ASTM D4243 - 16 - Standard Test Method for Measurement of Average Viscometric Degree of Polymerization of New and Aged Electrical Papers and Boards

ASTM D4243 - 16

Standard Test Method for Measurement of Average Viscometric Degree of Polymerization of New and Aged Electrical Papers and Boards

Status : Current   Published : November 2016

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1.1 This test method describes a standard procedure for determining the average viscometric degree of polymerization (abbreviated

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) of new or aged electrical papers. The determination is made by measuring the intrinsic viscosity of a solution of the paper in an appropriate solvent.

1.2 The degree of polymerization (or the degree of condensation) of a particular cellulose molecule is the number of anhydro-β-glucose monomers, C 6H 10O 5, in the cellulose molecule. Within a sample of paper, not all the cellulose molecules have the same degree of polymerization so that the mean value measured by viscometric methods is not necessarily the same as that which are obtained by other methods.

1.3  This standard may involve hazardous materials, operations, and equipment. 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 to determine the applicability of regulatory limitations prior to use. See Section 9




Standard NumberASTM D4243 - 16
TitleStandard Test Method for Measurement of Average Viscometric Degree of Polymerization of New and Aged Electrical Papers and Boards
StatusCurrent
Publication Date01 November 2016
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Aging, Board, Cellulose, Cupriethylene-diamine, Degree of polymerization, Paper, Pressboard, Viscometry
ICS29.035.10
PublisherASTM
FormatA4
DeliveryYes
Pages7
File Size100 KB
Price£40.00


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