Monitoring to assess the exposure of dangerous chemicals employed from the working environment. Using biological specimen of urine and blood shed, the substances employed, the chemical consumption and analysis on the body in the form of chemical substances, or chemical processing. (Reference from the industry Ministry issue 4409 (2555 (2012)) issued by the Thai Industrial Standards Act 2511 (1968) story set industrial standards. The operating concept of health monitoring based on risk factors and physical chemistry aspects from a career in entrepreneurship)
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