Document 37mGb9JYwK3y71z9krNaaQ4YD

FILE NAME: Rogers Corporation (ROG) DATE: 1972 Dec 21 DOC#: ROG069 DOCUMENT DESCRIPTION: Rogers Corp Analysis of Asbestos Samples REPORT Nn Y -7 9 1 9 -2 n A T E DEC- 2 1 ,1 9 7 2 SUBJF<~r ANALYSIS OF ASBESTOS SAMPLES CLIENT ROGERS CORPORATION_____________ MANCHESTER, CONNECTICUT OGOUO Y o r k R e s ea r c h C o r po ra tio n STAMFORD. CONN. Rogers-Gough 012031 REPORT NO. y-7919-2 PAGE 1 OF 14 PAGES PURPOSE F iv e (5) p e rs o n a l f i l t e r sam ples w ere an aly z ed fo r d e te rm in a tio n o f asb esto s co n cen tratio n . RESULTS The fo llo w in g r e s u lts w ere found. S am p le N o . 1 ( B e a te r Room) 0.88 fib e rs /m l. Sample No. 2 (735 A rea) 0.M0 f ib e r s / m l . Sam ple No. 3 (M illed A rea) 1.24 fib e rs /m l. Sam ple N o. 4 (Dumping B a rre l) G rade No.</62 129.30 f ib e r s /n l. Sam ple N o. 5 (Dumping B a rre l) G rade RX-44J, 24.09 fib e rs /m l. D e ta ile d r e s u lts and R ogers C o rp o ratio n d u st survey form s a re included in th is re p o rt. CONCLUSION Some c o n c lu s io n s can b e re a c h e d from t h e r e s u l t s . T hese a r e : 1 . A reas w here sam ples 4 and 5 were tak en a re in excess o f th e s h o r t - t e r m 10 f i b e r s / m l . l i m i t s e t f o r b y OSHA. C o n tr o l equipm ent and p ro ced u res should be in i ti a te d . 2 . A rea w h ere sam p le 1 was ta k e n (B e a te r Room) shows s i g n i f i c a n t im provem ent when hood i s u se d . C o n c e n tra tio n p r io r to u se o f hood was 7 .5 f ib e r s /m l. The c o n c e n tra tio n was reduced to 0.88 fib e rs /m l. w ith hood. 3 . A rea w here sam ple 2 was ta k e n a ls o shows im provem ent when th e screw conveyor is covered. Previous concentrations w ere s ta te d t o be 18.8 f ib e rs /m l. The v a lu e s m easured a re 0.40 fib e rs /m l. 4 . In th e fu tu re * i t i s recommended t h a t lo n g e r sam ples be ta k e n . To sam ple fo r a sh o rt-te rm lim it (10 f ib e r s /m l.) , sa m p le s sh o u ld b e ta k e n f o r 15 t o 30 m in u te s . To sam ple f o r th e d a il y w eig h ted av erag e (2 fib e rS /(iil.) a sam ple o f 90 m in u tes should be tak en . York Research Corporation STAMFORD, CONNECTICUT Rogers-Gough 012032 REPORT NO. Y -7 9 1 9 -2 PAGE 2 OF W PAGES DISCUSSION T he f i l t e r s w e re a n a l y z e d a c c o r d i n g t o a p p ro v e d NIOSH a n d OSHA te c h n iq u e s . The p r e p a r a tio n o f th e sam ple was as fo llo w s: A d ro p o f m o u n tin g medium, h a v in g a r e f r a c t i v e in d ex o f 1 .9 7 was p la c e d on a f r e s h ly c le a n e d , sta n d a rd m icroscope s l id e . A w edge-shaped p ie c e o f f i l t e r was c u t from th e sam ple f i l t e r and p lace d d u s t-s id e -u p on th e drop o f m ounting s o lu tio n . A No. 1 -1 /2 co ver s l i p , c a r e f u ll y c le a n e d