3 When an empty-heating prevention test as specified in the General Rules for JIS Tests 19.2 is conducted in a JIS Laboratory, the results meet the following conditions. 

(1) Ignition is not possible unless there is water in the bathtub. 

(2) When water decreases after it has been supplied into the bathtub, the fire is extinguished within 10 seconds (within five minutes in the case of a pot-type heater) after the water level reaches the upper edge of the lower circulation tube (the lower edge of the lower circulation tube in the case of a forced- circulation heater). In addition, even if water is supplied into the bathtub and the fire is reignited immediately after it has been extinguished, neither a flame is produced outside the heater nor does the heater break. 

4 When a vibration test as specified in the General Rules for JIS Tests 29.1 and 29.2 is conducted in a JIS Laboratory, and the heater is vibrated at 195 centimeters per second per second with each of the frequencies of 0.3 seconds, 0.5 seconds, and 0.7 seconds, the results comply with the conditions set forth in (1) or (2) below, and no abnormal combustion occurs before the fire is extinguished. 

(1) The fire extinguishing device is activated within 10 seconds, and the fire is extinguished within 10 seconds after the fire extinguishing device has been activated. 

(2) In the case of a pot-type heater, the fire extinguishing device is activated within 10 seconds, and the heating oil is cut off instantly after the fire extinguishing device has been activated, the fire is extinguished within five minutes, and no flaming or ignition occurs in an ignition test of falling combustible material as specified in the General Rules for JIS Tests 30. 

5 In the case of a pressure-spray-type heater, when a flame failure protection test as specified in the General Rules for JIS Tests 52. is conducted in a JIS Laboratory, and the supply of heating oil is resumed, the heater does not automatically resume combustion. 

6 (1) The heater indicates the name of the Notifying Enterprise in such a manner whereby it does not fade easily; provided, however, that an abbreviated name or a mark for which the approval of the Minister of Economy, Trade and Industry has been obtained or a Registered Trademark which has been notified to the Minister of Economy, Trade and Industry may be indicated in lieu of the name of the Notifying Enterprise. 

(2) Precautions for use that will be necessary for ensuring safe use are appropriately indicated in such a manner whereby it does not fade easily. 

