دسته: عوامل فیزیکی محیط کار

2021 TLVs and BEIs Based on the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices. This new set includes the 2021 TLVs® and BEIs book, pocket-sized book used worldwide as a guide for evaluation and control of workplace exposures to chemical substances and physical agents, and the…