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ASTM D 2868 : 2017

Current
Current

The latest, up-to-date edition.

Standard Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather, Wet Blue and Wet White
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-04-2017

CONTAINED IN VOL. 15.04, 2017 Specifies the determination of the nitrogen content of all types of leather, wet blue and wet white.

1.1This 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.

Note 2:Melamine, if present in bonded leather, could give an artificially high value for the calculation of protein fiber.

1.2The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3This 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.

1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Committee
D 31
DocumentType
Test Method
Pages
5
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 6020 :2000 Standard Practice for Calculation of (Non-Mineral) Combined Tanning Agents and Degree of Tannage
MIL-PRF-3122 Revision K:2016 Leather, Cattlehide, for Footwear Uppers and Gusset, Chrome Tanned, Fatliguored
ASTM D 6016 : 2017 Standard Test Method for Determination of Nitrogen, Water Extractable in Leather
ASTM D 6020 : 2000 : R2005 Standard Practice for Calculation of (Non-Mineral) Combined Tanning Agents and Degree of Tannage
ASTM D 6020 : 2000 : R2016 Standard Practice for Calculation of (Non-Mineral) Combined Tanning Agents and Degree of Tannage
ASTM D 6020 : 2000 : R2010 Standard Practice for Calculation of (Non-Mineral) Combined Tanning Agents and Degree of Tannage
ASTM D 2807 : 2017 : REV A Standard Test Method for Chromic Oxide in Leather (Perchloric Acid Oxidation)
ASTM D 6016 : 2017 : REDLINE Standard Test Method for Determination of Nitrogen, Water Extractable in Leather

ASTM E 177 : 1990 : REV A : R1996 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E 177 : 2014 : REDLINE Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM D 2813 :2003 Standard Practice for Sampling Leather for Physical and Chemical Tests
ASTM D 6659 : 2008 Standard Practice for Sampling and Preparation of Wet Blue for Physical and Chemical Tests
ASTM D 6659 : 2016 Standard Practice for Sampling and Preparation of Wet Blue and Wet White for Physical and Chemical Tests
ASTM E 691 : 2020 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 6659 : 2001 Standard Practice for Sampling and Preparation of Wet Blue for Physical and Chemical Tests
ASTM E 691 : 2019 : EDT 1 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2023 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 2813 : 2003 : R2013 Standard Practice for Sampling Leather for Physical and Chemical Tests
ASTM E 691 : 2022 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 2813 : 2003 : R2021 Standard Practice for Sampling Leather for Physical and Chemical Tests
ASTM E 691 : 2009 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 2813 : 1997 Standard Practice for Sampling Leather for Physical and Chemical Tests
ASTM D 6659 : 2001 : R2007 Standard Practice for Sampling and Preparation of Wet Blue for Physical and Chemical Tests
ASTM E 691 : 2021 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 6659 : 2016 : REDLINE Standard Practice for Sampling and Preparation of Wet Blue and Wet White for Physical and Chemical Tests
ASTM D 6659 : 2010 : R2015 Standard Practice for Sampling and Preparation of Wet Blue for Physical and Chemical Tests
ASTM D 6659 : 2010 Standard Practice for Sampling and Preparation of Wet Blue for Physical and Chemical Tests
ASTM D 6659 : 2016 : R2021 Standard Practice for Sampling and Preparation of Wet Blue and Wet White for Physical and Chemical Tests
ASTM D 2813 : 2003 : R2008 Standard Practice for Sampling Leather for Physical and Chemical Tests

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