tte r w r s re ise r# ft fr o r t h * s i r hy fchr- o p o f o * n f tv o s air-n lin t t e c h n i c *, 4if:niJl2Ur o feb fit t ic t a r c in e t te r , fl& c t r o & t u t t e c r c c l p l t a fc o r * v e rs *<5 t o a l i a s i fco b* usus? fo r fch de fco m iftafcio o f fcb* e u ft t t t i t la s o f p ?rticu lfcfc r a t t c r fi!Hs o f tH c o n c e n t ra t * e o X#?d in tna a i r Air-bo r* 4usfc t i > be a n *!?* ! fo r i t s c o n t e n t o f fo e s c r y Va ll i a s i l i c a wat remove <S fre e , th$ n l r 'ey St a b l e s ftich Ve lari S'&KpXre* 5af 1 r1 re tu rn *! t o the* 'n a tte rin g t&b n ra te r? ar. ?*es l fs t t y ctim tarti ** fcfcos* fie g u l t a The t &t M t-s t a c l e v a la c f th e ce ne -* r a t io n o f 1 ^ i n fci# s i r , t h e w iw |# m c f p a r t i d e a i n k t I r In &i IXio tt o f p a r t i e l p e r cu M-e fo o t o f s i r , and th e c o n te n t KF 0005357  f f r e t c r i s t a l l i n : t i t e a In fr o a c f d u s * IXe e t e e t t* / nutsber f lo c a tio n in the fe y n iry , ' 1?t g e n s i o n Fr o u fche . s p c c t c f t h c p a t e n t l a 1 h < *a r <?f s l l t a o t i . * t b e % h v9 n l i i s s l t f o r r - r t i t t i * t e ' a e t t r e$R a p o n i t t f c o n t e n t e f ^ s i r t g , r *i i # e a l t flq fc o a f r o * a fo rs ttiljk < io o rb e 4 t n tfcc c w r r o Rt l l c t f *T'.re i l4 t i s s l t V a l u t f e r sa s td o ^te fct tt je %&%ti An u &l fCe e t ift f, o r tfce m o rt** Co n f * re ne o f Oo v e rn s Nm ta l I n d u s t r i e l ^ l c n t e -t a fc e ld k p r i 'l ?5 ** i >f t ,, ji- ' tn Ph tlo Otin lii* fb t fo rn a i l i t . .t lllo n f p s r t t c X t s i,?er u bi f o t c-f i r { # !s ft *^ 3 ** h i"r>. % s i y a r t s + '!> * The c o n te r,t o f fr e o crystaXI..m v e t l l e e ( c u a r t a ) in t h dusvts vari e * fro w 13 h e r n i a t th e sn<l s e l l e r &m; e l*m in * t o S p^r cumt in t r e j*cX<Un# w , fh * fcfcre ahol Ili it v a lu e rers c a l* n s \ k s |>? * W* * whfift tfe 3fc c o n t e i n c 13- n ** e *n i c tfto o *t e m tlno< Kl p e r c e n t tn? iia s t c o n t a tnoS p r t n t < qo s r t g* rr, *#; ;/ 1 *- Wi,f. c u &r t ***t e . *_ -i' ap r ? t . 3 vh e n q u a r t tti 3* ?* >J-i! . r-v-Af*VO"J vhci? tb # Ottct c o o t a i n c ^ 75 r*r it f q u a r t s 8 K.fty b crit fro ' t 'ne tftb l tfce . thr**fe < i U s d t . SS t1*u*:i l e u l t e d . e r# *e e e *l a t tfce * to fe l i*Xf V h t t l t-r &to " t 5 5 .^ a s ttspsnf'etl t 5 *1 p rif***) * t t h * t o r e .o u 1 e r ( T an cens*a re c fco $*5 o r 3*3- a p p ft *3 ) * 4% th t s o l in s a c h in e (T*% a * c \xt $&**< t 3 *1 **<ppft,") t &n, t tfc* ba:rottt c fe r a -t l o ( 2 3 *0 a* Iare4 t o 3 .3 s r fr fe *^ ) * A $ ! o r fche <tu*t a t tfc# -' * 0005358 3 - o r a l l e r tras n e t i* ll# ctfis 4 f a r a n l y a i t f o r i t s <2< m t n t e f q u a r t ** b w t jffr o ft o fe s ftrv u Mw S i a s a *:# t fc a t s h m s t i n fche a i r u rre u n fiin K * M grantt. lm s e&espofta# e t e & s t * e f 5 0 p e r n i e f p u re &a<s* Th e n uttfe e rt e f p a r t i e l * f i t t e u t i e f t t t / i r i n t h e e r e r e o * # fi in t h * e*nir .