H. B. Rhodes to R. E. Byrne, Jr. and Others on Health Standards for Amorphous and Crystalline Silica, with Attached OSHA and NIOSH Materials (1977)

Internal Union Carbide memo from H. B. Rhodes transmitting a report on the status of OSHA health standards for amorphous and crystalline silica, plus a NIOSH recommendation summary for crystalline silica. The memo says the NIOSH exposure level is very low and similar to the asbestos standard's monitoring and medical examination requirements, and that pyrogenic silica is amorphous with no detectable crystalline material. Attached are an Asbestos Information Association memo, Federal Register notices, an OSHA Table Z-3 and asbestos standard excerpt, and a NIOSH summary.

What the document holds

• Page 1: Union Carbide internal memo, H. B. Rhodes to distribution, Health Standards for Amorphous and Crystalline Silica (Feb. 16, 1977)
• Page 2: Asbestos Information Association memorandum for the record, Status of Silica Standards, signed B. J. Pigg (Feb. 7, 1977)
• Page 3: OSHA advance notice of proposed rulemaking for amorphous silica, 41 FR 56336 (Dec. 28, 1976)
• Pages 4-7: OSHA advance notice of proposed rulemaking for crystalline silica, Federal Register Dec. 27, 1974, with lists of OSHA and NIOSH offices (page 7 also has an unrelated HEW Right to Read proposed rule)
• Page 8: Employment Safety and Health Guide pages: Table Z-3 mineral dusts and 29 CFR 1910.1001 asbestos standard excerpt
• Page 9: Summary of NIOSH recommended standard for occupational exposure to crystalline silica

People and organizations

From H. B. Rhodes ("Calidria" Asbestos (originating dept.), Metals Division) to R. E. Byrne, Jr.; G. L. Dickson; E. J. Kleber; J. L. Myers; T. P. Norris; W. C. Thurber; J. E. Walsh.

• Harrison B. Rhodes (author)
• Robert E. Byrne, Jr. (recipient)
• Gordon L. Dickson (recipient)
• Edward J. Kleber (recipient)
• John L. Myers (recipient)
• Tom P. Norris (recipient)
• William C. Thurber (recipient)
• Jack E. Walsh (recipient)
• Metals Division (its organization)
• Union Carbide Corporation (its organization)
• Asbestos Information Association/North America (named)
• Calidria Asbestos (named)
• NIOSH (named)
• OSHA (named)
• U.S. Department of HEW (named)
• U.S. Department of Labor (named)

Related pages

Pages on our site about what this document covers: NIOSH · New York Asbestos Exposure Sites: Worksites, Industries, and Trust Coverage · OSHA.

About this copy

This is document UC-1610 of the Union Carbide documents, documents produced and used as evidence in asbestos lawsuits against Union Carbide, 9 pages.