Standard Swedish standard · SS-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) (ISO 6923:2023, IDT)

Status: Valid

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Standard Swedish standard · SS-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) (ISO 6923:2023, IDT)
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Scope
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.

Subjects

Paints and varnishes (87.040)


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Standard Swedish standard · SS-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) (ISO 6923:2023, IDT)
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Price: 875 SEK
standard ikon pdf

PDF

Price: 875 SEK
standard ikon

Paper

Price: 1 400 SEK
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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-82088370

Edition: 1

Approved: 6/24/2024

No of pages: 24