ASTM D 4243 : 2016 : REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Measurement of Average Viscometric Degree of Polymerization of New and Aged Electrical Papers and Boards
09-06-2023
English
01-12-2016
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 10.02, 2016 Defines a procedure for determining the average viscometric degree of polymerization (abbreviated DP[v]) of new or aged electrical papers.
| Committee |
D 09
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| DocumentType |
Redline
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| Pages |
7
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| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy |
1.1This test method describes a standard procedure for determining the average viscometric degree of polymerization (abbreviated 
) 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.
1.2The degree of polymerization (or the degree of condensation) of a particular cellulose molecule is the number of anhydro-β-glucose monomers, C6H10O5, 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.
1.3This 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
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