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  • BSI
    BS EN ISO 6923:2024 Paints and varnishes. Determination of monomeric diisocyanate content in coating materials and similar products using high performance liquid chromatography with ultraviolet detection (HPLC-UV)
    Edition: 2024
    $318.72
    / user per year

Description of BS EN ISO 6923:2024 2024

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.

Standard NumberBS EN ISO 6923:2024
TitlePaints and varnishes. Determination of monomeric diisocyanate content in coating materials and similar products using high performance liquid chromatography with ultraviolet detection (HPLC-UV)
StatusDefinitive
Publication Date2024-06-14
Identical National Standard OfEN ISO 6923:2024, ISO 6923:2023, ISO 6923
CorrectsBS ISO 6923:2023
DescriptorsTesting methods, Varnishes, Pigments, Binders (materials), Paints, Coatings
ICS87.040 Paints and varnishes
CommitteeSTI/28
ISBN978 0 539 29909 0
PublisherBSI
Pages20

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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