Norm

NEN-ISO 17734-2:2013 en

Bepaling van organostikstofverbindingen in lucht met behulp van vloeistofchromatografie en massaspectrometrie - Deel 2: Aminen- en amino-isocyanaten met behulp van dibutylamine en ethylchloroform derivaten

124,99

Over deze norm

Status Definitief
Aantal pagina's 28
Commissie Werkplek- en buitenluchtmetingen
Gepubliceerd op 01-12-2013
Taal Engels
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 (ISO 17734-1). The method can be used for simultaneous determinations of amines, 4,4'-methylenediphenyldiamine (4,4'-MDA), 2,4- and 2,6-toluenediamine (2,4-, 2,6-TDA) and 1,6-hexamethylenediamine (1,6-HDA), and compounds containing both isocyanate and amine groups, 4,4'-methylenediphenyl aminoisocyanate (4,4'-MAI), 2,4-, 4,2- and 2,6-toluene aminoisocyanate (2,4, 4,2, 2,6-TAI), 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.

Details

ICS-code 13.040.30
Nederlandse titel Bepaling van organostikstofverbindingen in lucht met behulp van vloeistofchromatografie en massaspectrometrie - Deel 2: Aminen- en amino-isocyanaten met behulp van dibutylamine en ethylchloroform derivaten
Engelse titel Determination of organonitrogen compounds in air using liquid chromatography and mass spectrometry - Part 2: Amines and aminoisocyanates using dibutylamine and ethyl chloroformate derivatives

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