Document NGpneem3B0J261wpKrk7JvKbV

Cyprus Industrial Minerals Company 555 South Flower Street TWX 910) 321-5753 Los Angeles, California 90071 Telephone 213) 489-3700 January 8, 1981 Talc and the OSHA Asbestos Standard 29CFR 1910.1001 Cyprus Industrial Minerals Company's Montana talc based products are free of asbestos as defined by the OSHA Safety and Health Standards (CFR 1910.1001 [a]). Although our California talc based products generally show no asbestos minrals at the lower limits of detecta bility by x-ray diffraction, they may occasionally show trace amounts (0.1% - 0.3%) of tremolite. Our program of continuing checks of airborne dust at our California Cyprus manufacturing plants indicate airborne fiber levels below the allowable TLV. In addition, these fiber checks are monitered by electron microscopy, resulting in a more ac curate and sensitive test. Thus, we feel compliance is assured under the standard outlined in 1910.1001. We attached a list of Montana and California based talcs for your reference and suggest that this letter be kept with previous correspondence on this subject. As new regulatory data is published we will provide further clarification. Sincerely CRM :cm attach C. R. Moebus Vice President Technical Services PLAINTIFFS EXHIBIT CAM-280 CYPRUS CAMC-Abeyta-001806 MONTANA BASE PRODUCTS ALTALO 200 ALTALO 300 ALTALO 325 ALTALO 400 ALTALO 500 BEAVERWHITE 200 BEAVERWHITE 325 CYPRUFIL 200 CYPRUFIL 325 GLACIER 200 MONOBLEND OLYMPIC SIERRALITE II STEAWHITE 200 SUPREME USP TALO YELLOWSTONE MISTRON CYPRUBOND MISTRON CYPRUSPERSE MISTRON EG MISTRON FROST MISTRON FROST COMPACTED MISTRON MONOMIX MISTRON RCS MISTRON RCS #2 MISTRON SPRAY MISTRON STAR MISTRON SUPER FROST MISTRON ULTRAMIX MISTRON VAPOR MISTRON VAPOR COMPACTED MISTRON VAPOR COMPACTED R MISTRON ZSC CALIFORNIA BASE PRODUCTS C-300 C-400 C-500 FURNACE CREEK FURNACE CREEK COARSE SIERRALITE SIERRA WHITE 200 SIERRA WHITE 325 SIERRA WHITE IR MISTRON 139 MISTRON F-128 MISTRON HGO-75 MISTRON MSC ;jMISTRON T-076 f OTHER CRUDE SOURCES SUPRA SUPRA EF SUPRAFINO OREAN OREAN EF OREFINO KORMON CYPRUS CAMC-Abeyta-001807