Document 91MxygE3D3VV5wEVNoMpwG2VL

FILE NAME: Lockheed (LKH) DATE: 1980 DOC#: LKH003 DOCUMENT DESCRIPTION: Recommended Asbestos Standard [Industrial Hygiene Journal] p rit,-ioCi ,, | 'I'cmrnt ft and I:iIII Ibook H. d . c. ITmrmaTramum ook Co., A.VCE: mil brief i.Ift!.*- ATIO.V 1'S TO -diceous <lia- --elpihr > with utlietic I'"', are names; l.udox, are; polish1 icni pre iliod, Industrial Hygiene Journal c . k u c o m .m k n d e d m s r u m p r o ,;lzil . ............ - ,.f niimiphom ,,jj Hist, process ventilation ,m| / lir ' |M.rr an- the l-e-, ,,r nimr((| hor miiiii* y|KT,itinn> du-t r.s,r;,t,,r approved by fl.,- V. S. Jiwrr:,,, of Mme-- /nav tie satisfactory. ' IV. Sjieeilic Procedures A- FIHST AID: None. . SPECIAL MEDICAL PHDCHDUM*. (1) I replacement: Cliniea! and chest radiographic examinations should 1 made on all jiersons prior to job rwignment. (^) Periodic: Since there is only Jim ited infonnation about the harmful effects of mnorphou- silica in indnstn-, exposed xT-onnel should have careful jieriotlic medical exaniinations, including chest x-ray. Pulmonary function testing may be useful. (3) Treatment; No satisfactory treat ment other than removal from ex- jxwure, and therapy for any com plicating infection. ' 1 G1 V. Literature Reference. ' ....... al: Indus,nal JJV. ...... . m . " i r r ' ^ 1',.'* ' S;; . : Industrial J)^..\Ie(,raw -II.|| Co., Inc. New York, /mL - Oce c i ' : 6.1 7 r- Ct al: Areh. , th; W: 125- 1057 i ibid, 10: 30a, If)..,; ibid, 10: -if>9, 1057. . SAliT 11. II AX, Andkiiso.v, \V. M hut. Mrd and Sing., 21: 500, 1052 S. 1 KBttKVs IJ I). an,, hKAKD| n JL: ' UA 9 n i ' ! '" U h ,,n h - U1: M. 1957. 9. U. b. Jul.hc Health Service; California Department of Public Health; Nevada State Health Department; Oregon State SPulv 'r P110''" 1' 1 Vr,VT^ I{<,lH.rt of / Vf 1 iinoconnws Hazards in the Diatomite I rocessing Industry. 1055. A s b e s o s I. Hygienic Standard* A. KK( ( iMMKXDED MAXl.Mt'M y r -MOSPIIEHIC COXCEXTIATION (.s hour-1 : 5 million particles j)er cubic foot of air (MIM'CF).' (J) basis for Recommendation : Experirnce indu.-try,* ' - ;lll(| nni. mal ex|>eriment.s.v ' B. SEV ER ITY OK HAZARDS; ( 1) Health: Long continued inhalation or a-I>0-10- dust results in a form 0, pueumocomo-is known as a.-lic-- to-is. The primary eff.-et of iniula<"11 1- an interstitial pulmonarv hlim-i-. The disease is characterized by asliest os Iwidies in the lung- and "'putum. Based on roentgenological 1vuiiiiiMtions, ;i>lx\sfom* c:tn (p died as minimal, m.Hlerate, and advanced. I, is a sorimi- di.-oa.-o in some in-tanees, but more fre,|iientlv it remains nondi-abling for mamyears, oven without appreciable rymptouM, as ]()ne .,s Mmir O()lor icrioua disease does no, sii|s*rvene '<> cau.-o death.* t.-hief sy,upturns of uKaneed asbestasi- are variable rough, dyspnea, substernal che-i Puius, leereased che.-t expan-ion "oakness, emaciation, clubls-d fi,,Rer ,'!>s, and curved fingernail- Amappreciable deerca-c in the amount of asU-stos dust in the breathing '"<--phoro "ill cause a deerca-c m tlie incidence and soveritv of asIs-.-tuMs. Individual suceptibilifv varies.* There have lieen re|,,,rr< ,if ;m uicrea-ed incidence of lung can- o'r I"''-** "Uh a-ltosto-i.-.