Standard Active Last Updated: Jan 11, 2019 Track Document
ASTM D3971-89(2019)

Standard Test Method for Dichloromethane-Soluble Matter in Cellulose

Standard Test Method for Dichloromethane-Soluble Matter in Cellulose D3971-89R19 ASTM|D3971-89R19|en-US Standard Test Method for Dichloromethane-Soluble Matter in Cellulose Standard new BOS Vol. 06.03 Committee D01
$ 55.00 In stock

Significance and Use

4.1 Dichloromethane-soluble materials are typically referred to as extractives. These extractives are comprised of organic materials that originated in the wood or cotton. The measure is an indication of the efficiency of removal of these substances during pulping and bleaching. The extractive level is of concern to dissolving pulp users since the presence of large amounts of extractives could inhibit the processing of cellulose into the desired derivative.

Scope

1.1 This test method covers the determination of dichloromethane-soluble matter in cellulose and is applicable to dissolving-type cellulose pulps prepared from cotton or wood.

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.

Price:
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Book of Standards Volume: 06.03
Developed by Subcommittee: D01.36
Pages: 2
DOI: 10.1520/D3971-89R19
ICS Code: 85.040