[The State Administration for Market Regulation releases 65 national metrology technical specifications] On September 1, the State Administration for Market Regulation recently released 65 national metrology technical specifications, covering more than 20 professional fields such as radio, ionizing radiation, medicine, biology, and digital measurement. The issuance of this batch of national metrology technical specifications will effectively support the quality improvement and technological progress of related industries and further ensure the safety of people's livelihood and market order. In terms of food safety, the newly formulated "Calibration Specifications for Edible Oil Quality Testers" provides a unified measurement and calibration basis for rapid testing equipment for edible oil quality. This specification is suitable for edible oil quality detectors used in on-site rapid testing, production enterprise quality control, supermarket self-inspection and other scenarios. By standardizing instrument calibration methods, we ensure that test data is accurate and reliable, which helps to promptly detect inferior oil and expired oil, and protect people's "safety on the tip of their tongues." In the field of ionizing radiation, the revised "Calibration Specifications for X-ray Security Inspection Instruments" released this time are widely used in the measurement calibration of security inspection equipment in public places. This specification stipulates unified calibration methods for key parameters such as image resolution, penetration, and radiation dose of X-ray security inspection instruments to ensure that security inspection equipment accurately identifies prohibited items and effectively controls the radiation dose within a safe range.