'S EXHIBIT Order Form factions Quantity Ordered fizz 1__ 1________ 1 ___ Stock No. 022.22-1 022.22-2 022.22*3 Vat.

SUMMARY OF INDUSTRIAL HYGIENE EVALUATIONS DURING CAT CRACKER TURNAROUNDS SUMMARY Because of a concern for personnel exposure to air contaminants, the working atmosphere was monitored at six Manufacturing locations during major catalytic cracker turnarounds in 1978, 1979, and 1980.

The role of poly(vinyl chloride), PVC, in leading to human fife fatalities has been the subject of a number of investiga tions (2,3,4).

Demand for tetraethyl lead was sustained despits the transition to unleaded gasoline ir most new automobile models.

Cir. 1982)................................................................................ 31 Lead Industries Association v.

BULLETIN NO.

BULLETIN NO.

Damage to DNA leading to heritable changes may be important to man not only because of carcinogenicity but because it may cause hereditary disease'**.

Health Policy Advisory Center No. 44 September 1972 HEALTH / PAC BULLETIN Editorial: iD a WORKERS ' SAFETY pational accidents and disease take their toll all over the nation: parathion spray poisons farm workers in California; lung cancer kills Johns Manville - asbestos workers in New Jersey; fires burn oil- workers in Texas refineries; and carbon monoxide fells tunnel workers in New York City.

This program is similar to the already successful lead-based paint program wherein our Association specifications are the standard for the industry.

d/-} ) In re ) PROPOSED REVISED PERMANENT ) OSHA Docket No.

Durinq the last 25 to 30 years, a number of inorganic particles have been implicated as the agent (or agents) responsible for malignant neoplasms in the workplace: chromium ores (Mackle and Greqorius, 1948); (19) heavy metals, especially lead, zinc, and copper (Breslow. 1954)?

k chemists helping chemists in research & industry | aldrich chemical co. * P O Box 355, Milwaukee, Wisconsin 53201 USA Telephone: (414) 273-3850 TWX: (910) 262-3052 Aldrichem Ml Telex. 26 843 Aldrich Mi FAX: (414) 2734979 ATTN: SAFETY DIRECTOR CONOCO IMC REFINERY WAREHOUSE PO BOX 37 OLD SPANISH TRAIL WESTLAKE LA 70669 GS712 DATES 09/28/9T CUST# 923153 PO# 316-LPA-265179 MATERIAL SAFETY DATA SHEET PAGE l -------------------------------------- IDENTIFICATION ------------------------------------------ PRODUCT 25748-6 CAS #:563-46-2 MF: C5H10 NAME: 2-METHYL-1-3UTENF* 99% SYNONYMS ISOPENTFNE (OOT) * 2--METHYL--1 --EUTENE * 2-METHYL--1--BUTENE (DOT) * UN 2371 (DOT) * UN 245?

the society of the plastics industry.

This should not lead to a raise sense of security, how ever, because the same medical conclusions on allowable exposure levels are applicable regardless of the industry where they occur.