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1996 Asbestos Minerals Yearbook

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1996 Asbestos Minerals Yearbook
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Asbestos is a generic name given to six fibrous minerals that have been used in commercial products. The six types of asbestos are chrysotile, crocidolite, amosite, anthophyllite asbestos, tremolite asbestos, and actinolite asbestos. Several properties that make asbestos so versatile and cost effective are high tensile strength, chemical and thermal stability, high flexibility, low electrical conductivity, and large surface area. The leading domestic markets are roofing products, gaskets, and friction products. Nearly all of the asbestos produced worldwide is chrysotile.

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ASBESTOS

(Data in thousand metric tons, unless noted) Domestic Production and Use: One firm in California accounted for 100% of domestic production. Asbestos was consumed in roofing products, 47%; friction products, 35%; gaskets 10%; and other, 8%. Salient Statistics—United States: Production (sales), mine Imports for consumption Exports Shipments from Government stockpile excesses Consumption, apparent Price: average value, dollars per ton, f.o.b. Stocks, producer, yearend Employment, mine and mill Net import reliance1 as a percent of apparent consumption Recycling: Insignificant. Import Sources (1991-94): Canada, 99%; and other, 1%. Tariff: Asbestos Item Number 2524.00.0000 Most favored nation (MFN) 12/31/95 Free Non-MFN2 12/31/95 Free. 1991 20 35 26 — 35 383 W 70 26 1992 16 32 25 — 33 394 W 70 21 1993 14 31 28 — 32 435 W 70 9 1994 10 26 18 — 27 506 W 30 30 1995e 9 24 13 — 24 W W 30 46



Depletion Allowance: 22% (Domestic), 10% (Foreign). Government Stockpile: Stockpile Status—9-30-95 (Metric tons) Material Amosite Chrysotile Crocidolite Uncommitted inventory 30,849 9,768 33 Committed inventory — — — Authorized for disposal 30,849 9,768 33 Disposals Jan.-Sept. 95 — — —



Prepared by Robert L. Virta, (703) 648-7726.



23



ASBESTOS

Events, Trends, and Issues: Domestic sales of asbestos declined 10% from that of 1994. Imports and exports decreased 8% and 28% respectively, according to the Bureau of the Census. It is likely that a large percentage of the exports were either reexports, asbestos-containing products, or nonasbestos products. Exports of asbestos fiber are estimated to be less than 9,000 tons. Apparent consumption declined 11%. All of the asbestos consumed in the United States was chrysotile. Canada remained the largest supplier of asbestos for domestic consumption. The U.S. Environmental Protection Agency proposed to remove asbestos processing (asbestos milling, manufacturing and fabrication) from the 1990 amendments to the Clean Air Act. The action was taken because measured emissions at several facilities were lower than previously estimated. The U.S. Occupational Safety and Health Administration amended its asbestos standard for general industry, construction, and the shipyard industry. The changes included less stringent requirements for removal of roof cements, coating, mastics, and flashings; clarification of the definition of friable materials; and modified training and health screening requirements. World Mine Production, Reserves, and Reserve Base: Mine production 1994 1995e 10 9 175 170 518 510 240 240 300 300 800 800 95 95 150 145 122 120 2,410 2,390 Reserves3 Moderate Moderate Large Large Large Large Moderate Moderate Large Large Reserve base3 Large Moderate Large Large Large Large Moderate Moderate Large Large



United States Brazil Canada China Kazakstan Russia South Africa Zimbabwe Other countries World total (may be rounded)



World Resources: The world has 200 million tons of identified resources and an additional 45 million tons classified as hypothetical resources. The U.S. resources are large, but are composed mostly of short fibers. Substitutes: Numerous materials substitute for asbestos in products. The substitutes include calcium silicate; carbon fiber; cellulose fiber; ceramic fiber; glass fiber; steel fiber; wollastonite; and several organic fibers, such as aramid, polyethylene, polypropylene, and polytetrafluoroethylene. Several nonfibrous minerals were considered as possible asbestos substitutes for products in which the reinforcement properties of fibers were not required. No single substitute was as versatile and as cost effective as asbestos.



e 1



Estimated. W Withheld to avoid disclosing company proprietary data. Defined as imports - exports + adjustments for Government and industry stock changes. 2 See Appendix B. 3 See Appendix C for definitions.



Mineral Commodity Summaries, January 1996





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