• 職業(yè)病危害因素識別

通過職業(yè)衛(wèi)生調(diào)查、工程分析、資料分析和檢測檢驗等方法，對用人單位生產(chǎn)工藝過程、 生產(chǎn)環(huán)境、勞動過程和特殊環(huán)境中可能存在的職業(yè)病危害因素的種類、來源、分布及其影響人員進行全面、客觀及準確的識別，職業(yè)病危害因素識別范圍應包括：

a) 國家已發(fā)布職業(yè)接觸限值的；

b) 列入《職業(yè)病危害因素分類目錄》的；

c) 國家已發(fā)布職業(yè)衛(wèi)生檢測方法的；

d) 其他對勞動者健康有影響的。

存在以下情況時，應通過檢測檢驗識別工作場所中存在的職業(yè)病危害因素：

a) 對于成分不明的有機化學品，開展揮發(fā)性有機組分定性分析，以識別存在的化學物質(zhì)；

b) 對于游離二氧化硅含量不明的粉塵，開展游離二氧化硅含量測定，以確定粉塵性質(zhì)。

• 重點評價的職業(yè)病危害因素篩選

根據(jù)前期現(xiàn)場調(diào)查和收集的資料，篩選重點評價的職業(yè)病危害因素，依據(jù)如下：

a) 國家已制定職業(yè)接觸限值和職業(yè)衛(wèi)生檢測方法的；

b) 國家未制定職業(yè)接觸限值和（或）職業(yè)衛(wèi)生檢測方法的，應結(jié)合勞動者接觸時間、接觸機會、 接觸人數(shù)和化學物質(zhì)毒性、使用量及揮發(fā)性等綜合分析。

  符合篩選依據(jù)中任一情形的，即為重點評價的職業(yè)病危害因素。

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