GB/T 37885-2019Chemical reagent—Classification (English PDF)

2.1 Classification method

This standard is divided into three levels according to the line classification method, which are large, medium and small. Medium and small classes have containment items, small classes

In principle, it belongs to the middle class and is the basic type that constitutes the middle class. For the middle class that cannot be subdivided or the individual is small, it is no longer divided into small classes.

2.2 Major categories

Chemical reagents are divided into the following ten categories according to product use.

a) basic inorganic chemical reagents;

b) basic organic chemical reagents;

c) high purity reagents;

d) reference materials/standard samples and controls (excluding biochemical reference materials/standard samples and controls);

e) chemical reagents for chemical analysis;

f) chemical reagents for instrumental analysis;

g) chemical reagents for life sciences (including biochemical reference materials/standard samples and controls);

h) isotope chemical reagents;

i) special chemical reagents;

j) Other chemical reagents.

2.3 Medium and small classes

Each major category is divided into the following intermediate and minor categories according to their different characteristics and their internal relationship.

a) Basic inorganic chemical reagents are divided into 8 sub-categories and 78 sub-categories according to the elemental or compound structure;

b) Basic organic chemical reagents are divided into 28 subclasses and 124 subcategories according to the structure of the compound;

c) High purity reagents are divided into 10 intermediate categories according to their use;

d) Standard materials/standard samples and reference materials are divided into 3 sub-categories and 24 sub-categories according to their purposes;

e) Chemical reagents for chemical analysis are divided into 6 sub-categories and 9 sub-categories according to their purposes;

f) Chemical reagents for instrumental analysis are divided into 19 intermediate categories according to their use;

g) chemical reagents for life sciences are divided into 8 sub-categories and 18 sub-categories according to the combination of compound structure, properties and uses;

h) Isotope chemical reagents are divided into 2 subclasses and 14 subcategories according to their purposes;

i) Special chemical reagents are divided into 11 sub-categories and 20 sub-categories according to their purposes;

j) Inclusion of other chemical reagents for chemical agents that cannot be classified as described above.