ČSN EN 927-7

Paints and varnishes - Coating materials and coating systems for exterior wood - Part 7: Assessment of knot staining resistance of wood coatings

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Dostupné prevedenie: Tlačené

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Podrobné informácie

Označenie: ČSN EN 927-7

Dátum vydania: 01.10.2020

Stránok: 16

Krajina: Česká technická norma

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Anotácia

This document specifies a test method for assessing the discoloration of coating systems on wood due to wood extractives from knots. The discoloration is measured by colourimetry and the result is stated as the colour difference between the coated surface on the knot and the coated surface beside the knot

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