Wes认证,是申请留学和移民过程中不可或缺的一部分。然而认证过程确实又繁琐得让懒癌晚期的我头疼,甚至有了 “不认证行不行” 的想法。 要弄明白这个问题,首先得清楚 wes认证是个嘛. Explanations of the notations used for workplace exposure standards (wes) and biological exposure indices (bei). The workplace exposure standards (wes) are intended to be used as guidelines for health risk management.
The numerical value of two or more wes must not be used to directly compare the relative toxicity of diferent substances as the biological potency and toxicologic efects used to derive a wes. Pcbus and people with duties under the health and safety at. The workplace exposure standards (wes) and biological exposure indices (bei) are intended to be used as risk criteria for health risk assessment and risk management, and.