This procedure is applicable to the initial verification and subsequent verification of the -189.3442°C ~ 660.323°C (or various temperature zones) working standards, first-class and second-class standard platinum resistance thermometers.
2007JJG 160-2007 Standard Platinum Resistance Thermometer
1992JJG 160-1992 Verification Regulation of Standard Platinum Resistance Thermometer
1991JJG 716-1991 Verification Regulation of 0~419.527℃ Working Standard Platinum Resistance Thermometer
JJG 160-2007 Standard Platinum Resistance Thermometer has been changed from JJG 716-1991 Verification Regulation of 0~419.527℃ Working Standard Platinum Resistance Thermometer.
JJG 160-2007 Standard Platinum Resistance Thermometer has been changed from JJG 859-1994 Verification Regulation of the Standard long-Stem Platinum Resistance Thermometer.