ASTM D4900-99

Standard Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts

STANDARD published on 10.5.1999

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The information about the standard:

Designation standards: ASTM D4900-99
Note: WITHDRAWN
Publication date standards: 10.5.1999
SKU: NS-29085
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM D4900-99 :

Keywords:

Cellulose and cellulose derivatives, Leather-tanning materials, Lignosulfonates, Purity, lignosulfonates (sulfite cellulose) in tanning extracts, test, ICS Number Code 59.140.10 (Processes and auxiliary materials)

Additional information

1. Scope

1.1 This test method is intended for use in detecting the presence of lignosulfonates (sulfite cellulose) in extracts of 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.

2. Referenced Documents

	Lignosulfonates (Sulfite Cellulose) Official Methods of the American Leather Chemists Association. Available from the American Leather Chemists Association, University of Cincinnati, P.O. Box 210014, Cincinnati, OH 452210014.
D4901-99(2026)	Standard Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts
D4905-99(2026)	Standard Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts
D6405-99(2020)	Standard Practice for Extraction of Tannins from Raw and Spent Materials
D6404-99(2020)	Standard Practice for Sampling Vegetable Materials Containing Tannin

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