Specification for varnished fabrics and tapes for electrical purposes|Textile glass, Cotton, Dielectric strength, Textile testing, Electrical insulating materials, Polyethylene terephthalate, Varnished products, Designations, Thickness, Mechanical testing, Tensile strength, Solid electrical insulating materials, Thermal stability, Test equipment, Specimen preparation, Width, Narrow fabrics, Polyamides, Tensile testing, Thermal testing, Silk, Tape, Tear tests, Cloth, Strength of materials, Textile products, Dielectric-strength tests, Extensibility, Marking, Packaging, Acidity, Woven fabrics