Standards GB - Chinese national standards - Page 477

Directives for the work of reference materials—Part 3: Reference materials—Characterization and assessment of homogeneity and stability

Standard published on 23.5.2023

Directives for the work of reference materials—Part 4Contents of certificates,labels and accompanying documentation

Standard published on 10.12.2019

Directives for the work of reference materials—Part 4Contents of certificates, labels and accompanying documentation
Execute Date: may 2026

Standard published on 28.1.2026

Directives for the work of reference materials—Part 5:The in-house preparation of quality control materials(QCMs)

Standard published on 6.8.2023

Directives for the work of reference materials(6)--General rules for package of certified reference materials

Standard published on 4.11.1996

Directives for the work of reference materials—Part 7General requirements for the competence of reference material producters

Standard published on 30.4.2021

Directives for the work of reference materials—Part 8:Good practice in using reference materials

Standard published on 7.9.2023

Directives for the work of reference materials—Part 9Approaches for the production of reference materials with qualitative properties
Execute Date: june 2026

Standard published on 27.2.2026

General rules of dimensionsshape,surface quality, test method and inspection for elastic alloys

Standard published on 25.6.2009

Designations of corrosion-resistant alloy

Standard published on 7.9.2017