Kovenibar 28, 1972 Kr.

2--The Occupational Safety and Health Act of 1970 2 Technical information--Provides technical information concerning health or safety conditions at workplaces, such as the pos sible hazards of working with specific sol vents, and when to use protective equip ment 3 Accident prevention--Provides technical as sistance for controlling on-the-job inJunes including the evaluation of special prob lems and recommendations for corrective action. 4 Industrial hygiene--Provides technical as sistance m the areas of engineering and in dustrial hygiene, including the evaluation of special health-related problems m the workplace and recommendations for con trol measures. 5 Medical service--Provides assistance in solving occupational medical and nursing problems in the workplace including the assessment of existing medically related needs and the development of recom mended means for meeting such needs.

T^jMl TfcS *1 April 14, 1978 TAC Construction Materials Ltd.

38--Industrial Toxicology 1190 TABLE 38-E THRESHOLD LIMIT VALUES FOR CHEMICAL SUBSTANCES IN WORKROOM AIR, 1973 (Continued) Substance Perchloromethyl mercaptan Perchloryl fluoride Petroleum Distillates (naphtha) Phenol--Skin Phenothiazine--Skin p-Phenylene diamine--Skin Phenyl ether (vapor) Phenyl ether-Diphenyl mixture (vapor) Phenylethylens, see Styrene Phenyl glyctdyl ether (PQE) Phenylhydrazine--Skin *C Phenylphosphine Phosdrin (Mevtnphos)--Skin Phosgene (carbonyl chloride) Phosphine Phosphoric acid Phosphorus (yellow) Phosphorus pentachlorlde Phosphorus pentasulfide Phosphorus trichloride Phthahc anhydride Picric acid--Skin Pival (2-Pivalyl-l, 3-indandione) Plaster of Paris Platinum (Soluble Salts) as Pt Polychlorobiphenyl9, see Chlorodiphenyls Polytetrafiuoroethylene decompo sition products Propane 0-Propiolactone Propargyl alcohol--Skin n-Propyl acetate Propyl alcohol n-Propyl nitrate Propylene dichloride (1, 2>Dichloropropane) Propylene glycol monomethyl ether Propylene imine--Skin Propylene oxide Propyne, see Methylacetylene ppm* mg/cu m1 01 3 'B2 5 - - 1 1 10 5 0 05 0 01 01 03 - * 05 2 - - F 1 200 200 25 75 100 2 100 08 14 - 19 5 01 7 7 60 22 0 25 01 04 04 1 01 1 1 3 12 01 01 E 000 ' B> - A2 2 840 500 110 350 360 5 240 - Pyrethrum Pyridine Quinone ROX--Skin Rhodium, Metal fumes and dusts (as Rh) Soluble salts Ronnel Rosin Core Solder, pyrolysis products (as formaldehyde) .

jkL y UflOTAXfOH AIJTOm'.OTIVS bivicjom 163 ((.

ETHYL CORPORATION INTER-OFFICE To All Maintenance Supervision Address From Subject W.

i To : W.

PUBLISHED BY THE MARINE DEPARTMENT - EXXON COMPANY.

PUBLISHED BY THE MARINE DEPARTMENT - EXXON COMPANY, U.S.A.

R. 0.

990 0072*3 MEMORANDUM KAWi TO Mr.

Talk givan to Xnaulattor* on Asbaatoa at Rapauno Plant on April 5, 1973. 0 A . ,, f

[ rF-WU RCV. 0-4* CC: R.

D'V'T SAY ITWRITE IT .

CERRO WIRE & CABLE CO. o i v 111 o n of CERRO CORPORATION ^RECEIVED ^EP27 1972 w VfSB.MAI^ETN N NTERNAL MEMORANDUM SHOW NAME.