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为了保护粉尘作业工人的健康，作者对自贡中国电焊条厂进行了作业环境粉尘卫生学调查，现将结果报告如下。1．内容和方法1．1作业环境卫生学调查1．1．1作业环境粉尘浓度采用上海宏伟仪表厂生产的FCA3型粉尘采样器进行采样。1．1．2时间加权平均浓度（TWA）采用南京仪器厂生产
In order to protect the health of dust-laden workers, the author carried out a survey on the hygiene of working environment in Zigong China’s welding electrode factory. The results are reported as follows. 1. Content and Methods 1.1 Hygienic Survey of Operational Environment 1.1.1 Operating Environment The dust concentration was sampled by FCA3 dust sampler manufactured by Shanghai Hongwei Instrument Factory. 1.1.2 Time weighted average concentration (TWA) Nanjing Instrument Factory production