^ a r e . v e r v e l l t t l t h i u t h e l i c i t a nssifie re fi *? i n e *c u > fttic r s *l a p a u r t e ast o n t t t t l f l r r ht e f q u e r t * The- u o r-- t i t r a t i o n e f fi u s t i n tfe p a t t e r n afeep v s * X*e v r j' l e * * e%? r e l s t t i v e l y a r ^ an fi *>enrp1 rat*l e fS&e rs c f hlay ve r e c i.n t fc i a d u s t by 'sjirosiOv i c e r u s i si.-^ r*-.*. Th le v a i e f th * re e ntrat i e n o f 1* 4 ln th fte re l e fh a r e a * o o e *, 4 v i t h tfce fu r n s o i , co u rir,,-; * a r a s h. frUi ie re 1 %*.s e f o *r e * i l i e r * v-e r e u h l e e v t e r e f &i r * tih Ch i s e n ?,,$* t fee & t - t v i f i i l a r y u r.fir t-i c n # 4 t i e n e f n e rs &l ^ r a t i o n 1rs t h e l<3 uir.i' i n d u t r i s * Th S ne-*trai i,1 o s f X-&- i n th e a i r ci* ti-.*e fu r n a c e hre .x 4n3 i n t i fi t <$ f thi* i n w jle b e^ifcii-:^ :K a v r V' V? i fi, ?:-c u r ? fe r* fo u r t e f t v e t i r e s jil^ h e r thsm th re aivne e thre ssi 1 3 k i t v u l m * 1: .n a n t r a t io n n f l e a t l i n tU e s i r tn cre a - a s ifc* fiis tMS fr th fu s a s s e f e r i*t$ avis b i n c r e s t e fi * Ai a is tan e f 3 9 f r e t frw ?; ih fu r o a e e s * # nfi 2 f e e t fre - ihrt i n s u l i n e i & t t o n * t h e a i r 's n t a i n a fi 0 *3 ? s *iX1 4 fe r; f le n fi p e r eut t e m u te r f a i r ; i n t # shake^o-ui r **# i h e e o n c e n t r - t i e r s o f 1 *4 a 0 *fe 3 t r l l l i g r * e f l a fi p e r e u t l e e<ter e f i r s i n t h e c le a fe i ;? r e e &# <utr t h fr i n d i n g r e r a t i e r * s t i l l f e r t h e r fre rn th fu r s n t m , t h e m e e n t r a t l e e f e a d UMf l a i a l e h e d t e 0 *1 2 m i g r e * >r e u t l e ts e ta r e f a i r * 0005359 Yh* fi n d i n g * w ith re a p e e t t th ttre a p h e rie p o llu ta n ts , aa report! in the ta b le , e rr re p re s e n tative o n ly o f p ratio ns eonthefceh o n th e hay o f t h i s s u r v e y f an e a y n o t be regard* a s he p l o t in#? c o n d i t i o n s `t h a t ay r e s u l t t rt m chain, i n o p e r a t i o n s o r r a t e s o f pro ho o t io n * Froi th e Ke t t e r i n g Lfihe rafco ry in t h e &*p*rtab*nt o f P r e v e n t iv e Ke h i e i n e m3 In d u s t r i a l h e a lt h # Co l l e g e o f H c Oi c i n e , U n i v e r s i t y o f Ci n c i n n a t i Ci n c i n n a t i Ohio vorfc and Kap&rt !>? %*# Ja s t># F io r e s * 3<u&* L* *1* S c h a f e r , .) Arn ro ve h f fte te rfe ' PI r e cto r if>fi , ' i * f Pate s fo cgQfre r .17 19^^ K'E' 0005300 lumbers o f P a r t i c l e s , P e r ce n t a g e s o f "r o e .....a nd h e v c ls ` o f Cor .e e n Fr ^ t i'Kn o f j,n - 0 i p ' f in -t h e fo u n d r y o f th- m a rico n " r.r' aro ll lc:n in r'r r t ' c u .1 r : r ''i; rO , .?"t . ' r.