ASTM D115 - 14

    Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation

    Active Standard ASTM D115 | Developed by Subcommittee: D09.01

    Book of Standards Volume: 10.01


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    Significance and Use

    4.1 Control—The following tests are useful for control purposes during the manufacture and use of varnishes, and for determining the uniformity of batches:

    4.1.1 Specific gravity,

    4.1.2 Viscosity,

    4.1.3 Flash point, and

    4.1.4 Nonvolatile matter by weight.

    4.2 Performance—The following tests are useful for determining the performance of varnishes during application and use:

    4.2.1 Drainage,

    4.2.2 Time of drying,

    4.2.3 Build,

    4.2.4 Dielectric strength,

    4.2.5 Thermal endurance,

    4.2.6 Varnish compatibility,

    4.2.7 Salt water proofness, and

    4.2.8 Oil resistance.

    1. Scope

    1.1 These test methods cover tests for solvent containing varnishes primarily intended to provide electrical, mechanical, and chemical protection for electrical equipment. These test methods include tests for control and performance as follows:

    Procedure

    Section

    Build

    38 – 42

    Dielectric Strength

    43 – 48

    Drainage

    26 – 32

    Flash Point

    18 – 20

    Nonvolatile Matter

    21 – 25

    Oil Resistance

    54 – 56

    Preparation of Test Specimens

        7

    Specific Gravity

    9 – 12

    Temperature Index

    4950

    Time of Drying

    33 – 37

    Varnish Compatibility

    51 – 53

    Viscosity

    13 – 17

    1.2 Where the entire test method is included in this standard, the precision and bias are not known unless given in the stated method.

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

    1.4 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. For specific hazard statements, see Section 5.

    Note 1: There is no equivalent IEC standard.


    ICS Code

    ICS Number Code 29.035.60 (Varnished fabrics)

    UNSPSC Code

    UNSPSC Code 31211707(Varnishes)


    Referencing This Standard

    DOI: 10.1520/D0115-14

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D115-14, Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation, ASTM International, West Conshohocken, PA, 2014, www.astm.org

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