
Directives for the work of reference materials—Part 9Approaches for the production of reference materials with qualitative properties
NORMA vydána dne 27.2.2026
Designation standards: GB/T 15000.9-2026
Note: K dispozici od: červen 2026
Publication date standards: 27.2.2026
Country: Chinese technical standard
Kategorie: Technické normy GB