NIOSH Manual of Analytical Methods-Part I NIOSH Monitoring Methods.

Details

• Corporate Authors:
  National Institute for Occupational Safety and Health
• Description:
  The NIOSH analytical method for determining toluene-diisocyanate (26471625) (TDI) in air is described. TDI is hydrolyzed to the corresponding toluenediamine derivative which is then diazotized by a sodium-nitrite and sodium-bromide solution. The diazo compound is reacted with N-(1-naphthyl)-ethylenediamine to form a color complex that is analyzed colormetrically at 550 nanometers. The analytical range of the method is 0.007 to 0.14 parts per million. Free aromatic amines will interfere with the analysis. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Air Pollution, Indoor Colorimetry Environmental Monitoring Isocyanates Occupational Health Safety
• Keywords:
  Air-contamination; Air-sampling; Isocyanates; Analytical-methods; Diazo-compounds; Colorimetry
• Series:
  NIOSH Numbered Publications
• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Genre:
  Handbooks
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  141-142
• Volume:
  1
• NIOSHTIC Number:
  nn:00108937
• Citation:
  Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, 1977 Apr; 1:141-142
• CAS Registry Number:
  Toluene diisocyanate (CAS RN 26471-62-5)
• Federal Fiscal Year:
  1977
• Peer Reviewed:
  False
• Source Full Name:
  National Institute for Occupational Safety and Health
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/236927/cdc_236927_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]