ASTM D3376-18
Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation

Standard No.

ASTM D3376-18

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D3376-18

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 AcidityAlkalinity 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 Hardness in Pulp 16 – 22 D202, D1126, & D2576 . . . Procedure Sections ASTM Method Reference TAPPI Method Reference 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. 1 These test methods are under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and are the direct responsibility of Subcommittee D09.01 on Electrical Insulating Products. Current edition approved Nov. 1, 2018. Published November 2018. Originally approved in 1975. Last previous edition approved in 2014 as D3376 – 14. DOI: 10.1520/D3376-18. *A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States 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. 1 2. Referenced Documents

ASTM D3376-18 Referenced Document

• ASTM D1030 Standard Test Method for Fiber Analysis of Paper and Paperboard
• ASTM D1126 Standard Test Method for Hardness in Water
• ASTM D1193 Standard Specification for Reagent Water
• ASTM D1711 Standard Terminology Relating to Electrical Insulation
• ASTM D202 Standard Test Methods for Sampling and Testing Untreated Paper Used for Electrical Insulation
• ASTM D2176 Standard Test Method for Folding Endurance of Paper by the M.I.T. Tester
• ASTM D774/D774M Standard Test Method for Bursting Strength of Paper
• ASTM D828 Standard Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus
• ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

ASTM D3376-18 history

• 2018 ASTM D3376-18 Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
• 2014 ASTM D3376-14 Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
• 1988 ASTM D3376-88(2009) Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
• 2005 ASTM D3376-88(2005) Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
• 1988 ASTM D3376-88(2000) Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation