Published
This European Standard specifies three methods for determining conventional pattern depth by change in appearance of the characteristics of the pattern of resilient floor coverings which are classified as follows: Group 1: Patterns where the different bands (in colour and/or relief) are distributed in a uniform manner, wher the ration of pattern to background in small areas of 0,01 m2 to 0,02 m2 in not more than 1:4; Group 2: Patterns where this ration varies considerably where some areas of 0,01 m2 to 0,02 m2 may contain only one part of the pattern.
Directives related to this standards.
Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
PUBLISHED
SSH EN 663:1997
60.60
Standard published
Jan 1, 2007