Filtrar:
ISO
ISO 7404-1:2025
En Vigor
2025-10-27
Coal — Methods for petrographic analysis — Part 1: Vocabulary
ISO
ISO 7404-3:2025
En Vigor
2025-10-27
Coal — Methods for petrographic analysis — Part 3: Method of determining
maceral group composition
ISO
ISO 11093-2:2025
En Vigor
2025-10-27
Paper and board — Testing of cores — Part 2: Conditioning of test samples
ISO
ISO 7404-4:2025
En Vigor
2025-10-27
Coal — Methods for petrographic analysis — Part 4: Method of determining
microlithotype, carbominerite and minerite composition