w ith le n s t i s s u e , was p lace d o v er th e f i l t e r w edge. The fib e rs w ere observed under a power o f 930 X m a g n ific a tio n . S iz in g was accom plished by an c a lib ra te d e y e p ie c e r e t i c l e . Tw enty f i e ld s lo c a te d a t random on th e sam ple w ere counted and t o t a l a sb e s to s f ib e r s lo n g e r th a n 5 m icrons a re re c o rd e d . Any p a r t i c l e h av in g an a s p e c t L a tio o f th re e or g re a te r is considered a fib e r. York Research Corporation STAMFORD, CONNECTICUT Rogers-Gough 012033 REPORT NO. Y -7 9 1 9 -2 PAGE 3 OF 14 PAGES FIELD NO. * 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 IB 19 20 TABLE OF RESULTS NUMBER OF ASBESTOS FIBER COUNTED SAMPLE IDENT. 1 NO. SAMPLE IDENT. 2 NO. SAMPLE IDENT. 3 NO. SAMPLE IDENT. 4 NO. 2 4 2 20 0 2 1 17 1 3 1 24 1 1 1 30 2 2 2 16 0 9 2 21 0 7 4 22 3 1 2 31 1 1 4 25 0 2 1 32 1 2 2 37 0 4 4 19 1 3 0 29 2 2 5 31 1 1 1 38 4 4 2 55 2 2 2 29 2 2 0 18 0 0 4 29 1 2 5 42 SAMPLE IDENT. 5 NO. 4 4 12 4 9 3 6 4 3 6 7 6 4 4 6 3 7 4 8 5 A v e r a see F ield 1 .2 0 2 .7 0 2 .2 5 2 9 .2 5 5 .45 A sbestos E x p o su re F ib ers/m l. 0 .8 8 0 .4 0 1 .2 4 1 2 9 .3 0 2 4 .0 9 Yo rk Research Corpora tion STAMFORD, CONNECTICUT Rogers-Gough 012034 REPORT NO. Y -79L 9-2 . PAGE ** OF 1# PAGES Mfflnta coaro&motwstimtvBi PIASI pump Sd. _ BaAple Sin. Remili i/ d Dutui C'att<? _ JSLL. O* Survsy for* (Type or Concsmitjaai:) . Grader ^ - . Q ^ - A J L , --------------- --- U cafciw w Simple NtAWA r ___ ] TrJ T-fcarfc y-Xtsai isji fo t* l jirns UA&&<Jls 1---- L. ^xiwiwJ S u n il* l__'=r^ 7 CAI .j j l . i/af n. lit CorriIfcl|Oaa & Op.'gfflj: laCTt! C u M ^ jU ^ / ^ u /^ M ^y. Tent Btive^ gjg^mgpn^^U1<*g*g ^ /}//j 4 r L . M . * > Rogers-Gough 012035 REPORT NO. Y -7 9 1 9 -2 PAGE 5 OF PAGES CALCULATIONS - SAMPLE 1 1 . F i l t e r A rea = K = 8 5 5 nm^ = 8 8 9 1 .8 F i e l d A re a (mm2) 0 .0 9 6 7 mm2 2 . A verage N et Count x K = fib e rs /m l. A ir Volume Sam pled A verage n e t c o u n t p e r f i e l d o f 20 p a r t i c l e s = 1 .2 f ib e r s Sam ple w as c o lle c te d a t 2 lit/m in f o r 6 m in u te s . f l . 2 fib e r s ) x 8 8 91,8 2 , 0 0 0 m l/m in ) (6 m in .) = 0 .88 fib e rs /m l. Then: Yo r k Research Co rpo ra tio n YORK STAMFORD, CONNECTICUT Rogers-Gough 012036 REPORT NO. Y -7 9 1 9 -2 PAGE 6 OF W PAGES BflCBBS CORTOBATIOH PUffC StlRTi Survey fo rs (Types or Oontwnituiae) Grada " lo catiw s 7 3 S pwhjs s o . --- -------- L - tempia M. *sb. R B ult9 /e ' . o.*o D ate C c'iatcd o _ 'zia. } T ___ _______________ S d sp le No. AHTA O Tltfftf itM irt _ TiAtti! *.ttd l o n t Tli'? ,, ^ s ra a n v l &U49-l* ju ^ jL___ __ / / : o * / ,________ _ \ 3 $ /ToL-tms A. jml r . . 