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ASTM International - ASTM D3376-18

Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation

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Organization: ASTM International
Publication Date: 1 November 2018
Status: active
Page Count: 10
ICS Code (Pulps): 85.040
significance And Use:

8.1 The conductivity of the water extract of electrical grade pulp results from electrolytic impurities in the pulp potentially present as ionizable acids, bases, salts, or a combination of these.... View More

scope:

1.1 These test methods cover the sampling and testing of cellulosic pulps for use in the manufacture of electrical insulating papers and boards or in the direct application of pulp fibers as insulation to electrical conductors.

Note 1: Consider the significance of any one pulp property test method, as set forth herein, with discretion depending on the product made from the pulp.

1.2 Sections on Reagents, Sampling, and Report are integral parts of each of the individual test methods that follow.

1.3 Each test method is described as being a measure of either a bulk property of the pulp or a property of a handsheet formed from the pulp.

1.3.1 Bulk characteristics determinable by these procedures appear in the following sections:

Procedure

Sections

ASTM
Method
Reference

TAPPI
Method
Reference

Aqueous Extract Conductivity 8 & 9 D202 . . .
Aqueous Extract pH 10 & 11 D202 . . .
Aqueous Extractable Acidity-
     Alkalinity
12 & 13 D202 . . .
Analysis of Ash for Cations by
     Atomic Absorption Spectrophotometry
70 - 78 D1193 & D2576 . . .
Ash Content 79 - 82 D202 T 413
Dirt in Pulp 40 & 41 . . . T 213
Fiber Analysis 23 & 24 D202 & D1030 . . .
Fiber Length of Pulp 42 & 43 . . . T 232, T 233
Freeness (Canadian Standard
     Freeness)
53 & 54 . . . T 227
Kappa Number/Permanganate
     Number (Substances Oxidizable
     by Permanganate)
27 & 28 . . . T 236, UM 251
Laboratory Processing of Pulp
     (Beater Method)
51 & 52 . . . T 200
Moisture in Pulp 31 - 33 . . . T 210
Neutral Aqueous Extractable  Hard-
     ness in Pulp
16 - 22 D202, D1126, & D2576 . . .
Pentosan Content of Pulp 29 & 30 . . . T 223
Resistance of Pulp to Disintegration
     (Standard RPG)
44 - 50 . . . T 239, UM 252
Shive Count 34 - 39 . . . . . .
Solvent-Soluble Matter in Pulp 25 & 26 D202 . . .
Tensile Properties 65 - 69 D202 . . .
Water-Extractable Chlorides 14 & 15 D202 . . .

1.3.2 Handsheet characteristics determinable by these procedures appear in the following sections:

Procedure

Sections

ASTM
Method
Reference

TAPPI
Method
Reference

Air Resistance (Porosity) 57 & 58 D202 T 205
Apparent Density 63 & 64 D202 T 205
Bursting Strength 59 & 60 D202 & D774/D774M T 205
Folding Endurance (M.I.T.) 51 & 52 D202 & D2176 T 205
Forming Handsheets for Physical
     Tests of Pulp
55 & 56 . . . T 205
Tensile Strength 65 & 66 D202 & D828 T 205

Note 2: Methods for Ash, Silica, selected cations from Ash, Heat Stability, α, β, and γ Cellulose, Viscosity, Total Chlorine, Tear, and Dissipation Factor and Relative Permittivity, will be considered for addition as methods are developed.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 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.

1.6 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.

Document History

ASTM D3376-18
November 1, 2018
Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
1.1 These test methods cover the sampling and testing of cellulosic pulps for use in the manufacture of electrical insulating papers and boards or in the direct application of pulp fibers as...
November 1, 2014
Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
1.1 These test methods cover the sampling and testing of cellulosic pulps for use in the manufacture of electrical insulating papers and boards or in the direct application of pulp fibers as...
October 1, 2009
Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
1.1 These test methods cover the sampling and testing of cellulosic pulps for use in the manufacture of electrical insulating papers and boards or in the direct application of pulp fibers as...
September 1, 2005
Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
1.1 These test methods cover the sampling and testing of cellulosic pulps for use in the manufacture of electrical insulating papers and boards or in the direct application of pulp fibers as...
April 10, 2000
Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
1.1 These test methods cover the sampling and testing of cellulosic pulps for use in the manufacture of electrical insulating papers and boards or in the direct application of pulp fibers as...
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