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BSI BS ISO 17734-2:2013

Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry -- Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives
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BSI BS ISO 17734-2:2013

Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry -- Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives

PUBLISH DATE 2013
PAGES 40
BSI BS ISO 17734-2:2013

This part of ISO 17734 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.

SDO BSI: British Standards Institution
Document Number ISO 17734-2
Publication Date Dec. 31, 2013
Language en - English
Page Count
Revision Level
Supercedes
Committee EH/2/2
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