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ASTM D4899-99

(Practice)

Standard Practice for Analysis of Vegetable Tanning Materials-General

Standard Practice for Analysis of Vegetable Tanning Materials-General

SCOPE
1.1 This practice is intended for use in the chemical analysis of all vegetable tanning materials.
1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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
09-May-1999
ICS
59.140.10 - Processes and auxiliary materials
Technical Committee
D31 - Leather
Drafting Committee
D31.01 - Vegetable Leather
Current Stage
Ref Project

Relations

Replaced By
ASTM D4899-99(2004) - Standard Practice for Analysis of Vegetable Tanning Materials-General
Effective Date
01-Apr-2004

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ASTM D4899-99 - Standard Practice for Analysis of Vegetable Tanning Materials-GeneralASTM D4899-99 - Standard Practice for Analysis of Vegetable Tanning Materials-General
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ASTM D4899-99 - Standard Practice for Analysis of Vegetable Tanning Materials-General
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D 4899 – 99
Standard Practice for
Analysis of Vegetable Tanning Materials—General
This standard is issued under the fixed designation D 4899; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 6409 Practice for Color Tests with Sheepskin Skiver
D 6410 Test Method for Determining Acidity of Vegetable
1.1 This practice is intended for use in the chemical analysis
Tanning Liquors
of all vegetable tanning materials.
2.2 ALCA Methods:
1.2 This standard does not purport to address all of the
A1 Analysis of Vegetable Tanning Materials—General
safety concerns, if any, associated with its use. It is the
A5 Extraction of Raw and Spent Materials
responsibility of the user of this standard to establish appro-
A6 Moisture in Raw and Spent Materials
priate safety and health practices and determine the applica-
A10 Preparation of Solution of Liquid Extracts
bility of regulatory limitations prior to use.
A11 Preparation of Solution of Solid, Pasty, and Powdered
2. Referenced Documents Extracts
A12 Cooling of Analytical Solutions
2.1 ASTM Standards:
A13 Evaporation and Drying of Analytical Solutions
D 4900 Test Method for Lignosulfates (Sulfite Cellulose) in
A20 Total Solids and Water
Tanning Extracts
A21 Soluble Solids and Insolubles
D 4901 Practice for Preparation of Solution of Liquid Veg-
A22 Non-Tannins and Tannin
etable Tannin Extracts
A25 Analysis of Tannery Liquors
D 4902 Test Method for Evaporation and Drying of Ana-
A30 Sugar in Tanning Materials
lytical Solutions
A31 Copper and Iron in Tanning Materials
D 4903 Test Method for Total Solids and Water in Vegetable
A40 Color Tests with Sheepskin Skiver
Tanning Material Extracts
A50 Lignosulfates (Sulfite Cellulose)
D 4904 Practice for Cooling of Analytical Solutions
A60 Official Certification
D 4905 Practice for Preparation of Solution of Solid, Pasty
J10 Sampling of Vegetable Materials Containing Tannin
and Powdered Vegetable Tannin Extracts
2.3 Federal Specification
D 6401 Test Method for Determining Non-Tannins and
DD-V-582 Volumetric Apparatus, Glass
Tannin in Extracts of Vegetable Tanning Materials
D 6402 Test Method for Determining Soluble Solids and
3. Significance and Use
Insolubles in Extracts of Vegetable Tanning Materials
3.1 Vegetable tanning materials are natural products con-
D 6403 Test Method for Determining Moisture in Raw and
2 taining various substances of varying composition, concentra-
Spent Materials
tion and quality.
D 6404 Practice for Sampling Vegetable Materials Contain-
2 3.2 The methods referenced are useful for analyzing and
ing Tannin
testing vegetable tanning materials for moisture, water-
D 6405 Practice for Extraction of Tannins from Raw and
2 extractable substances, cold-soluble fractions, tannins, non-
Spent Materials
tannins, acidity, tanning properties, the color of tanned leather,
D 6406 Test Method for Analysis of Sugar in Vegetable
2 and the presence or absence of certain admixtures.
Tanning Materials
D 6407 Test Method for Analysis of Iron and Copper in
4. Samples and Specimens
Vegetable Tanning Materials
2 4.1 The preparation of the composite sample of a vegetable
D 6408 Test Method for Analysis of Tannery Liquors
tanning material for analysis purposes shall be as described in
ALCA Method J10.
This practice is under the jurisdiction of ASTM Committee D-31 on Leather
and is the direct responsibility of Subcommittee D31.01 on Vegetable Leather. This
practice has been adapted from a
...

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5.1 This test method is used to determine the chemical properties of tannery liquors which are relevant for the vegetable tanning process and influence the astringency of vegetable tanning liquors. The astringency of liquors is dependent upon the solids and tannin content and the acidity. This method provides a standard procedure for determining these properties for any sample of vegetable tanning liquor.  
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1.1 This test method covers the analysis of tannery liquors made up from vegetable tanning materials.  
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