New NIOSH methods for sampling and analysis of airborne inorganic acids

Details

• Personal Author:
  Ashley, Kevin E. ; Breuer D
• Description:
  Acid gases/vapors and aerosols are highly corrosive and can irritate the eyes and mucous membranes of the nose, pharynx and respiratory tract, even at low airborne concentrations. Hydrofluoric acid (HF), hydrochloric acid (HCl), nitric acid (HNO3), hydrobromic acid (HBr), sulfuric acid (H2SO4) and phosphoric acid (H3PO4) are used widely in industrial processes such as ore extraction, metal processing, pickling, electroplating and myriad other chemical processes. It is common for several of these acids to occur simultaneously in the air of occupational settings. Applicable occupational exposure limits (OELs) for these substances in air generally range between 0.1-10 mg/m3 for the various acids. The physical states of the different acids in workplace atmospheres may vary from liquid aerosols (mists) for nonvolatile acids like H2SO4 to gases/vapors for volatile acids such as HCl or HNO3. Procedures for sampling and analyzing inorganic acids in workplace air must take into account the physical state(s) of the target analyte(s). Hence new NIOSH methods for sampling and analysis of inorganic acids in workplace atmospheres, methods 7906, 7907 and 7908, have been promulgated to account for the collection of inorganic acid gases/vapors and/or aerosols. The technical contents of these new NIOSH methods are based on related recently-developed International Organization for Standardization (ISO) consensus standards. [Description provided by NIOSH]
• Subjects:
  Acids Chemistry Chemistry, Analytic Environmental Monitoring Hazardous Substances Manufacturing And Industrial Facilities Occupational Exposure Occupational Health Safety Solvents
• Keywords:
  Acid-gases Acid-mists Air-sampling-techniques Analysis Analytical-chemistry Analytical-instruments Analytical-Method Analytical-methods Analytical-processes Author Keywords: Workplace Hazards Biological-effects Consensus Standard Exposure-limits Health-hazards Industrial-processes Inorganic-acids Inorganic Acids Occupational-exposure Personal Sampling Sampling Sampling-methods Standards Vapors Volatiles

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• ISSN:
  1545-9624
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  11
• Issue:
  11
• NIOSHTIC Number:
  nn:20044946
• Citation:
  J Occup Environ Hyg 2014 Nov; 11(11):D208-D211
• Contact Point Address:
  Dietmar Breuer, Institut für Arbeitsschutz der Deutschen Gesetzlichen Unfallversicherung (IFA - Institute for Occupational Safety and Health of the German Social Accident Insurances), Alte Heerstraße 111, 53757 Sankt Augustin, Germany
• Email:
  dietmar.breuer@dguv.de
• CAS Registry Number:
  Hydrochloric acid (CAS RN 7647-01-0) ; Hydrofluoric acid (CAS RN 7664-39-3) ; Hydrogen bromide (CAS RN 10035-10-6) ; Nitric acid (CAS RN 7697-37-2) ; Phosphoric acid (CAS RN 7664-38-2) ; Sulfuric acid (CAS RN 7664-93-9)
• Federal Fiscal Year:
  2015
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Occupational and Environmental Hygiene
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f1a7de75a365d0da2524aed5e2553585f75e9ce0fc6e1a206167d5c07d51b4e8f7cbb6c38cd590aab6c2e2eec4d25221d7dcb6d2e8f8689c463eba01ed1ebc51
• Download URL:
  https://stacks.cdc.gov/view/cdc/200526/cdc_200526_DS1.pdf
• File Type:
  [PDF - 122.96 KB ]