This standard applies to the measurement of the temperature ratio between the radiation surface and the back surface of a plate-shaped infrared radiation heater (hereinafter referred to as the heater).
1987GB/T 7287.3-1987 Measuring method for the radio between radiant surface and rear surface of infrared heater
GB/T 7287.3-1987 Measuring method for the radio between radiant surface and rear surface of infrared heater was changed to GB/T 7287-2008 Test method of infrared heater.