4 . i Jt-ciu Coridttlo s.B & O tisxK ttivm g o e. s . * f<i, a * <? c U S m f </ Te n t a t i TO lte-^igr-ffl>iv*ic.a * / MIC. A- ' ^ Rogers-Gough 012037 REPORT NO. Y -7919-2 PAGE 7 OF PAGES Rogers-Gough 012038 REPORT NO. Y -7919-2 PAGE 8 o f W PAGES ROGERS CORPORATION O T jgJW fflg PXAHT PtHEJJ HO. Sample KffResult /** ..jB&C. ^ 3 /.2 .* Bui:* Cc'sflfcet* Survey fo r i (Type o i Contamini-nt) rg-^. Grade; __ Q t t h _ _ _ ____________ lc c o tlo ? i__ Sample Me,. ABM Varbiowif .Tiirss Tl.s St*st , Rod J& J& L ______ Tc*l Tk-:* t ,, ______ fcfepll'ft - , _ ??r . . . . ... ` ^ c> Sk'wfi Vt Jv<sb ______________/ ____U * V-**- | Z ^ A a o I c/ T e n t a t i ve Beeaairejsaqfctoa.* ^ 2 f 2 jc * s Rogers-Gough 012039 REPORT NO. Y -7919-2 PAGE 9 OF 14 PAGES Rogers-Gough 012040 REPORT NO. Y -7919-2 PAGE .10 OF m pages PIASIs x Survey fo rt (Type o i Contaminant) GradeiMStlOBI Fiiop BO. ttwapla Bn. ^ Reault f/ed OAK Cotntai -A IW 3 0 SDioplD Ho. ABR4 r 1 T it: S tart of) . ' /O TJiuis Rwd lo t l Tire: , <a? ... - - - iiompll'.ia Smkk <2 - fvw l ^ - Vernon! S enile L___ ! ****" Condition & Operettas: .( . - 6 -k X - i / . J j rn r-, yepjsettvg Begoaegdttoa<L8 Rogers-Gough 012041 REPORT NO. Y -7919-2 PAGE 11 OF ^ PAGES CALCULATIONS - SAMPLE H 1 . F i l t e r A rea fmm2') * K F ie l d A rea (rnm^) 2. Average n e t count x K fib e rs /m l. A ir Volume sam pled (ml) A rea o f f i l t e r = 855 imi2 C o u n tin g A rea o f one f i e l d 0 .0 9 6 7 nm* Average n e t co u n t p e r f i e ld o f 20 f ie ld s 29.25 fib e rs Sample was c o lle c te d a t 2 lit/m in fo r 1 m in u te. Then: 855 mm2 0.0967 =* 88M1.8 (K) (29.25 f ib e rs ) X 88til.8 = 129.3 fib e rs /m l. (2,000 m l/m in) x 1 min. York Research Corporation STAMFORD, CONNECTICUT Rogers-Gough 012042 REPORT NO. Y -7 9 1 9 -2 PAGE i 2 OF XIf PAGES ROGERS CPStPORATlPM BSTLggRgg PLAiiTl s tts *A Survey for* ('Type c Contamia s a s) Grade; L aeat lo as HoSfipl !nR em ilta f/c Da fe Ctoateed ------1-------------- 2 4 - o9 / -//j, / .......... .. Sdmpla tic. ARFA a `ler!75hl Cotati tiofcfl & OtMitafcior/i; T ir* ; KW rt T *n Rrd , a.w an yAy^e'w T o tal Tir-if . i'M tf .2 ^ S t a i l V-lUv** !------- 1 ) 6lw* ~+otxrt i/o la . lite * Tants tiv e Rtcearaerwifctoa^i V<rr~ Rogers-Gough 012043 REPORT NO. Y -7 9 1 9 -2 PAGE 13 OF 14 PAGES CALCULATIONS - SAMPLE 5 1 . F i l t e r A re a (inn2) = K = 855 mm2 0.0967 = 8891.8 2 . Average N et Count x K = fib e rs /m l. A ir Volume Sampled A verage n e t count p er f ie ld o f 20 p a r tic le s = 5.95 fib e rs Sample was c o lle c te d a t 2 lit/m in fo r 1 m inute. Then: (5.95 f i b e r s ) (8891.8) = 29.09 fib e rs/m l. (2 ,0 0 0 m l/m in )(1 min) York Research Corporation STAMFORD, CONNECTICUT Rogers-Gough 012044 REPORT NO. Y -7 9 1 9 -2 PAGE W OF W PAGES M a rv in W. B lach m an In d u s tria l H y g ien ist >> 'd z -' tS & P A b rahhaa((nh, ,JJ . K u rrttzz--'-'1 ^I V ice P re s id e n t en v iro n m en tal S ciences York Research Corporation STAMFORD, CONNECTICUT Rogers-Gough 012045