UL 2158-2021 pdf download – Electric Clothes Dryers.
5.3 Test fabric 5.3.1 The fabric used for tests shall be bleached, preshrunk cotton suiting, having a warp of 21 – 23 threads per cm and a filling of 18 – 20 threads per cm. Individual cloths shall be 610 × 915 mm, double hemmed to a size of approximately 560 × 865 mm. A small number of smaller cloths, 305 × 305 mm, double hemmed to a size of 255 × 255 mm, may be used if necessary to make the total weight of cloth correct. 5.4 Thermocouples 5.4.1 Thermocouples shall consist of wires not larger than 24 AWG (0.21 mm 2 ). The thermocouple wire shall conform with the requirements for Special Tolerances thermocouples as listed in the Tolerances on Initial Values of EMF versus Temperature tables in the ANSI/ASTM E230/E230M. 5.5 Laundry detergent 5.5.1 Whenever laundry detergent is required for a test in this Standard it shall be AHAM detergent or any other powdered laundry detergent having similar properties. 5.6 Cheesecloth for heating and abnormal tests 5.6.1 Whenever cheesecloth is required for a test in this Standard, the cloth shall be bleached cotton cheesecloth running approximately 34 g/m 2 with a thread count in the range of 10 – 13 × 9 – 12 threads/cm. 5.7 Test temperature 5.7.1 The tests shall be conducted in a draught-free location and, in general, at an ambient temperature in the range of 10 – 40°C. 6 Marking and Instructions 6.1 Marking Note: In Canada, there are two official languages. Therefore, it is necessary to have CAUTION, WARNING, and DANGER markings in both English and French. Annex A lists acceptable French translations ofthe markings specified in this Standard. When a product is not intended foruse in Canada, cautionarymarkings maybe provided in English only. 6.1.1 General 6.1.1.1 A marking that is required to be permanent shall be moulded, die-stamped, paint-stenciled, stamped, or etched metal that is permanently secured, or indelibly stamped on a pressure-sensitive label secured by adhesive. Pressure-sensitive labels and adhesive shall comply with CSA-C22.2 No. 0.15 and UL 969.
6.1.1.3 A cautionary marking intended to instruct the operator shall be legible and visible to the operator during normal operation of the appliance. A marking giving servicing instructions shall be legible and visible when such servicing is being performed. 6.1.1.4 A cautionary marking shall be prefixed by the word “CAUTION”, “WARNING”, or “DANGER” in letters not less than 3.2 mm high. The remaining letters of such marking shall not be less than 1.6 mm high.