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Article selector: Chu Chen   |   Release date:2024/9/14 18:01:12   |   Number of views: 53

Recently learned from the State Administration for Market Regulation，January to July 2024，The Bureau approved the release of 324 new national reference materials，including 30 national first-class reference materials、294 items of secondary reference materials。As of now，The State Administration for Market Regulation has approved the release of more than 17,600 national reference materials，The ability to recognize reference materials in international metrology has ranked first in the world。

Standard materials are used to carry out chemistry、Indispensable "rulers" and "weights" for biological and other testing activities，is a key element in building national metrological capabilities。In recent dafabet casino mobile appyears，my country strengthens high-precision carbon monitoring、Food Safety Testing、Development of standard materials in fuel quality testing and other fields，Newly released a series of standard materials。

High-precision carbon monitoring，Gas reference material required。Newly released carbon dioxide in synthetic air and methane greenhouse gas standard materials in synthetic air，The accuracy of the magnitude values ​​is 0.05% (equivalent to the change in carbon dioxide concentration caused by one breath of an adult in a room of 30 square meters) and 0.1%。Currently，These two reference materials have served the carbon monitoring and assessment pilot work，Provide an “accurate ruler” for the accuracy of my country’s greenhouse gas monitoring data。

Enrofloxacin is a fluoroquinolone，Effective in preventing and treating animal bacterial diseases and mycoplasma infections。However, human ingestion of enrofloxacin may cause allergic reactions，Delay and disrupt the growth of normal flora，Even produce bacterial resistance and other effects。Newly released reference materials for analysis of enrofloxacin and sulfadiazine residues in beef meal，Be able to ensure the accuracy of dafabet live casinorelevant veterinary drug residue measurement results，Provide strong support to protect public health and safety。

Diesel quality standards，Safety to fuel、Reliability and environmental friendliness are paramount。Octane number、Low sulfur content and appropriate viscosity are the keys to ensuring normal combustion of diesel fuel，Combustion performance is one of the important indicators to measure the quality of diesel fuel。Newly released diesel cetane number、n-decane purity、n-Undecane purity、n-Dodecane Purity、N-tridecane purity and hydrocarbon content series of standard materials，Can be used for fuel product performance testing，Promote improvement of fuel quality。

Source: Guangming Daily