|
|
baicaizfl 发表于 2016-8-29 21:00 3 j4 c: ?6 {( a6 c. V1 E1 D
湿布干一次热表面温度达到204摄氏度时断电2分钟,在这2分钟内换湿布,再等湿布干了热表面温度达到204摄氏 ...
3 a# h- v& J2 b# o7 b* ?1 m0 q# N为什么是4次?标准上说是两次而已吧??
/ |/ M+ l! H( W: h- r标准原文: 44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened cloth and then operated until the moisture has been evaporated and the heating surface of the unit has attained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during which it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be conducted a second time. The complete cycle is then to be repeated again. Temperatures are to be measured throughout the test. |
|