ASTM-D4900 › Historical Revision Information
Standard Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts
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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.
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)
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Feb. 24, 1989