Cart
(empty)
1.1 ,This test method covers the determination of the nitrogen content of all types of leather, wet blue and wet white. The nitrogen content is used to calculate the hide substance (protein fiber) content of leather, wet blue and wet white.
Note 1: ,The original test method for leather was essentially a composite of Method ,6441 of Federal Test Method Standard No. 311 and Method B5 of the American Leather Chemists Association.