HG/T 6277-2024
UNE-EN 13466-1:2002
Fertilizers - Determination of water content (Karl Fischer methods) - Part 1: Methanol as extracting medium.
DIN EN 13466-1
Fertilizers - Determination of water content (Karl Fischer methods) - Part 1: Methanol as extracting medium; English version of DIN EN 13466-1
ISO 6977:1983
Natural gas — Determination of water and methanol contents — Gas chromatographic method