Industry submitted a request for a provisional acceptance of these TLVs based upon the small number of samples used to derive the conversion factors.
All values refer to 'total' nickel unless otherwise noted.
This TLV applies to nickel metal and alloys, nickel sulphide, sulphidic ores, oxidic nickel, and nickel carbonate in inhalable dust, as well as any nickel compound in the form of inhalable droplets. 3 Metallic nickel only. Occupational Exposure Standard. American Conference of Governmental Industrial Hygienists. Based on the inhalable particulate fraction.