GOST EN 1849-2-2011 Roofing and hydraulic-insulating flexible polymeric (thermoplastic or elastomer) materials. Methods for determination of thickness and mass per unit area
EN 13416:2001 Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Rules for sampling
GOST EN 1849-2-2011 history
2011GOST EN 1849-2-2011 Roofing and hydraulic-insulating flexible polymeric (thermoplastic or elastomer) materials. Methods for determination of thickness and mass per unit area