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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: 2587

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: ZC2550000

NIOSH Pocket Guide to Chemical Hazards, Welding fumes: chemical description, physical properties, potentially hazardous incompatibilities, and more

Exposure Limits

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): Appendix A - NIOSH Potential Occupational Carcinogens

Health Factors

Carcinogenic Classification:
International Agency for Research on Cancer (IARC): Group 2B, possibly carcinogenic to human [6 MB PDF, 79 pages]
Literature Basis:
  • No Authors: Welding [6 MB PDF, 79 pages]. IARC Monogr. Eval. Carcinog. Risks Hum. 49: 447-, 1990.
Monitoring Methods used by OSHA

Laboratory Sampling/Analytical Method:
  • sampling media: Mixed Cellulose Ester Filter (MCEF) 0.8 microns
    maximum volume: 960 Liters
    minimum volume: 480 Liters
    maximum flow rate: 2.0 L/min (TWA)
    current analytical method: Inductively Coupled Argon Plasma; ICP/DCP-AES
    method reference: OSHA Analytical Method (OSHA ID-125G)
    method classification: Fully Validated
    note: Multi-element analysis for 13 metals is possible on a single filter. The metals are: Cobalt, Beryllium, Molybdenum, Cadmium Chromium, Copper, Iron, Manganese, Nickel, Lead, Antimony Vanadium and Zinc. Metal Oxide compounds are reported for the convenience of the industrial hygienist and are based on the elemental concentration multiplied by the appropriate gravimetric conversion factor. If the total weight of sample needs to be determined, evaluate gravimetrically using the method for Particulates not otherwise regulated (Total Dust). It is all right to submit Low Ash Polyvinyl Chloride (LAPVC) filters for ICP analysis after doing the Gravimetric analysis.
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Page last updated: 02/13/2008

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