4 Metrology characteristics 4.1 Appearance The appearance and structure of the testing machine should be intact. The testing machine should have a nameplate, manufacturer, model, factory number and date, certificate, etc. 4.2 The temperature of the cold bath equipment can be maintained at (-20±0.5)℃. 6 Calibration items and calibration methods 6.1 Appearance Conduct an appearance inspection of the asphalt wax content meter in accordance with the measurement performance requirements 4.1. 6.2 Temperature Immerse the thermometer in the cold bath circular tank. After the temperature stabilizes, read the number every 2 minutes. After reading 10 times, take the arithmetic average as the temperature calibration result. Take half the difference between the maximum value and the minimum value of the measurement result as the temperature fluctuation.
T/HBJLXH 003-2023 history
2023T/HBJLXH 003-2023 Calibration method for asphalt wax content tester
2022T/HBJLXH 003-2022 Calibration Method of Free calcium oxide analyzer