GBZ

Methods: According to" hazardous substances in workplace air monitoring, sampling rule ( GBZ 159-2004)" in the workplace air concentrations of total dust and free silica content monitoring.

方法：依据《作业场所空气中有害物质监测的采样规范（GBZ159-2004）》对工作场所空气中总粉尘浓度和游离二氧化硅含量进行监测。

Method The probability of causation ( PC) was calculated with corresponding models described in Diagnostic criteria for radiogenic neoplasms ( GBZ 97& 2002) and Report V of Committee on the Biological Effects of Ionizing Radiations ( BEIR V).

方法应用《放射性肿瘤诊断标准》（GBZ97&2002）和美国电离辐射生物效应委员会第5号报告（BEIR V）的方法计算病因概率（PC）。

Power frequency electric field: We totally detected 12 Power frequency electric field-exposed working surface, all of them met the GBZ. 6.

工频电场：共检测12个工人作业岗位工频电场，结果均符合国家职业卫生标准。