Provides testing status information on tetrachloroethylene, a synonymous chemical to perchloroethylene.
提供测试的状态信息，对四氯乙烯，化学品的代名词，以氯乙烯。
Criteria for a Recommended Standard: Occupational Exposure to Tetrachloroethylene (Perchloroethylene).
准则一建议的标准：职业暴露四氯乙烯(氯乙烯)。
Criteria for a Recommended Standard: Occupational Exposure to Tetrachloroethylene (Perchloroethylene).
准则一建议的标准：职业暴露四氯乙烯(氯乙烯)。
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