但外操工在聚丙烯粉尘取样口取样瞬间工人操作位空气中丙烯最高浓度超过有关标准的职业接触限值11倍。
But the maximum concentration of propylene during the sampling moment at the polypropylene dust sampling window exceeded 11 times relative standards.
本文就所需要采取的措施．职业接触限值陈述了目前国际上的趋势，最后介绍了ILO／WHO全球消除矽肺的国际规划。
The present paper presents the action needed, occupational exposure limits for control silicosis, and finally introduces the ILO/WHO International Program on Global Elimination of Silicosis.
不同国家的木粉尘的职业接触极限值（或极限值）却不尽相同。
The occupational exposure limits (OELs) of wood dust in different countries are however not the same.
目的研究职业性苯暴露反-反式粘糠酸（t，t-MA）生物接触限值。
Objective To study the biological limit of urine trans, trans-muconic acid(t, t-MA)for occupational exposure to benzene.
研究职业接触苯乙烯的生物限值。
To study the biological limit values for occupational exposure to styrene.
研究职业接触苯乙烯的生物限值。
To study the biological limit values for occupational exposure to styrene.
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