This part of the standard contains the requirements for glass fabrics with varnishes based on the following resins: epoxy - glass-fabric base, EP/G; polyurethane - glass-fabric base, PUR/G; silicone - glass-fabric base, SI/G; polyester - glass-fabric base, PE/G; bituminous - glass-fabric base, BT/G; oleoresinous - glass-fabric base, OR/G.