IS 16139 : Part 2 : 2025/ISO 17734-2 : 2013 Workplace Air-Determination of Organonitrogen Compounds in Air Using Liquid Chromatography and Mass Spectrometry - Part 2 Amines and Aminoisocyanates Using Dibutylamine and Ethyl Chloroformate Derivatives
NATIONAL FOREWORD
This Indian Standard (Part 2) (First Revision) which is identical to 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' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Air Quality Sectional Committee and approval of the Chemical Division Council.
In many applications, when considering isocyanates as a workplace contaminant, there is also a need to investigate the presence of aminoisocyanates and amines. During thermal decomposition of polyurethane (PUR), not only isocyanates, but also amines and aminoisocyanates, are formed.
This standard was first published in 2014 as an identical adoption of ISO 17734-2 : 2006 under dual numbering. The first revision of this standard has been undertaken in order to adopt the latest version with ISO 17734-2 : 2013.
This part given 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 reagent.
This Indian standard has been published in two part. The other parts in this series are:
Part 1 Isocyanates using dibutylamine derivatives
The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions and terminologies are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:
a) Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and
b) Comma (,) has been used as a decimal marker in the International Standard, while in Indian Standards, the currentpractice is to use a point (.) as the decimal marker.