`j on ..r v ;" 11 1 An a lysis h'urber I.o c a t 5or. o f Sa m p le r Time o f F r * r l i r r ; '4A-6066 At b r e a t h in g zon e o f t h e o p e r a to r s a t the Ta b le Bla s t Th e e la b r a to r 64A-6G67 h e a r t h e T a b le B la s t Th e e la n r a to r ?:h l 9 :3 0 rl V..: 64A-6069 At b r e a t h in g zon e o f t h e o p e r 1 0 :0 0 0. TTf a t o r a t th e cor e sand m u lle r 64A-6070 At b r e a t h in g zon e o f t h e o p e r a t o r a t th e m old in g sand m u lle r 1 0 :2 4 a .m . 64A--6068 Ne a r t h e m o ld in g sa n d m u lle r 9 :4 1 a .m . 64A-6073 At b r e a t h in g zon e o f t h e o p e r 1 1 :0 0 a . tr.. a t o r w h ile p r e s s in g co r e s 6 4A--60 79 At b r e a t h in g zone o f t h e o p e r a to r s a t the core kn ock-out a r e a , fo llo v:in g th e b akin g op e r a tio n 1 :4 6 p . m. 64A-6074 At b r e a t h in g zon e o f t h e o p e r a t o r a t a m achine in th e ce n t e r o f th e m old in g a r e a 1 1 :0 0 a .m . 64A-6072 In t h e m o ld in g a r e a . 1 0 :2 5 a .m . i6 A-6 0 7 1 \ "V T h ir t y fe e t fr om t h e fu r n a ce a r e a and 20 fe e t fr om t h e p ou r in g s t a t io n 1 1 :0 2 a . rr,. '1 3 * ^ c> r 0^ *'* f ' j 1-1gv ' la t e r r . " ' ' 1 r --' i.l].lo r .r o f ' * Y**t" C*1 r> T ;* Tub in v<ot o f Air ., : *'t . ) hi j*. 5 5 .0 -- i? Ti -- 1 7 .0 1 0 .0 -- S* -- 0 .7 0 .7 ---- 7 .4 -- ` . T9C . . ................. - '4.. *- ':*An a lvs is Number Lo ca t io n o f Sam p ler Time o f S r ).r r r lin m 11l i grams o f Lead Pe r Cu b ic :e te r o f Air : 64A-6076. At b r e a t h in g zon e o f t h e o s e r - 11:30 E\ t v. . ; a t o r w h ile p o u r in g c a s t in g s 0 .7 0 7 64A-6075 In t h e c e n t e r o f t h e fu r n a ce area 1 1 :3 4 a . m. 0.802 ' 64A-6085 In t h e c e n t e r o f t h e fu r n a ce area 3 :0 5 ryv- **--* 0 .9 9 0 64A-6086 - T h ir t y fe e t fr om t h e fu r n a ce a r e a and 20 fe e t fr om t h e p ou r in g s t a t io n 3:06 p .m . 0 .3 7 0 6 U-6 0 7 S At b r e a t h in g zon e o f t h e o p e r a to r s a t the sh ake-ou t a r e a 1:12 p .m . 0 .4 3 0 6 4 A-6 0 S1 At c e n t e r o f t h e c le a n in g a r e a 1:00 p .m . ' -- 64A-6 0 7 7 At b r e a t h in g zon e o f t h e o p e r - a t o r w h ile g r in d in g ca s t in g s 1:18 p .m . 0 .1 1 7 Lillio n s of P a r t icle s Per Cu b ic Fo o t o f Air ( r .n n ft . 3) Si in 23. o' *K 1.8 \ 64A-6080 Ne a r t h e W h e e la b r a t o r s . in t h e cle a n in g area 1 :4 0 p .m . -- 1 .5 6 4 A-6 0 8 2 6 4 A-6 0 8 3 At b r e a t h in g zone o f t h e o p e r a t o r s w h ile kn ockin g out cor es At c e n t e r o f t h e p a t t e r n shop ( e a s t room) 1 :5 8 p .m . 2 :3 5 p .m . -- -- 1 .3 0. 8* 6iiA-608i At Ce n t e r o f t h e p a t t e r n shop ( w e s t r o o s t ) ; 11 m in u t e s in t h e c e n t e r o f t h e r oom , an d 15 m in u tes n e a r th e sand in g op er ation 2 :3 4 p .m . -- 0 .7 *** ` ^ Ca lc u la t e d fr om th e. fo r m u la : Th r e s h o ld Lim it n n p ft .3 = y- **Du s t in g e n e r a l a r e a c o ll e c t e d fo r d e t e r m in a t io n o r .lv o f i t s q u a r t z c o n t e n t . ***'?e r y few fib e r s w er e p r e s e n t . The fib e r s wer e more t h a n 20 m icr o n s in l e n r t h , in d ia m e t e r , b ein g too la r g e to be r e s p ir a b le .