3/13/2024 0 Comments Chemistry how to calculate ppm![]() An additional group of PELs were developed for cancer-causing substances. Most PELs are for air contaminants that may be inhaled by workers or absorbed through the skin. The PELs provide numeric standards that determine how long a worker may be exposed in the workplace to a threshold amount of an airborne contaminant without adverse effects on health. OSHA has developed 470 PELs (permissible exposure limits) for various forms of approximately 300 chemical substances. Here is a review of the formulas used to calculate PELs. To protect workers from harmful exposures to air contaminants, you have to be able to calculate exposure limits accurately.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |