ISO 6923:2023

Paints and varnishes — Determination of monomeric diisocyanate content in coating materials and similar products using high performance liquid chromatography with ultraviolet detection (HPLC-UV)

Datum objavljivanja: 5. 9. 2023.

Опште информације

Trenutna faza: 60.60 Effective date: 5. 9. 2023.

Inicijator: ISO

Pripada: ISO/TC 35

Vrsta: Međunarodni standard

ICS: 87.040

Jezik: engleski francuski

Kupovina

Status: Objavljen

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Apstrakt

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.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 6923:2023
60.60 Standard objavljen
5. 9. 2023.

Nacionalna preuzimanja

SRPS EN ISO 6923:2024

ISS

Boje i lakovi – Određivanje sadržaja monomernog diizocijanata u materijalu za prevlaku i sličnim proizvodima korišćenjem tečne hromatografije visoke performanse sa ultraljubičastom detekcijom (HPLC-UV)

60.60 Standard objavljen

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