Standard

ISO 6923:2023

Sept 2023 Historical draft

Note: This standard has a new edition: ISO 6923:2023

Corrigenda and amendments are bought separately.

Language English

Services Read Online (No printing ) kr 1 362,00 Printed and bound Delivery time: 5-10 days kr 1 702,00

There are no extended editions available for this standard

There are no available corrigendum or amendments for this standard. Any future corrigendum and amendments will be added automatically for subscribers.

Abstract

This document specifies a method for the quantitative determination of monomeric diisocyanate content in coating materials, adhesives and other liquid or pasty materials. This method is suitable for the quantification of the following monomeric diisocyanates: methylene diphenyl diisocyanate (MDI, 2,4’-MDI and 4,4’-MDI), toluene diisocyanate (TDI, 2,6-TDI, 2,4-TDI), (cis/trans) isophorone diisocyanate (IPDI) and hexamethylene diisocyanate (HDI,1,6-HDI) in various matrices for concentrations ranging from 0,01 % to 2,0 % mass fraction. For higher concentrations, a suitable dilution before the derivatization with p-nitrobenzyl-N-propylamine (PNBPA) is performed. The measurements are carried out using ultra high performance liquid chromatography (UHPLC) with a multiple wavelength detector.

Document information

Standard from ISO
Published: 5 September 2023
Expires: 10 January 2023
Edition: 1
Version: 1
Document type: IS
ISBN:

ICS 87.040
ISO TC ISO/TC 35

ISO 6923:2023

Access to standards for the entire organization

Benefits of our business solution:

Contact us today for a non-binding offer

ISO 6923:2023

ISO 6923:2023

ISO 6923:2023

Abstract

Document information

Access to standards for the entire organization

Benefits of our business solution:

Contact us today for a non-binding offer

Extended editions Extended editions (0)

Version history Related corrigendum and amendments (0)

Version history History (3)

ISO 6923:2023

ISO 6923:2023

ISO 6923:2023

Abstract

Document information