Standard Test Method for Dichloromethane-Soluble Matter in Cellulose
Standard Test Method for Dichloromethane-Soluble Matter in CelluloseD3971-89R04ASTM|D3971-89R04|en-USStandard Test Method for Dichloromethane-Soluble Matter in CelluloseStandardD3971 Standard Test Method for Dichloromethane-Soluble Matter in Cellulose>newBOS Vol. 06.03 Committee D01
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Significance and Use
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 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 and health practices and determine the applicability of regulatory limitations prior to use.
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