* rire: None c. SHoiri' e x p o su r e t o l k r a x , Not aptiheable: ' IL Significant Pro|>erlios A fibrous magnesium calcium silicate which occurs m various combinations as white Rrcyish or greenish masses, oitlier comre.rt r of t.w ,,IU sejiarated. Alxmt 05% of commerieal asls-:- 'os is chry.-otde, which is derived from 'rpoutme. and is a hydro, J ^ i ' NOV 24 tfte jKJ3f!T G. MXS i ! ! ! \i "wf.  Ar:} i . 1 ,-s? - - ^ yir ~ v *' JL+i , r -^Vr ' { Hr ! r, < sr ^ Vw* u MKi ; mi 162 silicate containing from pj l0 J4 w r April, 1958 Indi water of crystallization, i l l . industrial Hygiene Practice ^ E C O G N m O N : The spuming and weaving, of asbestos, in combination with other textiles for lire proof and heat rcsistaut cloth, results in dust exposure It may be used by itself or combined with other materials for valve packings gaskets, boiler lagging and pipe cover ing, protective clothing, shielding ma- Jmvc periodic clinical examinations lor signs and symptoms of asbes tosis. These should include exami nation of the sputum for asbestoas oodies, and chest x-rays of good quality. W Treatment: No satisfactory treat ment other than removal from ex posure and therapy for any com plicating infection. term s, and as automotive brake linings, in the building industry it is used in V. Literature References he manufacture of asbestos cement products, heat insulating, and fire proofing materials. 1. American Conference of Governmental Industrial Hygienists: AM A Arch, oi / ,, //" ' Health, W: CGI, 1957. 1 ` 13. EVALUATION UK EXPOSURES: A licstos dust may be sampled with the uectrustatie preeipiiator or by the impingcr metiicd using alcohol or alcohol and water, as the collecting medium and dust counts made by the standard light held technique.* The recommended " H/ /e"alnthf," '1,11:>ACU0'4;( 1953. Arch. 0j ,,d. ' j. w . it.: lint. J . Ind. Med., , ! 4` n "n ? EN.'-W- C- et i: Public Health 4 r M r ; alT p,,cnc concentration of 5 Mi l U? is based uj>on the impinger ^ sampling procedure. 5- " 1 /!A* Hatch, T .: Industrial ! Dust. McGraw-Hill Book Co., Ine, 1 New T:ork, 1954. u C' ?kn Cu x ' HI UL p r o - LLDUR.Eb: 1 ruvciitiou 0f asbestosis dejs'iids entirely upon preventing ex- . fAiuiuLn, L awiusnce T.: Industrial } ioMcology. i lie Wilhams it Wilkins < .. Baltimore, Md., J957. .1 poMirc to concentrations of dust sulli- . . cntly lo produce the charactcris- ' tic reaction. Enclosure or local exhaust ventilation arc the principal means oi r t r , T , U- ' Mine, a " provod duat naiaralora may bo worn L. ITVV. SwpecPi-fi?ct*P!:,rUoocned,uorresm e ojierations. A. i 'i i t i 'l AIL): None. 11. SPECIAL MEDICAL PROCEDURES(1 ) i replacement: Clinical and radio- i m : L J- a l: Tho i. p. i * i S- f,VN.1;1.1' K - W-: AMA Arch, of Ind. 1 Health, a ; 1S5, 1955. ^ 0. M ci'iiKETsiis, b. B.: J . Ind. U yg. & f x- I*: 229, 19J0. 0. I aE, R. T. and BtooU7IELD, J. J.; 11 v J l v Uh RcpU- 52' 17 13 > 193` - L F ra? k A" industrial Hygiene 1l u' Lbhslh0cXr,sC,0I,ncS.,y\N,eVw{jYi or1k, k19t4eSn. S n ce graphlc chest examinations prior to job assignment. Health, iKt>: W ijS-| A19A5/5A. Arch, o'f Ind. (2) Periodic: Exposed rsonoel should H)/yTgn. "AalnDdJ OcJcu''pe.t 4l1e: dA. M 3 A : 1A,rc1h9.5I1n. d. T h etc ctio n , have I c e n m a L o ^ t h c ^ o j ta lh c u tu u l ind,trial tupc ,,/ expo,arc Anu ,D n 0 f CXp0,Urt ew/anon. rth a M u V, "d applicability 0/ co/.if,d. expotare, and not relied upon at primary mean, JZtZZZ " h' " * * w ,, H ^ kshitit No. 2<r K0V 4