ČSN EN ISO 4629-3 (673041)

Pojiva pro nátěrové hmoty - Stanovení hydroxylového čísla - Část 3: Rychlá zkouška (Norma k přímému použití jako ČSN).

NORMA vydána dne 1.3.2021

The information about the standard:

Designation standards: ČSN EN ISO 4629-3
Classification mark: 673041
Catalog number: 511548
Publication date standards: 1.3.2021
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN

Annotation of standard text ČSN EN ISO 4629-3 (673041):

This document specifies a titrimetric method for determining the hydroxyl groups in resins and binders for paints and varnishes. This method is primarily suitable for neutral media. Acidic products provide higher values; neutral products provide, through neutralization of the acidic carbamates, lower values. For these products, preliminary tests are performed to ensure the applicability of the method