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Standard Test Methods of Sampling and Testing Pulps to be Used in the Manufacture of Electrical Insulation
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Available format(s): Hardcopy, PDF
Language(s): English
Published date: 01-11-2018
Publisher: American Society for Testing and Materials
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.
1.1These 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.
1.2Sections on Reagents, Sampling, and Report are integral parts of each of the individual test methods that follow.
1.3Each 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.
1.3.1Bulk 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
Aqueous Extractable Acidity- Alkalinity
12 & 13
Analysis of Ash for Cations by Atomic Absorption Spectrophotometry
70 – 78
D1193 & D2576
Ash Content
79 – 82
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
Tensile Properties
65 – 69
Water-Extractable Chlorides
14 & 15
1.3.2Handsheet characteristics determinable by these procedures appear in the following sections:
Air Resistance (Porosity)
57 & 58
T 205
Apparent Density
63 & 64
Bursting Strength
59 & 60
D202 & D774/D774M
Folding Endurance (M.I.T.)
D202 & D2176
Forming Handsheets for Physical Tests of Pulp
55 & 56
Tensile Strength
65 & 66
D202 & D828
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.
1.4The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.5This 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.
1.6This 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.
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