This part of EN 927 specifies a test method for assessing the discoloration of coatings on wood due to resin exudation from knots. The discoloration is measured as a colour difference between the coated surface on the knot and the coated surface beside the knot.
The colour difference is measured in accordance with ISO 7724.
This standard does not specify a limit for an acceptable colour difference
Registration number (WIID)
26602
Scope
This part of EN 927 specifies a test method for assessing the discoloration of coatings on wood due to resin exudation from knots. The discoloration is measured as a colour difference between the coated surface on the knot and the coated surface beside the knot.
The colour difference is measured in accordance with ISO 7724.
This standard does not specify a limit for an acceptable colour difference
