Document 5DJVbrOjQVonB4g5g2LMZmrR0

'ismamu I lU ~i UJ L O C_^ toxicity THRESHOLD LIMIT VALUES OF Alt-IORNE CONTAMINANTS \ ______________ tDlO mcvisirac irdNAbffft MFITIf INOINIIIINO STANDA*0 Aota 1941 JUNI 1978 JUNI 1972 S2T 1 of 1 i.i, ;e*.^e.i > ;si or :ih:*nnd .i.-Lir.j-f grift its ;.t .id : c mcnieVy riu'f r>. y-1' Ceevpe'ions! io{t`y and Hasith Act at 1570 'OSHA) at publiahad m Fvitri! ?*j. . I. (COM 1.1 TUt auadard providn a te el ibnabold Unit aatat (TLV't) al air awuaiaHH la ptwridt criaria Sir iaSt Caapany vatic aarviroatotata. TLV it dtSoed bi 4.1.2. 1.2 Tilt HVi IM ia Tabka 1 tknagh V art raacaaiaodad valatt al tot Ajaartou Caafwwi of Covanitaial USattrial Hygitatou (ACGIH). aad an npriaiad viib todr ptmtoaioa, ngtobar wilb lit arcctopaaytog prtiaca. am aaabea 4. aad Apptafkea A through E. Tit viittt an nvtowad aad publkbad aaaually ivACGIH.** t.S Tabk S tea tateaaan tor wiki TWA, 0tog and paak^ taaaaatrattoat kava faaaa aatabUaitod uutor OSHA . Each at tina uhaitant alto to todudad to Tuib 1 witk nknaan la Taik 5 tor lit ttiltof aad paafc aaamtratioM. x AmnNO nv* X. I Maay abaadoaa vim wait tahtuntn an baadied uy ra^atot delated ravtow by apirialirrii ngtoatra. toclaaaial hyfjaaiatt. aad nstoatogtou to abiato toa optima to ditop ooatrol*. Wbta additioaal totoimattoa to aaadad aa lit Mxtoity of other aatoruia tad lit btalii haurd lhal aay ba aaaadand wih than, coaaabaitoa abmdd ba aadt vih lha Raakail Laboratory (or Toxi cology aad Iadaacrial bUdhtao X2 Satoty praeaalioaa to DR176X ibal ba toBowtd vis htatUtog tadtoaadva atoriak X OOCUWNTAnON OF KANT xkhincs U Whan atoia aadaa or toaal plait ntoa aptcify aoalacatoaw alrbaroa aoaaaatradaaa dlnaal baa ibeaa to lha faUevtog table* Iba lovaa vatoa abaold ba aatd tor lha dadp at oaaaol faafflltoi LI ft would appaar dtdrabk tor oath dapartnaot, to oaoaubaitoa with too Matiaal Divtotoa aad Haakali Laboratory, to nmddar Iba aapaaaiaa of ba anploytt btaltb progran to tortoda Iba aaramlatba of dau oa iba lavrla of aaipioyaa aapaaun to lion ooatanbaait which nay ba dpiltait to Coapaay oparadaaa. Tit dau derived koto auth andtoa ahoald, al aa apprapriata dat. ba naaidawd far aubaiaaioa to iba Sacratary of Labor to tatablbb. auppart. or nfaia iba' vaho tor aay epeeific notorial. 4. FHFACS TO ACOIH TAK1S AiMOINI CONTAMINANTS 4.1 Tbnabold Kail valuta n(tr la akbona aooontradaaa of aubtoaint. aad npraaaal oaadUaaa uadtr which h to tetervad that aaariy all warkan any ba npaaiadly myani <Uy alMr wfcfct A^vtrM Ad Iicimm of id> vuiabca is Mfriduai sueept&Ufey. bowtvg, * atoill paraaatap of workart aay aaptriaoat diacomiort (ran aoaaa aabauaaaa at aoatuasadoia at or below the ibnehold Knit. A voter paraaauaga nay ba aOtettd non aatiaoaJy by aggravadoa of a pre-criauag toadidoB or by davaloptoan of aa aaaipaitooil iBaaaa 4.1.1 Sinpk totoa an aow avadahb (i Oacup Mad 9. SS7, 1967t Aaa. NY Aoad Sd LSI Art. 2. 9M. 1968) that aay ba aatd to drtM than todividualt hyporaaaarptfcla to a variety of toduatrial thntotoalt (napiratary irriuau, hmalylto toftoaln, orgaato tooayaaataa. aarhoa dinlflda). Tbaat toata aay ba aaad to aenaa oat, by approprtola job pluvial, lha byptmaedva woricar aad ikiu. to aCM inprova ihto "aaveraga" of tba TLVa. 2.1 TLVa van iatotodad to ba aatd aaly aa gaidaUaaa tovard iba vahHchnan of aafa woifciag aa'viroaaatat*. Homvor.tbi U.S. Dapamt al labor baa tocorponuad Ibaiie acabliitaid TLVa aad otter aaskfcy totovatioa tola ka ngulaltoaa. la addittoa. gavtmaui agaadaa al attoir tovaia ibal kava aot ainady daaa aa, wiD uadoubcadty (allow nil, ibanby tooaaatog lha Conpaay'a auitt to Stand aad roaliatia TLVa. 4.1.2 Thvbold iiauc valaaa rakr to dna-waighiad aaaaantradoaa (TWA) tor a 7- or tobour workday aad ilLbaur warkwaok. Tbay ahauld ba uatd aa gaidaa to tha aaairal af btaltb baaarda aad abaold aat ba aaad aa Saa boat banaaa aato aad daagaroaa avaeawadoai. (Exaaptioa# an tha tuteaav liattd to Appt^fcaa B aad F aad than nbataav doaipatod with a "C" or Cditog vohio, Apptadto 0.) * TKa nlvaa hi Tabloa 1, 2. aaO S waal at aaaoad ihaaa aiaaialaaiad *"dar OSHA aa, 1010.19, aaa 4.0 "" Tabloa I Hwawfh * hi (hit iwvlaiau art iba UTS ACOIH volaaa TT "TWA** It dafhwd la 4.1 J, '`aaok** hi 4.1.1, an4 *'aaiUa`' la 4.2 tuatomiTTaa wo. aa DUP 0960070 i S2T rt 2 THIISHOLO UMir VAU1IS OP AtMOINI CONTAMINANTS AMU IH1 This Eft Itv fraa 1T73 N 1M 4.1.1 Tima wteghtad avtragm parmit txairtteat above ik* limit (peak*) provided they u *oapa*awd by *qaiv*lal axsataiais b*low tb* limit damp fa* work day. Ia mm* inatsae** it may h* panaimibfa t* *kalal* ik* av*r*| eaamntratioa far a wocirwmk rathar ikaa far a workday. Tk* d*frm ( ptrmkalbl* racunioa i* r*lwd Is tk* ma||akad of fa* farmhold Umk vaia* *1 a paid*ular sabatum* a* |iva ia Appwdbt D. Tk* t*Ud*aahip b*twa timthold Umk aad parmimihia (aaaniaa i* a ral* at tkamb, aad ia mrtaia cam* may ast apply. Tk* am*at by which threshold taut* may b* cstasdfd far *h*n parixli wifaaul fajaqr i* health dapaads upsa a aumbtr af faster* a*k a* fa* aamm at fa* **auaiaaat, whathar t*ry high *oac*atr*daaa -- a* far abort periods--product ma poiesalag, whafaar fa* tebcm at* wuauiadvu, tb* fmfmaay with whfab high --maw*lino* oecar. aatl fa* duralino at tack parted*. All falars mail b* talus lit* oaakteradoa ia irriviag at dmfaioa a* t* wbatkir a tasardaa* Midktea *rita* (Natm TLV* a*awdm** an nfand la a* MAC*, maxiam aecsfitabl* coawotratfaaii aaakaam silawaki* oomotratioat, or maximal aemptaki* eoamwratio**. Tk* Amarima Matteaal Suadard* latkot* puhlkhm a ante* at standards Uetmg MAC*, riml aompubl* eoomotratioa*. which am paak valam that should aat b* x***d*d ia aarmal work day.) 4.1.4 Tkmshald Bait* am bamd apoa fa* bmt avaUakl* iafarmaltea from iadomrtai wparkac*. from xptrimaaial humaa aad aaimal stadia, aad (whm potiibU) from a **mkiaadaa at fa* far**. Tk* kaai* upoa wbkh fa* valam am mtaklhkad may diSor from nHum to wfataamt ptotmttea agamat impairmaet of health may b* a guidlsg fa(tar far asm*, wham** ramoaablr frwdam from irritatfaa. aametea, aofaaam. or otktr fans* *f atmm may farm tk* basis far otkrn*. 4.14.1 Tk* amauaa aad aacam af fa* lafarmatioo availibte far mtahlfaAfaf a TLV vaifaa from sofa ataac* t* snhamocw io*m**mt)y. fa* prmuloa at dm aadmamd TLV la al*a ah|mt la vaitettea aad fa* latnt Oaaiaoaatmtai** abated b* nawtlfad ia tk* avtaal li fa* aia avaitebl* far a gtram i 41J Tk* aammtai bald* t* tk* *piaiaa that limit* bamd oa pkyteml frikattoa akaald bacaasidamda* l*m biadiag Uiaa fa*** bamd oa pkyteaal impahmmt Tkam i* iaaraaaiop rvidtam that pkyiiete irrkattea may iakiau, promat* ar aamiant* physical impafrmaat throagh iaamasttett with *th*r k*mi*al *r biologic ipaat*. 41.4 Ia apit* of fa* fate that amteas lajory is a*t k*U*v*d llkaiy a* a rrnah at cap*aura is fa* thrmkald lima ooaaatrstteaJ. fa* bmt praclfa* t* ta mafatam t*a> matrattea* of all atxwaphth* coatamkasa aa law a* iapraadaaL 417 Tkm* limk* am iaMadid far mo ia fa* practfa* af iaduwrtal kygiaa*, aad akaald k* kuarpmud aad appifad *aiy by a p*m*a Baiaad ia fai* dhrtpUo*. Th*y am sot iat*ad*d far a**, ar far msdUfaattea far am. (1) aa a miadv* ladn af kaaard or taxhfcy, (2) fat tk* rvaktatfaa or air ptelatfaa ateMana, (3) ia mdaatfag fa* taxi* potmrial af **ada**os, aafatarraptad axpaam*. (4) a* proof or dkpro*f *f aa wfatfaig dims** or physical eoadittea, ar (S) far adspdoa by aeuaarfas wk*a* wackiag madfetea* diiiar fr*m fa*** ia tk* Uaimd Statm *f Amanea aad wksm anhiti**** aad pre*m**a dikar. 