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ASTM International - ASTM D2868-07

Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather

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Organization: ASTM International
Publication Date: 1 April 2007
Status: inactive
Page Count: 3
ICS Code (Leather and furs): 59.140.30
significance And Use:

The nitrogen content as determined by this test method is normally considered to be related to the amount of hide substance (protein fiber) present in the leather sample. A factor of 5.62 is... View More

scope:

1.1 This test method covers the determination of the nitrogen content of all types of leather. The nitrogen content is used to calculate the hide substance (protein fiber) content of leather.

Note 1-This test method is essentially a composite of Method 6441 of Federal Test Method Standard No. 311 and Method B 5 of the American Leather Chemists Association.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

April 1, 2017
Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather, Wet Blue and Wet White
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)...
December 1, 2015
Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather, Wet Blue and Wet White
4.1 The nitrogen content as determined by this test method is normally considered to be related to the amount of hide substance (protein fiber) present in the leather sample. A factor of 5.62 is...
November 1, 2010
Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
The nitrogen content as determined by this test method is normally considered to be related to the amount of hide substance (protein fiber) present in the leather sample. A factor of 5.62 is normally...
ASTM D2868-07
April 1, 2007
Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
The nitrogen content as determined by this test method is normally considered to be related to the amount of hide substance (protein fiber) present in the leather sample. A factor of 5.62 is normally...
May 10, 1996
Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
1.1 This test method covers the determination of the nitrogen content of all types of leather. The nitrogen content is used to calculate the hide substance (protein fiber) content of leather. Note...
May 10, 1996
Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather
1.1 This test method covers the determination of the nitrogen content of all types of leather. The nitrogen content is used to calculate the hide substance (protein fiber) content of leather. Note...
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