BS EN 60335-2-96. Household and similar electrical appliances. Safety. Part 2-96. Particular requirements for flexible sheet heating elements for room heating— 48 стр.
Electrical installations of buildings. Part 7: Requirements for special installations or locations. Section 701: Electrical installations in bathrooms— 17 стр.
Household and similar electrical appliances - Safety - Part 2-17: Particular requirements for blankets, pads, clothing and similar flexible heating appliances— 119 стр.