DEVELOPMENT OF A COLORIMETRIC PERSONAL DOSIMETER FOR NITROGEN DIOXIDE

Abstract

A personal colorimetric dosimeter for nitrogen dioxide has been developed. Detector strips are prepared by dipping Eastman Chromagram Sheet, Type K301R2, in a solution of diphenylamine and oxalic acid in methanol. When dry, the strips can be used to estimate the concentration-time product to which an individual has been exposed. The strips are sensitive to heat and light. Nitrogen dioxide develops a green color while other oxidizers develop a blue color. The strips are not affected by moisture and should have a shelf life greater than one year. Color standards for concentration-time products of 50, 100, and 300 ppm-minutes and a blue standard to indicate an expired strip are described. A plastic holder for the sensitive detector strips is shown.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1968
Accession Number
AD0686423

Entities

People

  • Robert F. Rakowski

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Alcohols
  • Chemical Synthesis
  • Chemistry
  • Detectors
  • Filter Paper
  • Materials Laboratories
  • Materials Science
  • Methanols
  • Moisture
  • Nitrogen
  • Nitrogen Oxides
  • Organic Chemistry
  • Oxalic Acid
  • Redox Indicators
  • Rocket Oxidizers
  • Shelf Life
  • Standards

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Nuclear and Radiation Engineering.
  • Polymer Science and Engineering.