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ASTM D4899-99(2016)

(Practice)

Standard Practice for Analysis of Vegetable Tanning Materials—General

Standard Practice for Analysis of Vegetable Tanning Materials—General

SIGNIFICANCE AND USE
3.1 Vegetable tanning materials are natural products containing various substances of varying composition, concentration and quality.  
3.2 The methods referenced are useful for analyzing and testing vegetable tanning materials for moisture, water-extractable substances, cold-soluble fractions, tannins, non-tannins, acidity, tanning properties, the color of tanned leather, and the presence or absence of certain admixtures.
SCOPE
1.1 This practice is intended for use in the chemical analysis of all vegetable tanning materials.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.

General Information

Status
Historical
Publication Date
31-Aug-2016
ICS
59.140.10 - Processes and auxiliary materials
Technical Committee
D31 - Leather
Drafting Committee
D31.01 - Vegetable Leather
Current Stage
Ref Project

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D4899 − 99 (Reapproved 2016)
Standard Practice for
Analysis of Vegetable Tanning Materials—General
This standard is issued under the fixed designation D4899; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D6405 Practice for Extraction of Tannins from Raw and
Spent Materials
1.1 This practice is intended for use in the chemical analysis
D6406 Test Method for Analysis of Sugar in Vegetable
of all vegetable tanning materials.
Tanning Materials
1.2 The values stated in SI units are to be regarded as
D6407 Test Method for Analysis of Iron and Copper in
standard. No other units of measurement are included in this
Vegetable Tanning Materials
standard.
D6408 Test Method for Analysis of Tannery Liquors
1.3 This standard does not purport to address all of the
D6409 Practice for Color Tests with Sheepskin Skiver
safety concerns, if any, associated with its use. It is the
D6410 Test Method for Determining Acidity of Vegetable
responsibility of the user of this standard to establish appro-
Tanning Liquors
priate safety and health practices and determine the applica-
2.2 ALCA Methods:
bility of regulatory limitations prior to use.
A1 Analysis of Vegetable Tanning Materials—General
A5 Extraction of Raw and Spent Materials
2. Referenced Documents
A6 Moisture in Raw and Spent Materials
2.1 ASTM Standards:
A10 Preparation of Solution of Liquid Extracts
D4900 Test Method for Lignosulfonates (Sulfite Cellulose)
A11 Preparation of Solution of Solid, Pasty, and Powdered
in Tanning Extracts
Extracts
D4901 Practice for Preparation of Solution of Liquid Veg-
A12 Cooling of Analytical Solutions
etable Tannin Extracts
A13 Evaporation and Drying of Analytical Solutions
D4902 Test Method for Evaporation and Drying of Analyti-
A20 Total Solids and Water
cal Solutions
A21 Soluble Solids and Insolubles
D4903 Test Method for Total Solids and Water in Vegetable
A22 Non-Tannins and Tannin
Tanning Material Extracts
A25 Analysis of Tannery Liquors
D4904 Practice for Cooling of Analytical Solutions
A30 Sugar in Tanning Materials
D4905 Practice for Preparation of Solution of Solid, Pasty
A31 Copper and Iron in Tanning Materials
and Powdered Vegetable Tannin Extracts
A40 Color Tests with Sheepskin Skiver
D6401 Test Method for Determining Non-Tannins and Tan-
A50 Lignosulfates (Sulfite Cellulose)
nin in Extracts of Vegetable Tanning Materials
A60 Official Certification
D6402 Test Method for Determining Soluble Solids and
J10 Sampling of Vegetable Materials Containing Tannin
Insolubles in Extracts of Vegetable Tanning Materials
D6403 Test Method for Determining Moisture in Raw and
2.3 Federal Specification
Spent Materials
DD-V-582 Volumetric Apparatus, Glass
D6404 Practice for Sampling Vegetable Materials Contain-
ing Tannin
3. Significance and Use
3.1 Vegetable tanning materials are natural products con-
This practice is under the jurisdiction ofASTM Committee D31 on Leather and
taining various substances of varying composition, concentra-
is the direct responsibility of Subcommittee D31.01 on Vegetable Leather. This
tion and quality.
practice has been adapted from and is a replacement for Method A1 of the Official
Methods of the American Leather Chemists Association.
Current edition approved Sept. 1, 2016. Published September 2016. Originally
approved in 1989. Last previous edition approved in 2009 as D4899–99 (2009).
DOI: 10.1520/D4899-99R16. Official Methods of the American Leather Chemists Association. Available
For referenced ASTM standards, visit the ASTM website, www.astm.org, or fromtheAmericanLeatherChemistsAssociation(ALCA),UniversityofCincinnati,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM P.
...


This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D4899 − 99 (Reapproved 2009) D4899 − 99 (Reapproved 2016)
Standard Practice for
Analysis of Vegetable Tanning Materials—General
This standard is issued under the fixed designation D4899; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice is intended for use in the chemical analysis of all vegetable tanning materials.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
2. Referenced Documents
2.1 ASTM Standards:
D4900 Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts
D4901 Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
D4902 Test Method for Evaporation and Drying of Analytical Solutions
D4903 Test Method for Total Solids and Water in Vegetable Tanning Material Extracts
D4904 Practice for Cooling of Analytical Solutions
D4905 Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
D6401 Test Method for Determining Non-Tannins and Tannin in Extracts of Vegetable Tanning Materials
D6402 Test Method for Determining Soluble Solids and Insolubles in Extracts of Vegetable Tanning Materials
D6403 Test Method for Determining Moisture in Raw and Spent Materials
D6404 Practice for Sampling Vegetable Materials Containing Tannin
D6405 Practice for Extraction of Tannins from Raw and Spent Materials
D6406 Test Method for Analysis of Sugar in Vegetable Tanning Materials
D6407 Test Method for Analysis of Iron and Copper in Vegetable Tanning Materials
D6408 Test Method for Analysis of Tannery Liquors
D6409 Practice for Color Tests with Sheepskin Skiver
D6410 Test Method for Determining Acidity of Vegetable Tanning Liquors
2.2 ALCA Methods:
A1 Analysis of Vegetable Tanning Materials—General
A5 Extraction of Raw and Spent Materials
A6 Moisture in Raw and Spent Materials
A10 Preparation of Solution of Liquid Extracts
A11 Preparation of Solution of Solid, Pasty, and Powdered Extracts
A12 Cooling of Analytical Solutions
A13 Evaporation and Drying of Analytical Solutions
A20 Total Solids and Water
A21 Soluble Solids and Insolubles
A22 Non-Tannins and Tannin
This practice is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.01 on Vegetable Leather. This practice
has been adapted from and is a replacement for Method A1 of the Official Methods of the American Leather Chemists Association.
Current edition approved April 1, 2009Sept. 1, 2016. Published July 2009September 2016. Originally approved in 1989. Last previous edition approved in 19992009 as
D4899–99. –99 (2009). DOI: 10.1520/D4899-99R09.10.1520/D4899-99R16.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Official Methods of the American Leather Chemists Association. Available from the American Leather Chemists Association (ALCA), University of Cincinnati, P.O. Box
210014, Cincinnati, OH 45221–0014.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D4899 − 99 (2016)
A25 Analysis of Tannery Liquors
A30 Sugar in Tann
...

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5.1 This practice provides a standard procedure for comparing the color of leather tanned with different tanning extracts or mixtures of extracts or for monitoring the color consistency of tannery liquors.
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