47 Ctelteg v* Tlmo-Wtephtad Avoropo Umita.Although fa* tfaM-wtighwd avMBf* (oarnitruhta providm fa* mast aatisfaeMry, practical way at aoaiittfag airbara* agssa far mmpUaam with fa* Umka, tkam am mmJb aifaataam* far which k is iaapproprteta. Ia fa* laaar proup am sahataacm which art pmdamfaaaily fast aalag, aad wh*** farmhold Umk I* mam appropriately bamd apoa this partfaalar rmpoaw. Sabmnrn with this typ* af rmpaaaa am bmt coatmlted by a etflfag "C" Umk that akaald aot b* *a***d*d. It M implicit ia fa*** dtekddoa* that tb* maaa** at utiplwg a tenabt *a> phase* with fa* Umka far *a*h group mate dlls; a sfagfa brief sample, fast 1* appHtbl* to a "C" Umk, k aot appcepiiatt to fa* Umowteghud Emit; bars, a aafficimt aumbtr *f aamplm *m *i*dad is pmrnk a tka*-w*jgkl*d avrag* aactonfratina famagbout a *smpl*ta <y*l* of oparatioaa or thr**gh*m fas work akiA. 42.1 Wkcmas fa* miUag Umk pteem a dtSaia* baaadary which laacmgaaoo* should am br parmkttd la otwd. fa* Halt waigkud avr*f* Unit nqaim* aa explicit Umk ta fa* canmtea* that am parmirnfai* akav* fa* Uwd valam. Tk* magaitad* af fa*** manias* may b* p*gg*d ta fa* magteatea at fa* farmhold Umk ky aa appropriate (amor thaw* fa Appmdbt D. b should b* aoisd fast fa* aaaa* faaum am umd by fat Cammfam ia makiag a jadgmeat whth*r ta iaafad* or raelad* a subetaaea far a "C* Hadag. 42 "SUa" Mattelmi. Lkud sabstaacm foOowad by fat dmigaattes "3kia" rnfrr la faa pouatfal mmribuitea t* tk* ovaraU *xpoam by faa cataasaas mala iateadfag musaaa umbras** aad *y*. tkhsr by airbsna, or mom partfcaiarly, by dfrmtceatact with faa wfaatakw. Vakktea eaa altar thia abaorpdoa. This tamtam itailng daaif aatten la iataadad ta laggmt apprayriaat ataatarm far ' uO**wi*tml*o at tb* TbnlnM Uwlt V*km* far tvhamma* I* 0*riw**w Air", ACOUt, AO. Ci*lMiH, OH 41201 (1*72) 1 *37. OUP 0960071 CONFIDENTIAL DU 040381 I** * > 31 =2 S APtIL 1941 Tills bag# lav Juna 1973 TMRCSHOU) LIMIT VAIUIS Ob AM.IORNE CONTAMINANTS S2T Page J tie prweatiea af nlnwu abeorptisa to that th threo- 44 Skapin drpbyeianti - 'Ianrt" Goeae ar Vapaes. A t old limit ia net invalidated. aamber of gases aad vapora. wbaa peaacat ia hi(k coo* 44 Mfadwes. Spadal consideration alia should bo given t> the application of the TLVa ia assessing tba health kmarda which may b* eaaoeiatad with exposer* to mix tures of two or saort nkilmm. A brief discussion of baait sensideratioas iavolvod developing thmhoid laid values (or auxtuna, aad methods for their developnaat, amplified bp apaaifia examples ara given ia Appeadix C. aamtratioaa ia air, act primarily aa simple aepbyxiante wbboal other tigniScant physiologic efforts. A TLV map aot he rmammeadad for rach igapit asphyxiant because tba limiting iaetor is tba available axygen. Tba minimal oxygen aoataat abaald be IS poetxt by volume under aaimal atmeapberic prmaurt (equivalent to a partial ptmsare, pOt af 13S mm Hg). Amaapbaraa deficient in Oa da aat provide adequate warning and moat simple uphysaaa ara odoriau. Several simple asphyxiants 45 Nuitanca bartkulataa. la eoatraat to Sbrogaaia dcata which eauaa tear lieiue to ba iorawd ia lugs wbaa inbiiiad ia eacesaiva amounts. ao-calkd "aaiaaaea" dam prmsat aa arplaaica baaard. Amount abouid be uken of this lector la UrnHag tba aooamBetioa of the asphyxiant. Syociit examples are ifowd hrAppendix F. bitvt a loaf history of dttit adverse effort on lungi aad d aot prodoco aipniilaaii argaaic diataac ar toxic abet wbaa axpaauraa art kept aadar raaaooabla coatrol. Tba aiiiaaact duals bar* aiao baca called (bioia|iealJy) 4-7 Phyeieal boefors. It is recogaind that such physical faatara aa beat, ebraviolat aad ioairing radiation, humid* by, ahaeemai pcemure (altitude) aad the like may place "Inert" duau, bat the latter am ia iaappropiiate ta the addtd anas on the body so that tbs efforts horn expooure etiett that there ia ao daat which doea not evoke aaxie at a tkreakeld Hah may be altered. Moat of these atrmect cellular reepaaac in the loaf wkra inhaled in sufiefont act adveretly ta incream the taxie reeponet of a tab- aiaount. However, the hmg-tieeue reactiaa cauaed bp atcere. Allhoogk moat tbtmbold Smite have built-in aafoty fokaladea of auiaaeee daata hae the following ckarae- factors to guard agaiaat adverse ifcti to moderate to iatki: (1) the aichbmare of the air appeal neuaa deviatieM from normal mviraamanta. the taitty (actora intact, (2) collagen (tear tissue) is aat formed to a tigaif- of most enbetanem are aot of sack a magakude aa to ieaat extent, (3) the tiaaue reaction ia potaatiallp fob* ears af gram dtviaiiooo. For example, continuous reveraibie. A.J.1 Fwceewvc aanawadaea of aaiaaace daata fat tba workroom air nap seriously radare vixibiUep (Iran aride), may aauae onpieaaaai depoaita ia the spaa, aara week at ampcratnrm above 90 F or overtime exteadiog the week--eh mere tkea 23 pereeau aught he eoaeidered gross deviadsoa. Ia sued iaataaaas jodgmcsi must be extrriaad in tba proper adjastmmta of the tbraahold limk ud aaaol passages (Portland Cmoret deal), or cauae ia(ttry to the aloe ar mmom fhrane bp rketakal ar aankaaical action (per ae). ar bp the liferear aide chaasiag procedarea aaraaaarp for their removal. 44 "Nabeo af Maat" At the beginning of each year, prep sand aatfoae of tba Commbue for the forthcoming year an foaaad ia the form of a "Notice of Intended 4U A Ihmsksld Imb of 10 mg/a1, ar 30 appsf, of total daat < 1 pereeat qaant ia reaom--iiH for sabearn in them cawgorw* aad for whfeh aa apariflr thieahold Smile have bam assigned. This Bab. for a aonaal workday, dam aot apply in brief anpeeerm at Changes." This Nodes provide* aot only aa opportunity for comswat, bm aotbba aeggtstinu of aabatanem to he added to the list. The auggeeiioai should be oeeompaaied by aubmantiatfog evidmm. The In of Intended Cbtagt* follows the Adapted Vaiam ia the TLV booklet. higher aimamwatieaa Nekbar dam b apply to tbaac oaiiatrnoai which map eaaae pfryafaiagte kapainaact at lower caacmnatiaac but for which a thieahold limb baa nor pet bom adopted. Soma aahaari particulates are 4.9 lapoi States. By pabliretioa ia the Federal Register (Vol 36, Na. 105. May 29. 1971) foe Threabeld Limit Values (1961.) are sow alMal federal standards for givm in Appmdbt E. industrial aw. $0 0UP 0960072 DU 040382 3 +# via A3 S27 bags 4 TMUSHOIO UMI7 VA1UIS OP A1MOKNI CONTAMINANTS apsii mi TMa Pops lav Juno 1972 Nans. 7abta 1 TAM t - AOOPTtD VALUU (la Aipbsboltaai Order) * 1972 Addition M Soa Notba of Iatandad Chaapaa Sae Tabh 5 ter ariltap aad peak eoaeocradaos Capital lawn ref* ta Appendical (Esarpt far T abows ta the lab af k Tables 1 aad 3. This fadtaatae data fee that auhatanre rafale to Ctdtap Ltatia. Sat 44 aad 4.2.1 for dbeaaataa.) (a) Parts of vapor or pas par ailBoa parts of esaUaueatsd air bp vsbuae at 25 C aad 760 Hf pr--aro. (b) AppraaMata afllipraaa of subetaaea par cable near of air. (d) Aa afaapbaric aonacaaatfaa of aot man thaa 0.02 ppak or psnoaai piciadu mmy ba aaaentry la avoid besdsabo. (a) < 5*~7pta ia dtamtaar. (0 Assampledbpaatbadthatdoassoteolfastvapor. (p) ftaaariiiip ta aBalpttatllj- dilinatani tanpnirina (b) For casual of paaaral rasa air, biefapfa caoakerfap ta aaaaadal for par* twaaal aaatrol. iadlao*Mtpi For panataalhla coacatratiaos of radiataeiopas ta air, aaa U.3. Dipt ifaail of Caaawrra. Nadaaal Sanaa af Staadarda Haadheek 69, "Ma Sana ParabaMs Bodp Bardaaa aad Maaaaa Parataaibla Coaeaatratioas of ladtossaUdas ta Air aad la Watar far Oaaapatioaal Expoawa/* Jaaa 5. 1969. Alaa. aaa U.S. Dapanaana of Coaaaraa Natioaal Sanaa of Staadarda, Haad> book SO. "Patnhetab Ooaa taa Eaacaal Saaraaa af loatatap Hadiadaa." September 26, 1954, aad addaadan af April IS, 1958. A report. Boata Sadia- boa Prafttoa Criteria, psbBabsd bp lbs Nadoaal Commitae oa Radialioa Protection. rrrtaaa aad norlaniaaa tba eaaeapt of lbs NCHP ataadarda of 1954, 1957 aad 195% obtaiaabla aa NCBP SspL No. 39, P.O. Boa 4867. WaabtaataaO.C 2000*. (Abo aaa 24). Si % fcibetaoso a ................................. Aaataldahyde................... Axtk arid........................ ** ABa anhydride............. Axiom............................. Aaateaittfla...................... 2-AoatpiamiandttBffa-- Skia............................... Aoetybae.......................... AxtpiaM dfahlorids, ass 1, 2-DWtIoroetbyUna. AtatpiaM tatrsbromida. Asrobia............................. Asrylamide--8Ua......... Aaryioeitrifa--SUa.... Adria--Skin.................. Alyl alaohoi--Skis____ Alyl ehlorida................... C Alyl (ipeidyi atiter (AGE)........................... PPW* (900) 10 () 1.000 40 _ F l 0.1 _30 2 1 (10) mg/M* 10 (300) 3S (90) 2.400 70 A* * 14 025 03 43 028 3 5 (45) Tiihifmcn Ally! propyl diaulBdt.... Aluadua (Al*Cb)............. I *mininli|iltaujl iflkln 3>AapiPothtnW, m* iiii 3-Aataopyridiaa............. 1 A mfnrinia . Ammonium chloride, fua............................... Ammoaium iui/tBAti (Atnmate)..................... a-Amyl acetate................ eeo-Amyl acetate............ AniKno--fl1m| Anutdina (o, pdaomata) --Skin.......................... Antimony dt aotnpwmdi (aa 3b)........................... ANTTJ (alpha aapbthyl thiourea)....................... TTk! 1 mat at u,m4 itiaia etaauilfetad undat OSHA et tVIO.f], PF'** 2 -- mm 04 (50) mm 100 125 5 12 E A` 2 (35) 10 10 525 690 19 04 04 04 DUP 0960073 1VI1N3QIJM03 DU 040383 APttL 1**1 201 n*l Pef* * Jan* 1979 THRUHOIO UMIT VAIUU OP All.BOtNI CONTAMINANTS *2r Pat* S TABU 1 - ADOPTED VAUJIS ICONTDI Mitnn Ml) Arfen.................................. F Antnie A compound* (M A*)........................... -- Anin*................................. 04)5 Ajphait (petroleum) fumaa............................. -- Aaaphoa methyl--Skin. Barium (aolubi* * oompotmda).................. -- C Baaatn* (banaol)--Skin. Benxidine--Skin............ p-Banioquinooa, at* 25 Quinon*......................... Banaoyi parotid*............. -- -- Banayt chloride................ BaryIlium.......................... Biphenyl, aaa Diphenyl. Boron oxida...................... 1 -- -- -- Boron tribremid*............. 1 C Boron trifiuorid*............. 1 Bromin*............................. ai Bromine pantafluoride.. Bromoform--Skin......... Butadiene (1. 3* 0.1 04 butadiene)..................... 1.000 Butaoathiol, aaa Butyl mareaptan..................... -- 3-Buunona....................... 200 3-Butoxy athanol (Butyl CaUoaoiva)--Skin----Butyl aoatata (n-butyl no aeatatc)......................... 150 ae-Butyl aeatata............. 200 tart-Butyl aoauta........... 200 Butyl alcohol................... aao-Butyi alcohol............. taruButyl aloohol........... 100 150 100 C Butyiamina--Skin......... 5 Curt.Butyl ehromata (a* CrO) -- Skin............. --* Butyl fiyeidyi athar (BGE)........................... 50 Butyl mamptan............. p-tart-ButyTtcJuana......... Cadmium (hiatal dam and aetabia aaka)........ 04 10 -- C Cadmium axid* Luma (an Cd)................................. -- Calcium aarhooau.......... -- Calcium aimaata............. CftitraxB -- Camphor (Syntbatie)... Carbaryl (Savin*)........... Carbon black................... 2 -- -- Carbon dirndda................. S000 Carbon dimlfida--Skin. 20 mf/M* -- 0.5 04 5 04 04 10* A" -- 5 5 0.002* -- 10 10 8 0.7 0.7 5 2400 -- 890 340 710 950 950 800 450 800 15 0.1 270 14 ao 04* 0.1* E 1 5 12 5 34 9400 50* Sahaiaaia Carbon monoxide............ Carbon tetrachloride -- Skin............................... Ceiluloaa (paper fiber)... Chlordana--Skin........... Chlorinated camphant-- Skin............................... Chlorinated diphenyl oxide.............................. Chlorine............................ Chlorine dioxide.............. C Chlorine trifiuoride......... C Chloroacetaldtbyde......... e-Chloroaeetophenone (phcnaeylchloride)-- CUorobanmne (moooehlorobenatne).. o-Chlorobcaiylidcne malooonitrOa (OCBM) -- Skin........................... Chlerobromomethana... 2*Chloro-i, 3>butaditn* aaa Chloroprena.......... CUorodiphenyl (42% Chlorine)--Sldn........ Chlorodtphanyl (54% Chlorine)--Skin........ 1-Chloro. 2.3* epoxy* propane, act Eplehlorhydrin............ 2-Chloroathanol. aaa Ethyiane ehknohydrin. Chloroathylana. aaa Vinyl chloride.............. *C Chloroform (triehloremethanc).... lChloro>l*oiUpiopanc. Chioropierin..................... Chloroprena (2-*hioro>l, 8-butaditne)--Sldn.. Chrecaie aaid and ehromata* (aa CrOj).. Chromium, aoL ehromia. chromouaaalteaaCr.. Metal A inaoi. aalta... Coal tar pitch volatile* (banaan* colubla frao* tion) anthracene, BaF, phananthrana, aeri* dine, ehrymn*. pyraca) Cobalt, metal fume A dun............................... Copper fume.................... Duata and Miata.... Ceruadum (AbOi).......... ** Cotton Duct (m).......... ppm*> 50 10 1 0.1 0.1 1 0.05 75 0.05 200 MO o-- -- -- -- -- (50) 20 0.1 25 -- Au A" mo -- -- mf/M*** 55 654 E 04 0.5 0.5 3 0.3 0.4 3 04 350 0.4 1.050 1 04 -- (240) 100 0.7 90 0.1* 0.5 (1.0) 0.2 0.1 0.1 1 E (1) In p 4 fw all unn DUp 0960074 -- CONFIDENTIAL I)l 040384 REV._ S2T P** 4 THUSHOLO LIMIT VALUIS Of AIMOINI CONTAMINANTS Anil I Ml TMt Paa laa iaaa 1473 M203 TAM 1 - AOOPTID VALUIS (CONTO) Subatanet PP" Crag* herbicide............... -- Crtiol (nil iaomari) -- Skin............................... 4 Crotonaliiahyd*............... 2 Cameo*--Skin............... Cyanide i*CN')--Skin. 40 <-- Cyanogen.......................... 10 Cyelohaxtne..................... 300 Cyclohex tool................... 40 Cyelobtxuona................. 40 Cyeiohexin*..................... 300 CydopanttdiaBt.............. 75 2.4*0................................ DDT................................. DDVP, ate Diehlccvoe.. -- Daeaborana--Slda..... Dematoa*--Slda........... Diaoatooi tloohel (4- 005 -- hydroxy-4-m*thyl- 2^waumoo*>................ 50 I, 2-Dfamiaoetbaa*. aaa Ethylmadlamina......... Diaainon--Skin............. -- Diaaomathana.................. 04 Diboran*........................... 0.1 *C 1,2>Dibrsmo*thae* (ethylesa dibromide) -- Skin........................... Dibrom*........................... (23) * 2-N Dibutyiaminoathaaol --Skin........................... 2 Dibutyl phoaphata.......... 1 Dibutylphthalua............. C Dichloncetyioa............. C oDtehlorjbanjtn*........... 0.1 40 ^-Dicbiorsbetmat.......... 75 '* Dichiorotanaidiaa-- Sldn............................... DichiorodUhioroaethana. 14100 1. 3-DiehLoro4, V dirntthyi hydantot*... ** 1. l<Dicbloroathaaa........ (100) 1.2-Dicbloro*tbaM........ 40 I. 2>Dtehloroathylaaa... 200 **C Diehlorotebyi atht*-- Skin............................... Diehloremathaae, aaa Mithyito* chloride,.. (14) Dichloroaionoflucro- nutbaa*........................ 14)00 C1.1-DichlorcM- oitroatbana................... 1.2-Diehioropropaaa, aaa PropyUnadUhlorid*... 10 mm Diehlojwutiafluopc* atbaaa........................... 14)00 an/M*** 10 22 6 244 4 -- 1.040 200 200 1.014 300 10 1 -- 04 0.1 340 0.1 04 ai (190) * 3 14 4 3 0.4 300 440 A* 4^50 04 (409 3004 700 (00) 4400 0 74)00 IfbaMnn Diehlorro* (DDVP) -- Skin............................. Diaidrin--Skin............. Diethyiamin*................. Dkthylamino ethanol -- Skin............................. Dfethyian* diamine -- Sins............................. Diathyiatbar, aaa Ethyl athar............................ Difluorodibromo- OMtbana....................... C Diglycidyt atbar (DCS). Dihydroxybanatna. aaa Hydroquinooa............ * Diiaobutyl katoo*.......... Diiaopropylamina-- Skin............................. Dimathoxymathana, aaa Matbylal..................... Dimatbyl anafimida -- Slda............................. Dimathylamia*.............. 4-Dimethylaminotaobanaaca....................... Dimatbylamiaobenana, m* Xylidana............a DinMtbylanilina (Jf dimathylaniUna) -- Skis............................. Dimathyibanaas*. aaa Xylan*......................... Dimethyl 1, 2*hbromo 2-diehlcroathyl phoapbata, aaa DiBiem.... Dimathyi/ormamid*-- Skin............................. 2. 5-Dimathylheptanona. aaa Diiaobutyl katana. 1.1-Dim*thyihydtada* --Skin......................... Dimathyipbtbalata........ ** Diaathylaulfata--Skin. Dinitrobanaena (all iaomtra)--3kin.......... Dinitroo>cnaol -- Skin. Dinitrotoluene -- Skin.. ** Dioxan* (Diatbylana dioxide)--Sldn.......... Diphenyl......................... Dtphigyi Diphanyimathaa* diitocyanat* (aaa Matbyiana buphanyl iaoayaaata (MDI).... It* piltf ll ntttt pn*4* mo/M1 --1 -- 0.29 29 74 10 40 14 ---- 100 04 -- (40) 9 mm 800 2J (200) 30 mm 10 35 10 18 mm A* --* s 28 ---- mm 10 30 -- 04 1 mm 4 ) (3) --1 04 14 100 300 as 1 mm 10 ---- DUP 0960075 I CONFIDENTIAL Du 040385 sea > o o UUl tHl Ni N| > Jww nya thiishoio umit valuis or ailioini contaminants sat > 7 TAMS 1 Aoorno vAiucs (Conto) *** ppm*' Dipropylene fiycol methyl ether -- Skin. Di>tec, octyl phthalate (Di-2-thylhe:tylphthalate)..................... Emery............................... 100 _ Endoculfan (Thiodaa*) --Sirin........................... Endrin--Sirin................. ms Epichlorhydrin--Skin.. 5 EPN--Skin..................... 1, 2-Epoxypropane, etc Piopyleaeoxide............ MO 2. S-Epoxy-l-propanol, see Glyeidol................. Ethans............................... EthansthioU see F Ethylmsrcaptaa........... CtlhamilAMSriri " 2-Ethoxyethanol--Skin. 3-EthoxyethylactUt* S (200) (CcUmoItc acatate) --Skin........................... 100 Ethyl acetate................... 400 Ethyl acrylate--Sirin... 25 Ethyl aleohol (ethanol).. 1,000 EthyUaine....................... Ethyl see-amyl ketone (5- 10 methyl-S-heptanose).. Ethyl b--M.................. Ethyl bromide................. 25 too aoo Ethyl butyl ketone (3- Heptanooe).................. 50 Ethyl chloride.................. IfiOO Ethyl ether....................... 400 Ethyl formate.................. too Ethyl mercaptan....... 0J Ethyl riliente................... 100 Ethylene........................... F Ethykne ehlorohydrin-- Skin............................... EthyienedUmine............. 5 10 Ethylene dibromide, ate 1.2-Dibromoethane... Ethylene diehloride, ate 1, 2-Diehloseathaae... 3 Ethylene fiycol dinitrate and/or Nitroglycerin-- 8kia............................... 03* Ethylene fiycol mono- methyl ether aortate (Methyl eaUoeohre ace tate)--Skin................. Ethyisnr imiae -- Sldn. 25 0.5 Ethylene oridc................. Ethyiidine ehloride, see so 1,l-DicUoreethane... mt/M**' 00 5 E 0.1 0.1 19 0.5 esce S (740) 540 1.400 100 1.900 18 190 438 890 290 2,500 1X0 aoo i ISO If 35 IX 1 w SuhttMM ppm41 N-Ethyimorphoiiae-- Skis............................... Ftrbara............................. Ferrovaoadium dun___ Fluoride (uF)................ X -- 94 10 1 2.5 Fluorine............................ Fluorotrichlorom*thane. *C Formaldehyde.................. Formic Arid...................... Furfural--Sirin............... Furfuryl alcohol.............. Geooliae............................ Glace, fibrous4* or duet... Glycerin mitt................... Glyeidol (2, 3-Epoxy-l- (0.1) 1,000 2 5 5 (X) -- -- -- (03) 5,900 3i 9 X (200) B* E E propoaol)...................... Glyeol moBoethyi sther, see 2-Ethoxyctfaanoi.. X _ 150 Graphite, (Synthetic)... Guthion,* see Ampbo. methyl........................... .-- -- E _ Gypsum............................. Hafnium........................... Helium.............................. Hepuchlor--Sldn......... Heptane (n-hsptans).... Hsxaehloroethane-- -- -- F -- 500 E 0.5 --. 0.5 2.0X Skin............................... HeuchloroBAphthaleae -- Birin............................ Hexane (o-bexane)......... 2-Haxanoae...................... Hexone (Methyl ieobutyl 1 _ 800 IX 10 oa 1JX 410 ketone)......................... eeo-Hexyi acetate............ Hydnriae--Skis........... Hydruftn......................... Hydrofta bromide.......... IX X 1 F 9 410 3X 1.3 -- 10 C Hydrogen chloride.......... 5 7 Hydrofcn cyanide-- Skin............................... 10 11 Hydrofta fluoride........... Hydrofta peroxide......... Hydrofta eeJeside........... Hydrogen sulfide............. Hydroquiaooe................. Indent............................... 3 1 0.05 10 -- 10 3* 1.4 0.2 IS 3 45 Indium and compounds, u la.............................. C Iodine................................ Iron oxide fume............... * Iron peatacarbooyl......... _ 0.1 -- 0.01 0.1 1 10 0.M Iron salts, soluble, at Ft. Iaoamyi aeetate............... leoaniyl aioohol............... Isobutyl acetate............... laobutyi alcohol............... IX IX IX IX 1 525 IX 7X 3X $ 4 f* I1 Mtff OUP 0960076 ----- I DU 040386 SIT *afm | TMIUHOU) UMI7 VAIUU OP AIHOfNI CONTAMINANTS TWi Peae 6ev June 1973 204 TAM 1 - AOOPTID VAUJIS (CONTO) SubMenei ppm?* laophoroita....................... Iaopropyi acetate............ Iaopropyi alcohol............. Iaopropyi amine............... Ieopropy! ether................. Ieoprepyl jlyddyl ether (ICE)............................ Vmnlin............................... -- 220 400 S -- SO mmm Ketene............................... 04 Lead................................... Lead ararnata................... limestone......................... -- Lindane............................. Lithium hydride.............. L.P.G. (Liquified petto- leua gta)...................... Magnetite........................ Macnariiim oxide fume.. Malathioa--Sldn........... Maleio anhydride............ -- 1MO -- -- 048 C Manganese aad compoundi, ae Mn............. Marble............................... -- Mercury (Alkyl emupoundi) --Sldn........... -- Mercury (All forma ex- cept alkyl).................... Merityl oxide................. Methane........................... Methanrhiol. we Methyl -- 23 r smi'tia.................................. Methoxychior................... -- -- 3-Methoiyethaaoi--8Ua (Methyl eelloaoive)... Methyl acetate................ Methyl teatylese (pro- pyne)................................................... Methyl acetylene- propadiene mature (MAPI?)......................................... Methyl acrylate--8lda. Methylal (diaethoxymethane)........................................ Methyl uloohol (metht not)........................................................ Methyiamine................................. Methyl eayt alcohol, aee Methyl iaobutyl earbiaol................................. Methyl 3-cyanoeerylaM. Methyl iioaayl katoue.. Methyl la-aayl) ketone (3-Heptanooe).............. * Methyl tiumide--31da. Methyl kutyi ketone. ne 2-Hexinooe................... Methyl etlloeotve-- Skin am 3-Methoxyethaaol. 29 200 1400 uooo 10 uooo 200 10 3 100 100 # 4 fm* U mm -- 930 980 12 MM 240 E as _ ais E 04 0423 1400 E 10 10 1 9 s 041* 043 100 -- mm* 10 80 610 1.680 1400 88 3,100 380 13 -- 8 473 468 . MM SubeMMe ppm*' Methyl oeiloeolve acetate -- Skin, ate Ethylene glycol monomethyl ether acetate................ -- -- Methyl chloride.............. 100 310* Methyl chloroform......... Methyicydohexane........ Methylcydohexanol____ 330 300 (100) 1400 2400 (470) ** o-Methyicyeiohexanone- --Skin........................... (100) Methyicydopentadieuyl (460) manpneaa uicarbooyl (aa Mn)--Skin........... Methyl demeton--Skin. Methyl ethyl ketone 0.1 04 04 (MEK). tee 2-Bu- taaeae....................... MM _ Methyl formate............... Methyl iodide--Sldn... Methyl iaobutyl earfainol 100 3 230 28 -Skin........................... Methyl iaobutyl ketone. 23 100 eee Hexooe................... MM enM Methyl iaoeyaaate -- Sldn............................... Methyl mercaptan.......... Methyl methacrylate___ Methyl pamhioa--3km. Methyl propyl ketone. me 2-Pentanooe.......... C Methyl biicate................. C a Methyl ayrtM............. 0.02 04 too -- -- 5 100 0.03 1 410 04 MM 30 480 C Methylene biapheayl ian- eyenate (MOD............ 0.02 04 Methylene chloride (dichioromethane).......... (300) Molybdenum (1.740) (aoiuble compound*).. (inaolublt compounda). -- MM 3 10 Mooomethyi aniline -- Skin...................................................... 2 9 C Moooffiethyl bydrarin* --Skin............................................... 04 043 Morpholine-Sldn......... 20 70 Naphtha (ooal tar)................ 100 400 Naphthalene.................................... 10 30 9-Naphtbylaaina............. -- A" Neon.................................. p MM Nickel carbonyl............... 0401 A** 0.007 Nickel, metal and aolubi* compounda (aa Ni)... Ml 1 Nicotine--Skin................ 04 Nitric add.......................... 2 3 Nitric oxide........................ 23 30 p-Nitroaoliiae--Sldn... 1 6 Nitrobenaana--Skin.... 1 3 p-Nitrochlorobenwoe -- Skin................................. -- 1 OUP 0960077 ->y jS 1 LU . U_i O DU 040387 aoi i I Am if* i TW >ii lav June If73 THRUHOtB UMIT VA1UCS Of AIR.BOINI CONTAMINANTS S 2T He* 1 TAIU t - AOOmO VALUES (CONTD) liibtlww ppei 4-Nitrodiphenyl.............. -- Nitroethaae........... v -- Nitrogen................. .\... C Nitrogen diendt............. 100 F 5 Nitrogen trifluoride......... 10 Nitroglyoerin -- Skin.... 0.2 Nitromcthanc................... 100 1-Nitroprepane................ 25 2*Nitropropane................ 25 N-Nltrceodimthylaminc (diraethylnitroaoamine) --Skin........................... Nitrotoluene--Skin.... 5 Nitrotriehloromethane, tee Cbioropieria........... -- Nitrone oxide................... Oetaehloronaphthalepe F --Skin........................... -- Octane............................... 400 Oil miat, paniculate.... -- Oil miat, vapor................ Omnium tetroxide........... -- Oxalic arid........................ -- Oxygen difluoride............ 0.05 Oaooe................................. Paraquat--Skin............. 0.1 -- Paratbion -- Sirin............ Pentaborane..................... 0.005 Pentacbloroaapbthalene -- Skin.......................... Peatachloropbenol -- Skin........................... Pentaerytbritol................ -- -- -- Pentane............................. 500 3-Ptntanooc..................... 200 Fenbloroctbyiene........... 100 Ptrcbloromethyl mercaptan..................... 0.1 Perehloryt fluoride........... 3 Petroleum Dietillatet (naphtha)..................... iBi Phenol--Skin................. 5 p-Phenyiene diamine -- Skin............................... -- Phenyl ether (vapor).... 1 Phenyl ether-Diphenyl mixture (vapor)........... 1 Phenyinthyiene, eae Styrene.......................... -- Phenyl gfyeidyi ether (PGS5.......................... Phenylhydruine--Sirin. Phenothiaxiae--Skin... Phoedhn (Mevinphoe)* --Skin........................... Phoagene (oarboeyi chlo- ride)............................... Phoephine......................... 10 5 --- *-- 0.1 OX me/M*** A* 310 -- 9 29 2 250 90 90 A 30 -- -- 0.1 1.900 5" -- 0X02 1 0.1 OX ox 0.1 0X1 0.5 0.5 1X00 700 670* 0.8 14 -- 19 0.1 7 7 -- 00 22 5 0.1 0.4 0.4 Sehtienee Pheepherie arid............... Phoephorue (yellow) -- Phoephorue pentachlo* ride................................. Phoephorue pentaeulflde. Phoephorue trichloride.. Phthalic anhydride......... Picrie acid--Skin.......... Pival* (2-PivalyM, 3- iadindioM) Plaeter of Parie................ Platinum (8oluble SalU) aePt............................... Polychlorobipheayie, eee Chlorodiphenyie........... Polytetrafluoroetbylene deeompocition prod* ueu................................ Propane............................. B Propiolaetone............... Propargyl alcohol--Skin. n-Propyi aeeute.............. Propyl aleohol................. n-Propyi nitrate............... Propylene diehloride (1. 2-Dichlorepropane)... 'Propylene glycol mono* methyl ether................. Propylene inane--Skin. Propylene oxide............... Propyne, eee Methyl* acetylene....................... Pynthrum........................ Pyridine............................. Quinone............................. RDX--8kin................... Rhodium, Metal fume and duete (ae Rh).... Soluble aalta............. Ronnal............................... * Roain Core Solder. pyrolyrie produete (ae formaldehyde)............. Rotenone (eemmardal).. Rouge................................ Selenium compound* (ae Se).................................. Selenium hexafluoride... Siiitiof* ........ Silver, metal and aoluble eompouade................... Sodium fluoroaoetnte (1080)--Skin.............. Sodium hydroxide........... Starch................................ Stibine............................... Stoddard aoivent............. Strychnine........................ PPW1 -- -- -- 0.5 3 -- -- -- -- F 1 300 300 25 75 100 2 100 B. 5 0.1 -- --- -- -- -- -- 0.05 -- -- -- 0.1 200 -- mf/M**1 1 0.1 1 1 3 12 0.1 0.1 E 0.002 B` A* 840 500 no 350 360 5 940 5 15 0.4 1.5 0.1 0.001 10 0.1 5 E OX 0.4 E 0.01 0.05 2 E 0.5 1,150 0.16 !>* p 4 for all M> DUP 0960078 CONFIDENTIAL DU 040388 S 2T |1 10 TMttSMOtO UMiT VAUICS Or AUMOtNI CONTAMINANTS AMIL 19*1 N 304 TAIL! 1 - AOOFTIO VALUU fCONTO) 1 1 % Subtience pperi* StjTen# 'Monomer) v Phenyl ethylene)------ 100 Suctom.............................. Sulfur dioxide................... Sulfur hoxafluorid#......... Sulfurie tcid..................... 5 1X00 -- Sulfur monochioride------ 1 Sulfur pontafluoride........ 0X25 Sulfuryi Huoride.............. Svitox, in Demetcn*... 2.4. S T............................ Tantalum......................... TEDP-- Skin................. 5 a* -- -- -- Teflon* decomposition product*........................ <-- Tellunuia......................... -- Tellurium hexafluoride.. 0X2 TEPP--Skis.................. -- CTerphenyls....................... 1 1, 1. 1. 2-Tetrehlof-2, 2-difluoroethane........... 500 1, 1, 2, 2-Tetraehloro-l. 2-difluoroethane.......... 500 1.1, 2, 2-Tetrachloro* ethane--Skin.............. 5 Tetraehhroethylene. eee Perchloroethylene------ Tetrachloromethaae. tee Carbon tetrachloride.. Tetrachloronaphthalane --Skill........................... -- -- -- Tetraethyl lead (u Pb) --Skill........................... Tetrahyilrofuran............. Tetmnethyi lead (aa Pb) -- 200 -- Skin.......................... -- Tetramethyl eucoinoni- txile--Skin................. Tetrauammethane.......... Tetryl Cl. 4. 8- OX 1 trinttropbenyi- aathy lnitramine)-- Side................................. -- Thallium (eoluble oom* poundi)--Skin (a* TD. Thiram1'............................. a -- Tin (inorftni# eompounda. except SnEe and SiiOt) aa Sn.......... Tin (or*anie oompounds) --Siua(a.3nX............ Tin oxide.......................... Titanium dioxide............. ** Toluene (toluol)............... C Toluene-2,4- diisocyanat*.................. oToluidine........................ -- -- -- -- 0X2 5 420* E 13 8X00 1 0X5 20 -- 10 5 OX B* 0.1 OX 0X5 9 4.170 4470 35 -- -- 2 0400" 500 0.150" 3 3 IX 0.1 5 2 0.1 E E --* 0.14 22 Subetaae* IPMP,HW ) Toxaphene. tee Chlorinated eamphene.......... Tributyl phoephate........ 1. 1. l-Trichloroethane. ace Methyl chloroform. -- -- -- 1, 1, 2-Trichlotoethanc -- Skin........................... 10 Trichloroethylene............ 100 Triehloroaethane, ice Chloroform................... --* Triehlotonaphthalene -- Skin............................... 1.2.J-Trichloropropane. -- 50 1. 1. 2-Trichlora 1. 2. 2* trifluoroethane............. 1X00 Triethyiamine.................. 25 Trifluoromonobroao- methane........................ IXW Trimethyl beneeae.......... 2,4. S-Trinitrophenol, eee 25 Picric acid.................... 2, 4. 8--Trinitrophcnyl- methyl&itnmine, m Tetryl............................ Trinitrotoluene--Skin.. m_ Triorthocrteyi phoephat*..................... Triphenyi pheaphata.... a Tunceten * compound*. aa W Soluble....................... Insoluble................... Turpentine....................... Uranium (natural) aol- uble * inaoiuble oom- 100 pound*, aa U................ Vanadium (V*0*), aa V Suet.............................. C Fume............................. Vinyl aoetate................... 10 Vinyi btnaene. eee Sty- nu.................................. Vinyl bromide................. Vinyl chloride................... 250 200 Vinyieyanide. we Acrylonitrile.................. -m Vinyl toluene.................... Warfarin........................... 100 m `Wood duet (aonaUerfKue)............. --* Xylan# (xylol)................. 100 XyUdine--Skin.............. Yttrium............................ See chloride fume......... 5 -- Zine oxide fume................ Zirconium compounds (ea Zr)............................. mt/M**' -- 5 -- 45 535 -- 5 300 7.800 too 0400 120 mme IX 0.1 3 1 5 500 OX ox 0X5 30 mam 1.100 770 mme 440 04 5 435 25 1 1 6 5 >9 U-2 Cd 2 O CJ> $ 9 4 far til DUP 0960079 DU 040389 *07 ANUl mi TUt paa* kmm 1773 thruhoio UMIT VAUIU 07 AIMORNI CONTAMINANTS * 2T Nae 11 T**U 3 - MINIIAl OUSTS lahstaaaa nu4kp.fJ.n SILICA Cristobalite, Crystalline........... Das one-half tha vahro eat* eulated from tha oount or maaa formulae for quarts. Amorphous, mdnding natural diato* maoaous earth. ..................... 30 'Quarts TLV in mppof: 300** % quarts +10 TLV for rmpirmbia dost ia mg/m1: 10 mg/m'** Raapirabia quana + 3 TLV for "total dust." ras* pirahio and aaanspirabla: 10 mg/m1 & quarts+ 3 Sifioa. fused Oise quarts formulas Suhatmiaa Tridymite Use oat-half ths value aalculated from formulae for quarts. SILICA TS (C 2% quarts) Aabaatoa, all types. Mica........................ Perlite...................... Portland Casuant.. fioapatooa................ Tale (aon-asbastiform).................... Tile (fibrous) aso asbestos limit.... Trtaoiite (sst Tale. fibrous)................ Graphite (natural). -- go 10 SO 30 90 15 NUISANCE fARTICUUTBS (ate Appendix E) 30 mp.p.p.eX or 10 mg/m* of total duat < 1% quarts (^onvtnion factors mppef x 35.3 million particles per eubie swttt - ptruchm pmr .e. 1 s i) Millions of partieiss per cubic foot 0/ air, baaed oc impinges aemplaa counted by lishft-Add taeimiei. j) Ths parwntaga of quarts ia the formula is the amount determined from airborne mpits, axoapt is those mstanrti ia which other methods have boss shown U be apptioabts. k) loth aoosaatratioa and pmnt quarts for tha application of this limit art to ba dattrmintd from tha fraction pass* ia( a Maamdecter with ths foliowifif charmetariatsoe: Aerodynamic Diameter (am) (unit density spban) 33 3.5 34 54) 10 % passim stiaetor go 75 50 35 0 1) containing <1% quarts; if quarts ooo> tant > 1%, uas formula* for quaru. ** NtUaW bwM Chaaati In Manl Out. 2 vihwt n hihI * ySr OSHA aa' 1910.73. + OUP 0960080 DU 040390 KtV. S2T n >a mtMHoio uMtr valuis OP A1MOINI CONTAMINANTS Ana mi TW Pege Sev Jese UTS TAMS 3 - NOHCI Of INTINOID CHANOU tier 1973) Thcee subataneea, with their correspond ing vaiuts, comprise thoM (or which either i limit hee beta proposed for the lint time, or lor which change in the "Adopted" listing hee been proposed. Ia both caeca, the proposed Umita should be oonaideied trial limita that will remain ia the listing for a period of at least two yean. If, after two ytais no evidence comes to light that ques tion the appropriateness of the values herein, the values will be reconsidered for the "Adopted" list. Documentation is available for each of these substaaots. Sufciteace ppm4* aif/M*** Acetaldehyde................... C Acetic anhydride............. Ammonia........................... Bay goo.............................. Bismuth telluride............ Bismuth telluride (Sed>pcd)........................... Butane............................... * Caprolactam (2-Oxo- hexamcthylcaimiae) Duet........................... Vapor......................... * Carfjo/uran -- Sirin......... Chleroform (trichloro- methane)....................... * bis-Chloromethyl sthcr.. * Chloromethyl tthcr......... * o-Clilorotolueno............... * Cotton dust, raw............. Cj-eiobexj-iamin#............. 1. 2-Dibraoorthane (ethylene dibromide)-- Sl:in............................... 1, 1-Dichioroethane........ Dichloroethyi ether -- Skin............................... Diiarbutyi Iteteae........... * Dimethyl sulfate--81ria. * Dioxane--Skia............... Diquat............................... Duvston--Slda............. 2-Ethoxyethanoi--Sirin. too 5 23 MS 500 5 was 23 -- . 50 10 20 200 3 23 -- 50 -- 100 iao 20 18 03 10 3 1X0 1 25 0.05 120 A* A_1* 0.2 40 143 820 30 130 A* 0.3 0.1 370 isksiMt PP" eig/M Ethylene glycoi, particulaw................................. -- Ethylene glycol, vapor.. * Ethylidcne oorbornene.. Fluorine............................. Furfuryt alcohol............... 100 oa i 5 Germanium tetrahydride (Germane).................... 03 * HtxichloroeyolopeaM- ditnt.............................. OOl Hcxafluoroacetons........... Isophorone........................ Isopropyl ether................ Lead, inorganic com* pounda fumes k dusts. 0.1 10 250 -- * Manganese eyelopeota- dienyl tricarbonyl (u Mn) -- Skin................. -- Methyiaerylonitriie -- Slda............................... 1 Methyl bromide--Skin. 13 Methylcyclohexaool........ o-Mcth.vleycloboxsnooe 50 --Skin........................... 30 4-4'-Methylene bis (3ehioroaniiiae) -- Skin. oxa *C Methylene bis (4-eycio- hexylene ieocyantte).. OOl * Methylene chloride (Diehloremethane)___ 230 *C Methyicthyi ketone per- oxide.............................. Mineral stool fiber........... Paraffin wax fume........... C Phenylphoephino............. 0.08 * Phoruto (Thixat*) -- Skin............................... -- Silicon............................... -- * Silicon tetrahydrids (Silane)......................... 0.5 CSubtilisine (Proteolytic ensymes as 100% pure crystalline ensyme)... Sulfur tctraOuoride......... 0.1 Toluene............................. * Zinc stearate.................. 100 -- 10 230 0.0 2 20 0.0 0.1 0.7 33 1.030 0.13 0.1 3 00 233 230 A* 0.11 890 1 E l 0.23 0X5 io 0.7 0.003 0.4 375 E i! t a) Parts of vapor or gas per million parts of oontaainatod air by voiume at 25*C and 760 mm. Hg. pressure. b) Approximate milligrams of particulate per cubic meter of air. m) Lintfrcedustaa measured by the vertical* clutriator. cotton-dust sampler described in the Transactions of the Xntionni Con ference on Cotton Dust. J. R. Lynch, pg. 33. May 2. 1970. DUP 0960081 CONFIDENTIAL DU 040391 A MIL mi THa N-- lr> Mtna 1973 THUSHOID LIMIT VAUIIS 0^ AO-IOINI CONTAMINANTS s2r ' 13 i i > UJ ***** 4 - NOT1Cl OS INTINDID CHANOSS - MINttAl OUSTS kkriHH HV Atkaataa(alltypaa) Cm! dual (kdammaa*) PtrUu S fibm/al > Silk kaith*'Au 2 mg/M1 (ratpinbk d*t',fraeioo < 5% quin) tf >&% quarts ast tatpirabk mu formula SOmppaf Silks flnr Tripoli Uta ratpirabk matt famula tar quarts Um rmphrabk man formula tar quartz () UknM by Iba aiakrut Stti aathad at 400--450 X atfaifieacba (4 mm otyaoiva) phaat oelrut ajuaiiiiika. Cttwamnoai S ibtrm/ml kui ax to tzctad 10. may be parmintd far IT bAttit parisd* aack hear up to livt date daiy. if) "Raeprakk" dan aa dkiaad ky iha Bikiak Mtdfcal laetareb Game! Critaria (1) aad aa eaapkd by a dtvk* ladacia( equivtkat naulla (2). 11) Haleb. T. E. aad Croat. P.. Pulmonary Dtpoahioa aad Rattutioa af lakakd Aaraaola, p 149. Acadtark ' Piatt. Ne Yack. Na Yatfc. 1964. (2) Iaarim Gaid* far Bankable Maaa Sampiiif, AIHA Aaraaol Taakaoiagy Canaion. AH IA J. 31: 2. 1970, p 133. 17f2 lavWoa ar Addltiaa -o o + TAM S - ACCSPTAMS TWA. CSIUNO AND PEAK C0NCINT8AT10NS AmmIbUd MAtUmaBH lub Material Bieataal ANSI 237.4-1969) Buryilhaa aad baryllhaa cotaaoaads (237^9-1970) Cidaiiuwi An* (237.S--1970) Cufaalw dual (237.5-1970) Ctrioi dkulSdr (Z37J-1968) Ctrhoa mraeblorid* (237.17--1967) Eibvkat dibraiaidt (237.31 -- 1970) Elfcykat dfcUaridt <237,21--1949) Fuiaialdthyd* (237.16--1967) Hvdrafta Saaridt (237.28--1969) Fluoridt at dual (237.28--1969) Laad aad he aaergaak eampouads .237.11-1969) Mitbyl cblarid* (237.18-1969) Mubykaa chloride (23?J-1969) Orgeat (alkyl) mercury 123730-1969) Srtrcat (237.13-1969) Tikkloraaikylaat (237.19-1967) T(irachlaraaikykat (23722-1967) Toluene (237.12--1967) Hvdroftaeuifdt (237.2--1966) Mireury (237J-1971) Cliranie arid aad akrooMltt 1237.7-1971) AHeurTime Waited Averopo 10pp 2m/M> 0.1 a^/M 0.2mf/M> 20 ppm 10 ppm 20 ppco SOppai 3ppa 3pp 2-3m*/M' 0Jb(/M> 190 ppm 300ppai 0.01 mf/M* 100 ppm 100 ppm lOOppai 200 ppa Aattpdabla CaHInfl Cxtctntralin 25 ppa 3 mg/M1 0.6 mg/M1 30 ppm 25 ppa 30 ppa 100 ppa 5 ppm 200 ppm 1000 ppm 0.04 ag/M* 200 ppm 200 ppm 200 ppm 300 ppa 20 ppa 1 mp 10MJ 1 tag/ 10M1 Akova da Acceptable Ceiling Camawtralaa lar aa I-Haur Ihi* IWHUH SO ppa 25 p g/M' 10 aiaum 30 ainutn 100 ppa 200 ppa 50 ppa 200 ppa 10 ppa 30 aiaum 3 aia ia aay 4 hr 3 aia 5 aia ia any 3 hr 30mia 300 ppm 2000 ppm 600 ppm 300 ppa 300 ppa 500 ppa 50 ppa 3 min ia an\ 3 hr 5 mis ia unv 2 hr 5 aia ia anv 3 hr 5 aia ia anv 2 hr 5 aia ia anv 4 hr 10 min 10 ainutn one*' * 10 minute oact eaiy if no atbar aaaaurabk txpoaurt oecura Penient touted ia rat am srtWMlffd uotar OSHA pmr ItlO.tt. DUP 0960082 DU 040392 S 2T bopo 14 TMISHOID LIMIT VAUIU OP AILSOKNI CONTAMINANTS APtll 19*1 TMa Pato Cow luao I97S u no APPINOOC A APPttfDK Tht- Committee lisle boiew these ibtuita tadue- trial in that hava prove* carerioftak ri rnaa or have induced :aanr ia aainale tatdor experimental eoadihou. Prcnit liatiag of that* Mihmaaaa eartioogtaie lor mo* talua t' forme, tfaoaa (or which a TLV haa haca aligned (la), tad lhata far whichnviroameatalcoodl* liaaa htive aat baaa aaffioandy defined ta aaaiga a TLV(lb). B1 Nlytotnluoraotbylono* dacompoiMoA produett. Thermal decomposition of the fluoroearboa ia air leada to the (anaadoa of sxidried prodacta coatariiag carbon. fluorine aad oxygea. Bacaoae then prodacta dacoapoae ri part by bydrolyiri ia alkaiiaa eoludea, they caa bo paudlriivaiy deterotriad ia air aa fluoride ta provide aa rides of txpoaure. No TLV ia rarenaadad psadiag dearmriadon of the taarihy of the pcoduita, bat air eoanoffadoaa ebooid bo wbiwl- la Human Carcringana -- Sahauaaaa known ta ba occupational carriaogaaa with aa aaa%aad TLV: Aebietoc, S fibara/ec > 5pm ia Icsgtb: certain ia> seluoie ekreauteo, 0.1 mg/m*-. caal tar pilch valatilta, 200 ppbe aidial carbonyl 1 ppb. lb Human Coralmg ana -- Stibelanrts kaawa la ba orcups daaal eartriogns without aa aaaifaad TLV: 4--Amriodipheayi Braidiaa fit ha aalta bir--Chlorametbyi atbtf Chloromethyl atbar bata--Napribytaauaa 4--Nkrodiphesyl B* Ooaalino and/or Pateoioan Blcflflatoa. The eoapaaidoa of than aaaiartala varin greatly aad that a triple TLV for all typea of than natniala ia ao loafer applicable, la general, the aromatic hydro carboa caaaat will ditonarit what TLV applin. Coaeaqantly the coatan of boaaaaa, other aromatic* aad addidvn should bo datanaiaid to arrive at the appropriau TLV (EBtria, at ai. A1HAJ 24(99, 196S). * Tndo Nance: Algofioa. Floou. Halm, "Tefloa." Tetna APPtMMX C ThrwsKeld limit Volwoe ior Mhilarn For tba eolwooon ta lb, ao aapaaaia or caatacl by may nmH, rcapiratacy, aicia or oral, aa datactad by the taoat aaathtva method*. ahall be panaJnad. "No npaeure eoatact" meaas harmkiirig the procna or oparatioa by the beat |tractiaabia aa|iaatria| atthoda, aad protecdag the woriarr by proper oquipawat that wfll taoun virtually ao coocart or aaory of the eeraaofaa by aoy room. 2 hpar-noiMai Garolnefaei* -- (adaatrial aubattacaa found to be a/ high pataaey ia iadaaiag taaiara uader experimental toadhioaa a aaimaltt 2--AcocyiaaieofleeraM 3.3'--Dkhlerebtasdiaw 4--DkaatkylanrioaiebaajMo Diarthyl sedfittt Ethyleaiarie 4,4Mathykne bri (2--ChloroaaiUoe) N--NiwoeadJmtbylaarie bata--Propiolacton For the above, werhar eapoaura by all roalaa ahauld be radacid to a miaimnm ia Ufht of the wanrip of tht poteaey of lhaaa cahaiaarm to iadaca ttaaora ia aairiala. "Redoead to a minimum" aeeae eatraordriary eara hall be takn both ia maaufaetare aad ri haadlrig to that worker npoauia by ail roam ia kept to aa irtadatibia taiaiama. When two or note basardoae sithwanrwi are prev ent. their coatbiead effect. rather thaa that of either individually, should be given primary eoneidererioa. Ia the absence of iafonaatiea to the cootrary, the efacta of the different haiarda should bo conoidend aa additive. That ia. if the can of the following fracdoca. C, t C, T, T, T. unity, than the throahold Umk af the tabetaev ahould be coeaidered aa bang exceeded. Ct ladkam the obaerved atatoepherie coanatratioa. aad Tt theeoc mpondiog throahold link (an Exanpie lAm aad IX*). Exeeptiooa to the above rale aeay be made when there ia good reaaoa to believe that the dtfef effect* of the different harmful aahttanen are not ia fact additive, but independent, u when purely loeal efbete on differeit orgaaa of the body are produced by die varioua eat* poaeate of the nixtare. Ia each caaoe, the tfarahoid Balt ordinarily ia exceeded oaly when at local oae member of that o CJ> -- or * -- an DUP 0960083 Unalf boa a vatua eaaeadrig aahy (eoa Example LAe). DU 040393 APUL t#*l 211 This Pope > June 1111 THtiSHOlD LIMIT VALUIS OP AIMORNI CONTAMINANTS S 2T Nit 15 AnugotiiMfc action or potentiation my occur with cone combinadoM of atmotpherfe contaminant*. Sued cim t prcoeai mud be determined individually. Potenti ating or anugoaialic agent* arc aoi occnaarily harmful by thcmielvt*. Poicntiaiing cflceu of expoture to aucb agtats by roam other than that of iahalitioa it aito poniblc, t.g.. imbibed akobol and inhaled narcotic (trichloroethylene). Potentiation it ebaracteritdeally exbibited at high concentration*. leu probably at low. When a given operation or promat ebaraettritlieaUy emit* a number of baneful dutu. funis*. vapor*, or gaaa*. it frequently will be only ftalible to attempt to evaluate the haxard by meaaurtmeat of a tingle tubtuace. la tucb case*, the dmahold limit oaed for tbit tubetaace thould be reduced by a tuitable factor, the magnitude of which will depend upon the number, toxi city, aad relative quantity of the other teataminanta ordinarily preaeaL Exampler of proemtet which are typically attociated with two or more harmful atmoapheric contaminant* art welding, automobile repair. Matting, painting. lac quering. certain foundry operationa, dietel exhaaata. etc (Example 2 in lA.a). EXAMPLES Example No. 2: Air contains 200 ppm of bcxaae (TLV 500 ppml 100 ppm of methylene chloride (TLV 500 ppnrMnd 20 ppm of perchlorethvlene (TLV * 100 ppm) Atmoapheric concentration of mixture 200 100 20 32U ppm of mixture 22P . 12 , JH . 200 100 100 400 ,,. 