Recently, the Institute of Thermometry, Henan Institute of Metrology, was drafted and compiled the "Asphalt Softening Point Calibration Instrument", and the "Regulations for Temperature and Humidity Recorder Calibration" were successfully approved by experts from the Henan Provincial Quality Supervision Bureau.
Asphalt softening point is used for asphalt material classification and is an important technical index in asphalt product standards. Asphalt softening point measuring instrument is mainly used to determine the softening point of materials such as road petroleum asphalt, coal asphalt, liquid petroleum asphalt and emulsified asphalt after evaporation. At present, there is no verification procedure and calibration specification for asphalt softening point measuring instrument in China, as a highway province in Henan Province, instrument More, there is an urgent need to establish local calibration specifications.
The temperature and humidity recorder is one of the temperature and humidity meters in the temperature and humidity measuring instrument. It has a built-in temperature and humidity sensor or can be connected to an external temperature and humidity sensor to measure temperature and humidity. For example, in food storage and transportation, museums and laboratories, etc. Use to Instrumentation Now that the temperature and humidity recorder has been used by more and more industries, the demand for testing will be more and more, and the formulation of the project standard is very necessary.
The expert group has reviewed and approved the two newly drafted calibration specifications, the preparation instructions, and the measurement results uncertainty evaluation report. Experts believe that: the technical specifications of the local calibration specifications are complete and complete, the method is scientific and reasonable, and the measurement unit is used correctly. The format is in accordance with the requirements, and the final validation results are all passed.
This formulation will establish a unified calibration specification, which stipulates the measurement standards and supporting equipment and technical requirements that are more in line with the current technical level, clarifies important concepts and calibration conditions, operation methods, and data processing methods, and provides calibration for the two devices. New technical regulations.
