Document omqa4MNKDX9k42kNLgEn4yyb7

(conoco) Interoffice Communication to Plant Safety Directors From Thomas G. Grumbles Date October 23, 1980 Subject PRIMARY SUBSTANCE CODES Enclosed please find an updated Primary Substance Code list for the computer data storage system. Please replace your old list with this one. -- Thomas G. Grumbles ajo Enclosure 000002570 OCR PRIMARY SUBSTANCE CODES AC Alcohol AD Alumina AM Ammonia AT Antimony Trioxide AS Asbestos BZ Benzene BP Biphenyl & Biphenyl Oxide BA Butyl Alcohol C0 Carbon Monoxide CT Carbon Tet CL Chlorine CF Chloroform CA Cresylic Acid, total DI Dioxane ME Dimethyl Ether 00 Diphenyl Oxide EA Ethyl Alcohol EC Ethyl Chloride ED Ethylene Dichloride E0 Ethylene Oxide HA Hexyl Alcohol HL Hydrochloric Acid HS Hydrogen Sulfide PB Lead MA Methyl Alcohol MC Methyl Chloride OC Ortho Cresol PH Phenol PA Polynuclear Aromatics (PNA) PD PVC Dust SD Sulfur Dioxide SA Sulfuric Acid TR Trans TP Trimethyl phenol TE Tetramethyl phenol TL Toluene TD Total Dust VC Vinyl Chloride VN Vinylidene Chloride WF Welding Fume XL Xylene 26 2,6-Xylenol 24 2,4-2,6-Xylenol CCR 000002571