DS/EN 927-7:2020

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


Status:
Current
Type:
Standard
Language:
English
Price from:
€ 41.82

Scope

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.


Number of pages: 14

Published: 2020-04-28

Date of approval: 2020-04-27

International relationships : EN 927-7:2020 IDT

ICS: 87.040 - Paints and varnishes

Item number: M327794


Committees

Committee

  • CEN/TC 139
  • CEN/TC 139/WG 2

Danish committee

DS/S-305