Test method for granular activated carbon from coal—Part 20: Determination of pore volume and specific surface area
NORMA vydaná dňa 1.8.2025
Designation standards: GB/T 7702.20-2025
Note: K dispozici od: listopad 2025
Publication date standards: 1.8.2025
Country: Chinese technical standard
Kategória: Technické normy GB