This Korean Industrial Standard specifies the bimetal type thermal switches (hereafter referred to as "bimetal thermal switch") to be used for the safety devices of gas appliances using liquefied petroleum gas(1) or town gas(2) having gas pressures of 3.3kPa(330mmH2O) or less. Note (1) Liquefied petroleum gas refers to the gas specified in KS M 2150.
(2) Town gas refers to the gas specified in KS B 8101. Remarks 1. The units and values given in ( ) in this standard are based on the traditional units and are appended for informative reference. 2. The standards cited in this standard are shown in Annexed table 1.