Färgindustrin

Ämnesområden: Färg och lack
Kommittébeteckning: SIS/TK 433 (Färg och lack)
Källa: CEN
Svarsdatum: den 17 apr 2024
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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.

Ämnesområden: Färg och lack
Kommittébeteckning: SIS/TK 433 (Färg och lack)
Källa: CEN
Svarsdatum: den 20 maj 2024
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The method describes the quantitative determination of the concentration of in-can free formaldehyde in water-dilutable coating materials. Note: The standard can also be applied for polymer dispersions. The determination method for in-can free formaldehyde can be only of limited suitability for pigmented systems, as the inherent coloration of the material may have an influence on the detection method.

Ämnesområden: Färg och lack
Kommittébeteckning: SIS/TK 433 (Färg och lack)
Källa: CEN
Svarsdatum: den 20 maj 2024
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The method describes the quantitative determination of the in-can total formaldehyde content in water-dilutable coating materials. Main sources of formaldehyde are preservatives. NOTE: The standard is also applicable for polymer dispersions.

Ämnesområden: Färg och lack
Kommittébeteckning: SIS/TK 433 (Färg och lack)
Källa: CEN
Svarsdatum: den 20 maj 2024
Se merSe mindre
 

This document specifies the apparatus and analytical method for determining the content of in-can isothiazolinone preservatives in water-dilutable coating materials or related products. Note The document is also applicable for polymer dispersions.