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ASTM International, 11/01/2018
Publisher: ASTM
File Format: PDF
$36.00$72.00
Published:01/11/2018
Pages:17
File Size:1 file , 230 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
1.1 This guide describes methods of testing and specifications for electrical insulating liquids intended for use in electrical cables, transformers, liquid circuit breakers, and other electrical apparatus where the liquids are used as insulating, or heat transfer media, or both.
1.2 The purpose of this guide is to outline the applicability of the available test methods. Where more than one is available for measuring a given property, their relative advantages are described, along with an indication of laboratory convenience, precision, (95 % confidence limits), and applicability to specific types of electrical insulating oils.
1.3 This guide is classified into the following categories: Sampling Practices, Physical Tests, Electrical Tests, Chemical Tests, and Specifications. Within each test category, the test methods are listed alphabetically by property measured. A list of standards follows:
Category
Section
ASTM Standard
Sampling:
3
D923
Physical Tests:
Aniline Point
4
D611
Coefficient of Thermal Ex- pansion
5
D1903
Color
6
D1500
Examination: Visual Infrared
7
D1524, D2144, D2129
Flash and Fire Point
8
D92
Interfacial Tension
9
D971, D2285
Pour Point of Petroleum Products
10
D97, D5949, D5950
Particle Count in Mineral Insulating Oil
11
D6786
Refractive Index and Specific Optical Dispersion
12
D1218, D1807
Relative Density (Specific Gravity)
13
D287, D1217, D1298, D1481, D4052
Specific Heat
14
D2766
Thermal Conductivity
15
D2717
Turbidity
16
D6181
Viscosity
17
D445, D2161
Electrical Tests:
Dielectric Breakdown Voltage
18
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