Failure report no. 5344, 2,4-toluenediisocyanate (TDI).

Details

• Corporate Authors:
  National Institute for Occupational Safety and Health
• Description:
  Test results using the NIOSH analytical method S344 for 2,4- toluenediisocyanate (584849) are evaluated. The procedure involved collection in a midget impinger and analysis by liquid chromatography with ultraviolet detection. Drawbacks of the method include the use of toluene as a collection solvent, oxidation of the nitro reagent after sample collection, and deterioration of the chromatographic column due to the excess nitro reagent. The author recommends that development and validation of this method be continued. Additional tests should be directed toward eliminating the problems associated with the nitro reagent. [Description provided by NIOSH]
• Subjects:
  Isocyanates Nitrogen Compounds Occupational Health Radiation Safety Ultraviolet Rays
• Keywords:
  Analytical-methods; Isocyanates; Sampling-methods; Ultraviolet-radiation; Nitro-compounds
• Document Type:
  Text
• Genre:
  Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:00108939
• Citation:
  NIOSH 1977 Aug; :S344-1-S344-4
• CAS Registry Number:
  Toluene 2,4-diisocyanate (CAS RN 584-84-9)
• Federal Fiscal Year:
  1977
• Peer Reviewed:
  False
• Source Full Name:
  NIOSH, Public Health Service, U.S. Department of H.E.W.
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/241244/cdc_241244_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]