ONORM B 3651 Teil.1-1988 Roll roofings and waterproojing sheets consisting of bitumen and glass fibre (fleece) base materials; requirements, marking of conformity
This "NORM" specifies the technical requirements for bitumen roofing and waterproofing membranes (bitumen membranes) with glass fleece inserts.
ONORM B 3651 Teil.1-1988 history
1988ONORM B 3651 Teil.1-1988 Roll roofings and waterproojing sheets consisting of bitumen and glass fibre (fleece) base materials; requirements, marking of conformity