ASTM-D4243 2004

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D4243-99(2004)e1 Standard Test Method for Measurement of Average Viscometric Degree of Polymerization of New and Aged Electrical Papers and Boards

Published By	Publication Date	Number of Pages
ASTM	2004	7

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Categories: 29.035.10 - Paper and board insulating materials, ASTM

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Description

1.1 This test method describes a standard procedure for determining the average viscometric degree of polymerization (abbreviated DP v ) 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–glucose monomers, C 6 H 10 O 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 may be obtained by other methods.

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

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method Significance and Use
2	Interferences Apparatus Reagents Preparation of Specimens Procedure
3	Calculation
4	Validity of Results Report Precision and Bias Keywords TABLE 1
5	A1. PREPARATION OF THE CUPRIETHYLENE-DIAMINE SOLUTION A1.1 Reagents A1.2 Preparation of the Copper Hydroxide A1.3 Preparation of the Ethylene-Diamine Solution A1.4 Preparation of the Cupriethylene-Diamine Solution
6	A2. CHECKING THE RATIO C ED/C Cu OF THE CUPRIETHYLENE-DIAMINE SOLUTION A2.1 Reagents A2.2 Copper Content: A2.3 Ethylene-Diamine Content X1. VISCOSITY CALCULATIONS X1.1 X1.2 X1.3 X1.4

Additional information

Standard Title	D4243-99(2004)e1 Standard Test Method for Measurement of Average Viscometric Degree of Polymerization of New and Aged Electrical Papers and Boards
Published Code	ASTM
Publication Date	2004
Pages Count	7
ICS Codes	29.035.10 - Paper and board insulating materials

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ASTM-D4243 2004

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