500 500 100 500 -- * 500 * 0 8 Threshold Limit is net exceeded. The TLV of this mixture 320 03 * PP" 1 A.b. Spado! aaaa when the source of contaminant is a liquid mixture aad the atmoapheric composition ii stuswad to bt similar to that of the original material; e.f oa a time-weighted average expoeure basis, all of the liquid (solvent) mixture eventually tvaporataa. Additive effect* (approximate solution) (1) The percent composition (by weight) of the liquid mixture ie known, the TLV* of the coastitueat* must be lilted in mg/ M*. lA.o Oeaoral tana, wham air it analysed for each component a. Additive adeem. (Nam> It in easestial that the atmoaphere be aaaiysed both qualitatively aad quanti tatively far each compoaeat present, bt order to evaluate compliance or noocompliaace with tbit ealcuiated TLV.) c, c, c, T, T, (Nate: la order to evaluate compliance with this TLV. field tampbag instruments should be calibrated, ia the laborasory. for response to this specific quantitative aad qualitative air-vapor mixture, aad also to fractional coaeentrationa of thia mixture! c-f.. V: the TLV: Via the TLV; 2 X the TLV; 10 X the TLV; etc.) TLV of mixture U % TLV. *TLVb I `c TLV' TLV, No. It Air aoatataa S ppm of carbon tetra chloride (TLV 10 ppm) 20 ppm of ethylene bichloride [TLV 50 ppm) aad 10 ppm of ethylene dibromsde (TLV 25 ppm) Atmctpbtrie coacaatradea of mlxtare laamplp No. 1: Liquid setveM contains [by weight) 50% heptaae (TLV 2000 mg/M') 30% methylene chloride (TLV 1740 mg/M*) 20% peechiorethyleae (TLV . 670 mg/M*) 5 20 10 35 ppm of mixture TLV of mixture ' 1 ~6T..rnrjT'ftr 10 50 25 25 20 20 50 13 o Threshold Limit is exceeded. Furthermore, the TLV 2000 T740 670 1 of ibk mixture may be ealcuiated by reducing the total 0.00025 0.00017 0.0003 iractioa to 1.0; i.t,, TLV ef mixture 27 ppm 335373 * 1390 "*/M1 OUP 0960084 DU 040394 $at Pip u TMtISHOLD LIMIT VAIUU Of Alt.tOKNI CONTAMINANTS APIIL 1*41 This N|t >o* Juno 1*73 N 212 Of thii mi.Mupt: SO* or 695 m*/ VP it heptaat. 30% or U* mo M' is methylene chloride and 2U% or 278 mg/ M' is percitlorethylen* Thtx values coo be converted to ppm as follows: hsptntis: 2000 mg/M1 300 ppm 1 mg/M* * 0.25 ppm 695 m?i M1 *174 ppm methvltnt i.'hioridc 1740 mg/ M* * 500 ppm l mg/ M1 * 0.287 ppm U7 mg/M* * 119 ppm perehlorathyleo*! 670 mg/M1 * 100 ppm 1 mg/M* 0.13 ppm 278 mg,- M-* 42 ppm The TLV ol this mixture 174* 119 *42 335 ppm. l.A.e Inde-pendant Ifcrt. Air contains 0.15 ttg/m3 of lead (TLV, 0.2) tad 0.7 mg/m* of sulfuric acid (TLV, 1). 0.15 ... 0.7 ., 020" ''<3s 1 " 0-7 F.P. (6) T Frf,* T FiPia . F.p,*^ T, T, FnPn0 r . ^nPna tad solving for T. (6.1) T . FiPt * FtP:frPr mmmmmm * oo# * Rmmms T T, T. or j` " P'iPi*' i l (6.2) T r,p,a T. Threshold limit is aot ssceedod. II*. Geasral tutt selwioa for mixtures ml N com ponents with additive effect* and different vaporpcsesuree. (1) fl .h. .h T, *T,WT. * l: T Threshold Limit Vaiur m ppm C eoneeatratfoa ia ppm p Vapor prsaaan of component in solution pO Vapor prtaaura of purr compoeent F > Mol fraction of tampoiwtu ia solution a A constaat of proportionality (2) C, C,C, T: Sabaeripu 1. 2, ... a ratals tht above quantities to compoatata l. 2.... a. rmpeetiveiy. i(2.1) T 1. By iba Law of Partial Pressarm. (3) C, ap,. and by Baoak't Lav. (4) P, F,p,*. Sabaerlpt i refer* to aa arbivary eompoarat from l to a. Absence of subacripf raials* tbs quantity to the mixture. ILb. Solution to bo appiiad when tbarr ia a reservoir of tht solvent mixture whoa* compositioa dot* aot change appneiably by evaporation. fo* SitswuSi tarn-- i foiiVi astoi Combia* (3) aad (4) to obtaia (3) C, Combiamg (1), (2,1) aad (5), wo obtaia TrfcUes*. Vylmsll) 131.4 MafeyhOfo rafono IS) 133.43 Italy AV ee* ue t.4*r-J too 73mm H* 133* al 330 USmvM MnMw to MhMi 0337 04n o C_3 DUP 096008S DU 040395 APttll IV# I /' \ TM. N..l Juno msor - THRESHOLD IIMIT AIK-EOENE CONTAMINANTS VALUES >n 17 ; i 31 > F,p, (0527) (73) * 585 F,pj (0.473) (12S) - 595 -------- 38.2 595 (97.4) (350) TLV 35.S', 595 13X5 * ITT 100 350 TT V V 055, 055 . 05 25 To" 20 75 mppcf The limit for 25% guartt approximates g mppcf. APPEND# 0 Permissible Eaeurilon* tor lime-Weighted Average (TWA) Umita . (97.4) (350) ----------190--------- 177 TLV* 177 ppm (Not* difference ia TLV when account a taken of vapor procure cad awl fraction ia comparicon with above cample when each account la net taken.) 2. A mixture of one part of (1) parathioa (TLV, 0.1) and two pane of (2) EPN (TLV, 05). 0.1 05 * t! C, *2C, C. sc, E> .iS 0.1 * 05 * T_ Tm * y. 051 mg/M* 1C TLV for Mixture* tf Mineral Ouata For mixtarat of biologically active mineral duata the geaerai formula far mixture* may he need. For a manure containing SOX talc and 20% guana, the TLV for 100% af the mixture la given by: nv orhi * 20 25 Eaaendally the earn* rnauli wil ha obtained if the limit of the mere (meet) toxic competent ia need provided the efiecta are additive, la the above example the Unit for 20% guana ia 10 mppcf. For another mixture of 25% guartx. 25% amorphoua lilies. and 50% ink: The Exeuraion TLV Factor ia the Table automate* cafly define* the magnitude of the permiaaible exeuraion above the limit for thee* aahatenets not given a "C" detignatioa, U- the TWA Uaiita. Example* in the Table ahow that nurobeuan*. the TLV for which it 1 ppm. never afaould he allowed to exceed 3 ppm. Similarly, carboa tetrachloride, TLV 10 ppm. never abould be al lowed to exceed 20 ppm. By contract, ihote tubatenet* with a "C' detonation are aot subject to the exeuraion factor and autat be kept below the TLV. Thete limiting exearaioat are to be conaidertd to provide a 'rule-of-thumb' guidance for litled aubataace* gtaeraily, and may not provide the moat appropriate exeuraion for a particular aubaune*. Effort* are beiag mad* to develop inch specific exeuraion*. when indicated to be significantly different from thet recommended by the prment exeuraion factor*. Iwtomrnm NMm Catbo* wtratMarlde rDiffclOThMili AfflMt SMMViiMnir Bariteaaiw SmwMMW *V Ippm IDppei SO ppm 1UU0 ppm Cl ppm CSppm C1U0 ppm FUlf 3 : \x us -- -- -- Mm Cm 9enthd turn* Sppm 20 ppm Kppm lAVtppm 1 ppm Sppm Ml) ppm For ail sebtlaacm: TLV >0 -- 1 (ppmeram'M'I.ExranmaFanar S TLV > 1 -- 10 (ppm arag/M*). Cwima Fanar >2 TLV > 10--100 (ppmar*f/M').Eannma Fartar U TLV > 100--1000tppmarmf'M't.kjuuniaaFanar IJS ami* for Assigning Limiting "C Value* By definition la tht Preface, a lined value bearing a "C deaignalion reicra to a 'eeiiiag' value that shoaid aot be exceeded; all vaiae* should fluctuute below the litted value. Tbia, ia affan. makes the "C" deeignation a maximal allowable eoncealration (MAC). Ia general the beam for aaaigniag or aei aaaigsing a "C value DUP 0960086 CONFIOENJIflL DU 040396 I THitMXClD UMtT VALUCS ?5! 'J -a Of Mt.304NI CONTAMINANT* "lwt 1'9* */'<* * *?73 rt*( '<n whether txcuniooa of concentration abee a prolimit (or periooa up to 15 rainutaa may muit ia to) intolerable irritation, (b) chronic, or irreaereibie tiaeoe ckaape, or (el narco*ia of audjewM daproa to ineraaae accident proataaaa. Impair Mif-raaeu*. or autarinily ra tinet work efficiency. APPCNora a law Nuiaonco Perbcalatoa (q) Aiuadua (AliOi) Calcium earbooata CeOaiaaa (paper Sbar) Portland caaaal Caraadum (AlxOi) Eaaery Ciaaa, fibrosa'1 or daat Giyearisauat Graphite (apathetic) Cypaaaa VepetaWe el mbto (eaatpe eaitor. eaabaw aat. or aimiiar irriuat oiia) Kaolla t imeatnnc Mapieshc Marbia Ptaiaarytkritol Ptaamr of Park Roup* Silicone carbide Surek Samoa Tie oxide Tilaaiam dioxide (q) When toaia imparfcfaa an am precast, qsaiti < IX (r) < 5--7jxm ia Hammer APPfNOOC P Soma Ihwpio Acphyalaaln -- "laocf Oeeaa and Vaparaia) Aemylnte Arfoa Balaaa Etbaaa Ethylni Halim Hydropem Matbaaa Naos Nknpa Nitroma azide Propaaa (a) Ac deflsad is 4j6. DUP 0960087 DU 040397