This International Standard specifies the methods to be used for sampling and testing bone and skin glues in the form of powder, granules, pearls or cubes. NOTE 1 The methods may be extended to the testing of other forms of animal glues by suitable calculation of the equivalent dry glue content. The precision of the test methods included in this International Standard is not known because interlaboratory data are not available. When interlaboratory data are obtained, precision statements will be added to the corresponding test methods at the next revision. NOTE 2 For details of precision statements, refer to ISO 5725-1:1994, Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions