This European Standard specifies a method for determining the length and straightness of the edges and the squareness of floor coverings in the form of right-angled tiles.
EN 994:2012 Referenced Document
EN ISO 139:2005 Textiles - Standard atmospheres for conditioning and testing (ISO 139:2005)
EN 994:2012 history
2012EN 994:2012 Textile floor coverings - Determination of the side length, squareness and straightness of tiles
1995EN 994:1995 Textile Floor Coverings - Determination of the Side Length, Squareness and Straightness of Tiles