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
Reference number
ISO 17734-2:2013
Edición 2
2013-12
International Standard
Vista previa
ISO 17734-2:2013
58007
No disponible en español
Publicado (Edición 2, 2013)
Esta norma se revisó y confirmó por última vez en 2019. Por lo tanto, esta versión es la actual.

ISO 17734-2:2013

ISO 17734-2:2013
58007
Idioma
Formato
CHF 151
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Resumen

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.

Informaciones generales

  •  : Publicado
     : 2013-12
    : Cierre de la revisión [90.60]
  •  : 2
     : 28
  • ISO/TC 146/SC 2
    13.040.30 
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