
Plastics—General test method for polyurethane raw materials—Part 1:Determination of hydroxyl number of polyols by NIR spectroscopy
NORMA vydána dne 29.8.2025
Designation standards: GB/T 46231.1-2025
Note: K dispozici od: březen 2026
Publication date standards: 29.8.2025
Country: Chinese technical standard
Kategorie: Technické normy GB