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Document ID (ISN)68152
CIS number 96-2240
Year 1994
Convention or series no.
Title Report for 1990 of a study committee for testing the toxicity and other aspects of dangerous exotic chemicals used in the IC industry and elsewhere
Original title Heisei 2 nendo - IC sangyō-ra de sayō sareru yūgaisei michi kagaku busshitsu ni taisuru dokusei shiken-ra no chōsa kenkyū i-inkai hōkokusho [in Japanese]
Bibliographic information Japan Industrial Safety and Health Association, Industrial Hygiene Inspection Centre, 5-35-1 Chiba, Minato-ku, Tokyo 108, Japan, no date. 360p. Illus.
Abstract Report of a committee of academic and industrial experts. In 1990, its tasks were to determine the toxicity of phosphine and to conduct a questionnaire survey in the workforce involved in the manufacture of integrated circuits (ICs). Because of its high toxicity, a 4h LC50 (mouse) for phosphine could not be established directly; extrapolation from lethality at lower doses gives an estimate of 26.5-33.4ppm. Of 156 firms that received the questionnaire, 68 (120 sites, 47,000 workers) responded. Enterprises that provide equipment and gases to IC manufacturers were included as well as IC manufacturers themselves. The structures of the workforces by age, sex, type of contract and size of enterprise were determined. The identities and quantities of 50 chemicals used (silanes, compounds of arsenic, boron, rare earth elements, etc.) were tabulated. The existence of data sheets for these products and of systems for disposing of them as waste were also determined. Blood analyses were performed on a sample of the respondents and on controls employed outside the IC industry; all IC employees showed higher red blood cell counts, haemoglobin levels and glutamic-pyruvic transaminase activities, while those over 40 years of age also had elevated cholesterol and neutral fats. Facts on 251 accidents that occurred between Jan. 1985 and Oct. 1990 were collected.
Descriptors (primary) dangerous substances; phosphine; Japan; silanes; boron and compounds; semiconductor devices; phosphorus and compounds; harmful substances; electronics industry; arsenic and compounds
Descriptors (secondary) disposal of harmful waste; report; accident descriptions; information of personnel; animal experiments; lethal concentration 50; questionnaire survey
Document type E - Books, reports, proceedings
Country / State or ProvinceJapan
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Inorganic substances
Electronics industry
Manufacturing of electrical appliances and equipment
Arsenic and compounds