First of all, we need to understand how to classify the standard products, although we often see what traditional Chinese medicine standards, the standard pro...

Calibration product, standard product and quality control product are all reference materials. A reference substance is a material or substance for which one ...

In order to have a common standard to ensure the quality of products, reference products and standards have become part of people's lives. So what are the sta...

The standard material is a tool and means for the transfer of quantity value, and the standard sample is a national physical standard developed to ensure the i...

Standard goods, that is, standard goods, is the Chinese medicine standard standard products research center agent as a measuring standard; When used as a dru...

A standard substance is a material or substance whose characteristic values have been well determined and are sufficiently uniform and accompanied by a certifi...

A certified reference material is a reference material "accompanied by a document issued by an authoritative authority providing one or more characteristic val...

A reference substance is a substance or material that has been determined to have one or more sufficiently uniform characteristic values, and is used as a "mea...

The standard material is the core and basic part of the technical foundation, and is an important guarantee of the quality of the analytical measurement result...