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Fluorides (as F)

General Description

Synonyms: Fluoride; Perfluoride

OSHA IMIS code: 1280

CAS number: 16984-48-8; Varies with compound

Chemical description and physical properties:

  • varies depending on specific compound

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method:
  • mixed cellulose ester filter (MCEF) 0.8 microns
  • maximum volume: 90 L
  • maximum flow rate: 1.5 L/min
  • current analytical method: ion specific electrode; ISE 
  • method reference: OSHA ID-110 (fully validated)
  • sampling analytical error: 0.10
  • note: Submit as a separate sample. If the filter is not overloaded, samples may be collected up to an 8-hour period. Hydrogen fluoride is collected on a Na2C03 impregnated backup pad.
Wipe Sampling Method:
  • Whatman smear tab
  • analytical solvent: deionized water

Exposure Limits and Health Effects (Updated September 6, 2012)

Standard Set By Exposure Limit Health Effect Codes -- Health Effects and Target Organs
OSHA PEL - General Industry
See 29 CFR 1910.1000 Table Z-1
2.5 mg/m3 TWA HE3 -- skeletal fluorosis*
OSHA PEL - Construction Industry
See 29 CFR 1926.55 Appendix A
2.5 mg/m3 TWA HE3 -- skeletal fluorosis*
OSHA PEL - Shipyard Employment
See 29 CFR 1915.1000 Table Z-Shipyards
2.5 mg/m3 TWA HE3 -- skeletal fluorosis*
NIOSH REL 2.5 mg/m3 TWA HE3 -- skeletal fluorosis*
ACGIH TLV® (1979) 2.5 mg/m3 TWA
A4
BEI®
HE3 -- skeletal fluorosis*
HE14 -- irritation of the eyes and respiratory system
CAL/OSHA PELs 2.5 mg/m3 TWA HE3 -- skeletal fluorosis*
HE14 -- irritation of the eyes and respiratory system

Carcinogenic classification:

EPA Inhalation Reference Concentration (RfC): Not established

ATSDR Inhalation Minimal Risk Levels (MRLs): Not established

NIOSH IDLH concentration: 250 mg/m3

Notes on other potential health effects and hazards:

  1. Wheezing and chest tightness, airflow limitation, and decline in lung function have been noted with exposure to fluorides (Abramson et al. 2010).

Partial reference list:

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Fluorides. 2016.
  • Abramson, M.J. et al.: Is Potroom Asthma Due More to Sulphur Dioxide Than Fluoride? An Inception Cohort Study in the Australian Aluminum Industry. Occupational and Environmental Medicine, 67 (10): 679-85. 2010.
  • NIOSH: Criteria for a Recommended Standard -  Occupational Exposure to Inorganic Fluorides. 1975.
  • NIOSH: Pocket Guide to Chemical HazardsSodium Fluoride (as F).

Chemical Sampling Information

By Name

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

By CAS Number

** All Trademarks are the property of their respective owners.

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