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2. National Institute for Occupational Safety and Health - Wikipedia

   en.wikipedia.org/wiki/National_Institute_for...

   NIOSH was created by the Occupational Safety and Health Act of 1970 [27] and began operating in May 1971. [25] It was originally part of the Health Services and Mental Health Administration, and was transferred into what was then called the Center for Disease Control (CDC) in 1973. [27] NIOSH's initial headquarters were located in Rockville ...

3. Recommended exposure limit - Wikipedia

   en.wikipedia.org/wiki/Recommended_exposure_limit

   All RELs are located in the NIOSH Pocket Guide to Chemical Hazards, along with other key data for 677 chemical or substance groupings. The Pocket Guide is a source of general industrial hygiene information for workers, employers, and occupational health professionals. [1] NIOSH recommendations are also published in a variety of documents ...

4. NIOSH air filtration rating - Wikipedia

   en.wikipedia.org/wiki/NIOSH_air_filtration_rating

   A TB guide, published by NIOSH in 1999, describes 13 combinations of contaminants with unique color markings. [19] The definitive guide from ANSI, who, since the passage of 42 CFR 84 in 1995, has published a 2001 revision of K13.1-1973, named Z88.7-2001, describes 14 combinations of contaminants with unique color markings, based on 13 out of ...

5. Hexamethylene diisocyanate - Wikipedia

   en.wikipedia.org/wiki/Hexamethylene_diisocyanate

   Download as PDF; Printable version; ... NIOSH (US health exposure limits): PEL ... (NIOSH) NIOSH Pocket Guide to Chemical Hazards - Hexamethylene diisocyanate ...

6. Diglycidyl ether - Wikipedia

   en.wikipedia.org/wiki/Diglycidyl_ether

   Download as PDF; Printable version; ... NIOSH (US health exposure limits): PEL (Permissible) ... NIOSH Pocket Guide to Chemical Hazards

7. List of highly toxic gases - Wikipedia

   en.wikipedia.org/wiki/List_of_highly_toxic_gases

   Toxic: a chemical that has a median lethal concentration (LC 50) in air of more than 200 parts per million (ppm) but not more than 2,000 parts per million by volume of gas or vapor, or more than 2 milligrams per liter but not more than 20 milligrams per liter of mist, fume or dust, when administered by continuous inhalation for 1 hour (or less if death occurs within 1 hour) to albino rats ...

8. Dinitro-ortho-cresol - Wikipedia

   en.wikipedia.org/wiki/Dinitro-ortho-cresol

   Download as PDF; Printable version; ... NIOSH (US health exposure limits): PEL (Permissible) ... NIOSH Pocket Guide to Chemical Hazards

9. 2-Aminopyridine - Wikipedia

   en.wikipedia.org/wiki/2-Aminopyridine

   Download as PDF; Printable version; ... NIOSH (US health exposure limits): PEL ... CDC - NIOSH Pocket Guide to Chemical Hazards - 2-Aminopyridine ...