This International Standard specifies a method for the determination of the moisture and other volatile matter content of animal feeding stuffs. The method is applicable to animal feeding stuffs with the exception of: a) milk products; b) mineral substances; c) mixtures containing a considerable amount of milk products or mineral substances, for example milk replacers; d) animal feeding stuffs containing humectants (e.g. propylene glycol); e) the following simple animal feeding stuffs: animal and vegetable fats and oils (for which method A specified in ISO 662 [1] is applicable); oilseeds (for which a method is specified in ISO 665 [2]); oilseed residues (for which a method is specified in ISO 771 [3]); cereals, except maize, and cereal products (for which a method is specified in ISO 712 [4]); maize (for which the reference method specified in ISO 6540 [5] is applicable)