(3) When, in a JIS Laboratory, the filler cap of the airtight oil  tank is opened and closed repeatedly for 5,000 times, and then  heating oil is supplied up to the oil tank capacity and the filler  cap is closed, and the airtight oil tank is suspended so that the  filler cap is facing downward, the heating oil does not drip, and  when the filler cap is wiped with a gauze after five minutes,  there is no heating oil oozing out.  (4) When, in a JIS Laboratory, heating oil is supplied to the  airtight oil tank up to the oil tank capacity, and the center of  the airtight oil tank handle is suspended at a position where the  nearest distance between the filler cap of the airtight oil tank  and an air-dried hardwood board with a thickness of 3  centimeters or more is 20 centimeters +/- 1 centimeter, and the  filler cap is dropped so that it is in direct contact with the  hardwood board, there is no oil leakage from the airtight oil  tank.  12 (1) The stove 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) Cautions stating that gasoline is strictly prohibited or the  use of gasoline is prohibited, and that the drying of clothes is  strictly prohibited are appropriately indicated in such a manner  whereby they do not fade easily.  (3) Precautions for use that will be necessary for ensuring safe  use are appropriately indicated in such a manner whereby they  do not fade easily.  10.  Lighters  1 The mechanism for generating a flame has a structure that  requires intentional manual operation, in order to minimize the  risk of ignition caused by carelessness or spontaneous ignition.  2 The height of the flame is restricted so that it does not exceed  the height assumed by the user.  3 The mechanism for adjusting the height of the flame has a  structure that allows the user to adjust the flame appropriately  to a height intended by the user.  4 In the case of a lighter using gas as a fuel, there is no  variation in the flame upon combustion.  5 It is possible to extinguish the flame appropriately within the  time assumed by the user.  6 In the case of a lighter using gas as a fuel, the filled fuel  amount is appropriate.  7 The outer shape of the lighter has a good-quality finish, and  has no crack or any other flaw that could hurt the user's hand or  foot.  8 When a fuel suitability test is conducted, the components of  the lighter do not deteriorate as a result of the fuel.  44 