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Isocyanates |
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and Analysis |
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Chemical Sampling Information. OSHA. The
Chemical Sampling Information file presents,
in concise form, data on a large number of
chemical substances that may be encountered
in industrial hygiene investigations.
Includes information relating to chemical sampling for isocyanates
and contains references to the following isocyanate compounds:
- Aromatic Isocyanate Surface Contamination Sampling and Evaluation Techniques.
OSHA,
(1997). Describes sampling procedures for using direct reading (colorimetric) wipes and collecting wipe samples for laboratory analysis.
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Diisocyantes (HDI, 2,4-TDI, 2,6-TDI).
OSHA Method 42, (1989, March).
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Methylene bisphenyl
isocyanate (MDI). OSHA Method 47, (1989, March).
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NIOSH Manual of Analytical Methods
(NMAM). US Department of Health and Human
Services (DHHS), National Institute for
Occupational Safety and Health (NIOSH)
Publication No. 94-113, (1994, August).
Provides individual analytical
methods, listed by chemical name or method number.
- Isocyanates. Method No. 5522, 36 KB
PDF, 6 pages.
- U.K. Health and Safety Executive Method 25/2
- The following are analysis methods for specific isocyanate compounds. It is often desirable to determine the amount of free isocyanate, not just the specific compound. Several methods have been suggested to accomplish this.
However, all have had serious problems when applied to field sampling.
- Streicher, RP, et al. Investigation of the
ability of MDHS method 25 to
determine urethane-bound isocyanate
groups. American Industrial Hygiene
Association Journal. 1995;56(5):437-42.
- Key-Schwartz, RJ. Analytical problems
encountered with NIOSH method 5521 for
total isocyanates. American Industrial Hygiene Association Journal.
1995;56(5):474-9.
- Maitre, A., et al.
Biological monitoring of occupational
exposure to toluene diisocyanate. Int. Arch. Occup.
Environ. Health. 1993;65:97-100.
- Documentation of the threshold limit
values and biological exposure indices.
American Conference for Government Industrial Hygienists
(ACGIH). 1991;6:1581-9.
- For additional
information, see OSHA's
Sampling and Analysis Safety and Health
Topics Page.
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