American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 1 mg/m3 TWA - Thoracic fraction (see Appendix C, Paragraph C); Appendix A2 - Suspected Human Carcinogen - Classification refers to Sulfuric acid contained in strong inorganic acid mists.
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 1 mg/m3 TWA
Note: One of the 20 occupational fatalities reported to poison control centers in 2001 was due to Sulfuric acid inhalation.
Date Last Revised: 07/18/2003
Literature Basis:
International Chemical Safety Cards (WHO/IPCS/ILO): Sulfuric acid.
(fatality)
Litovitz, T.L., et al.: 2001 Annual Report of the American Association of Poison Control Centers Toxic Exposure Surveillance System. Am. J. Emerg. Med.20(5): 391-452, 2002.
sampling media: Mixed Cellulose Ester Filter (MCEF) 0.8 microns
maximum volume: 480 Liters maximum flow rate: 2.0 L/min
current analytical method: Ion Chromatography; IC
method reference: OSHA Manual of Analytical Methods (OSHA ID-113)
method classification: Partially Validated
note: Submit as a separate sample. Within 1 hour after sampling, transfer the filter to a clean screw cap vial. Phosphoric and Sulfuric acid may be submitted on the same filter; otherwise, submit as a separate filter.
sampling media: Treated Silica Gel Tube (Supelco ORBO-53; SKC, 226-10-03 or equivalent)
maximum volume: 96 Liters maximum flow rate: 0.2 L/min
current analytical method: Ion Chromatography; IC
method reference: OSHA Manual of Analytical Methods (OSHA ID-165SG)
method classification: Partially Validated
note: Phosphoric, Nitric, and Sulfuric acids may be submitted on the same tube. Make sure that glass fiber filter plug is firmly in contact with silica gel before sampling and before sealing tube for shipment.
device: Detector Tube
manufacturer: Gastec
model/type: 35
sampling information: 10 strokes
upper measurement limit: 5 mg/m3 detection limit: 0.2 mg/m3 overall uncertainty: 16% for 0.5 to 2 mg/m3, 8% for 3 to 5 mg/m3 method reference: on-site air secondary (manufacturer)
Wipe sampling: Whatman smear tab; Solvent: Deionized water
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