ISO 3727-1:2001 Butter - Determination of moisture, non-fat solids and fat contents - Part 1: Determination of moisture content (Reference method)
ISO 3727-2:2001 Butter - Determination of moisture, non-fat solids and fat contents - Part 2: Determination of non-fat solids content (Reference method)
EN ISO 3727-3:2003 history
2003EN ISO 3727-3:2003 Butter - Determination of moisture, non-fat solids and fat contents - Part 3: Calculation of fat content