Reference number
ISO 17734-2:2013
International Standard
ISO 17734-2:2013
Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry — Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
Edition 2
2013-12
Preview
ISO 17734-2:2013
58007
Indisponible en français
Publiée (Edition 2, 2013)
Cette publication a été révisée et confirmée pour la dernière fois en 2019. Cette édition reste donc d’actualité.

ISO 17734-2:2013

ISO 17734-2:2013
58007
Langue
Format
CHF 151
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Résumé

ISO 17734-2:2013 gives general guidance for the sampling and analysis of airborne amines and aminoisocyanates in workplace air. It is strongly recommended that the determination of amines and aminoisocyanates is made together with the determination of isocyanates in air, using DBA as a reagent (see ISO 17734-1).

The method can be used for simultaneous determinations of amines, such as 4,4'-methylenediphenyldiamine (4,4'-MDA), 2,4- and 2,6-toluenediamine (2,4- and 2,6-TDA), and 1,6-hexamethylenediamine (1,6-HDA), and compounds containing both isocyanate and amine groups, such as 4,4'-methylenediphenyl aminoisocyanate (4,4'-MAI), 2,4-, 4,2-, and 2,6-toluene aminoisocyanate (2,4-, 4,2-, and 2,6-TAI), and 1,6-hexamethylene aminoisocyanate (1,6-HAI). The method is suitable for collecting amines and aminoisocyanates in both the gas and particle phases. The instrumental detection limit for the amines is about 5 nmol/sample and for the aminoisocyanate, it is about 0,3 nmol/sample. For a 15 l air sample, this corresponds to 0,4 ng⋅m?3 for TDA and 0,03 ng⋅m?3 for TAI.

Informations générales

  •  : Publiée
     : 2013-12
    : Clôture de l'examen [90.60]
  •  : 2
  • ISO/TC 146/SC 2
    13.040.30 
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