ASTM-D4900 2020

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D4900-99(2020) Standard Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts

Published By	Publication Date	Number of Pages
ASTM	2020

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Categories: 59.140.10 - Processes and auxiliary materials, ASTM

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Description

ASTM D4900-99-Reapproved2020

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

ASTM D4900

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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This 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.

Keywords

lignosulfonates; sulfite cellulose; tannin analysis; vegetable tannin analysis;

ICS Code

ICS Number Code 59.140.10 (Processes and auxiliary materials)

DOI: 10.1520/D4900-99R20

Additional information

Standard Title	D4900-99(2020) Standard Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts
Published Code	ASTM
Publication Date	2020
ICS Codes	59.140.10 - Processes and auxiliary materials