ASTM D3376-88(2000)
- Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
- standard by ASTM International, 04/10/2000
- Publisher: ASTM
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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-The significance of any one pulp property test method, as set forth herein, should be considered 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:
ASTM TAPPI Sec- Method Method Procedure tions Reference Reference Aqueous Extract Conductivity 8-9 D 202 ... Aqueous Extract pH 10-11 D 202 ... Aqueous Extractable Acidity- 12-13 D 202 ... Alkalinity Analysis of Ash for Cations by 73-81 D 1193 and D 2576 ... Atomic Absorption Spectro- photometry Ash Content 82-85 D 202 T 413 Dirt in Pulp 42-43 ... T 213 Fiber Analysis 24-25 D 202 and D 1030 ... Fiber Length of Pulp 44-45 ... T 232, T 233 Freeness (Canadian Standard 56-57 ... T 227 Freeness) Kappa Number/Permanganate 28-29 ... T 236, Number (Substances Oxidiz- UM251 able by Permanganate) Laboratory Processing of Pulp 54-55 ... T 200 (Beater Method) Moisture in Pulp 32-34 ... T 210 Neutral Aqueous Extractable 16-23 D 202, D 1126, and ... Hardness in Pulp D 2576 Pentosan Content of Pulp 30-31 ... T 223 Resistance of Pulp to Disinte- 46-53 ... T 239, gration (Standard RPG) UM 252 Shive Count 35-41 ... ... Solvent-Soluble Matter in Pulp 26-27 D 202 ... Tensile Properties 68-72 D 202 ... Water-Extractable Chlorides 14-15 D 202 ...1.3.2 Handsheet characteristics determinable by these procedures appear in the following sections:
ASTM TAPPI Sec- Method Method Procedure tion Reference Reference Air Resistance (Porosity) 60-61 D 202 T 205 Apparent Density 66-67 D 202 T 205 Bursting Strength 62-63 D 202 and D 774 T 205 Folding Endurance (M.I.T.) 54-55 D 202 and D 2176 T 205 Forming Handsheets for Physical 58-59 ... T 205 Tests of Pulp Tensile Strength 68-69 D 202 and D 828 T 2051.4 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 and health practices and determine the applicability of regulatory limitations prior to use.
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