Standard products are widely used in biological and chemical fields, as laboratory chemical reagents, for its detection and management is more important. How ...

Standard products and reference products refer to the standard substances used in the national drug standards for identification, inspection, content determina...

The definition of standard goods and standard substances exists only in our country, and there is no distinction abroad. The international standard Material ...

The national standard material is a substance or material that has been determined to have one or more sufficiently uniform characteristic values, which is use...

I don't know if you are familiar with the standard sample, but we can see it in many laboratories today. In fact, it is what people call the physical standard...

A reference is a standard item used to measure a standard value. In daily life and work, small partners are certainly rarely heard of this kind of item. With...

Reference product refers to the standard substance used for identification, inspection, content determination and calibration of the performance of the verific...

There are many varieties of reference products, and there are certain requirements for its preservation methods, generally speaking, the reference products sho...

National standard material refers to the standard material used for uniform quantity value. Reference materials for harmonizing quantity values include refere...