ASTM D4733-13
Standard Test Methods for Solventless Electrical Insulating Varnishes

Standard No.
ASTM D4733-13
Release Date
2013
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM D4733-17
Latest
ASTM D4733-17
Scope

4.1 The test methods referenced in these test methods are useful for control purposes during the manufacture and use of solventless varnishes.

1.1 These test methods cover solventless varnishes used primarily as electrical, mechanical, and environmental protection for electrical equipment.

1.2 These test methods are used on solventless varnishes that are applied by dipping (at atmospheric pressure conditions or under vacuum or other certain pressure), spraying, or brushing for the purpose of impregnating or sealing electrical equipment. The following test methods are included:

Property Tests (Uncured):

Section

Density

 7

Flash Point

 8

Gel Time

 9

Monomer Content

10

Rheological Properties (Non-Newtonian)

11

Brookfield Viscosity

12

Performance Property Tests (cured):

 

Bond Strength

13

Coating Thickness

14

Dielectric Strength

15

ASTM D4733-13 Referenced Document

  • ASTM D115 Standard Test Methods for Testing Solvent Containing Varnishes Used for Electrical Insulation
  • ASTM D1475 Standard Test Method For Density of Liquid Coatings, Inks, and Related Products
  • ASTM D149 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
  • ASTM D150 Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
  • ASTM D168 Standard test method for copper content in water
  • ASTM D1711 Standard Terminology Relating to Electrical Insulation
  • ASTM D2196 Standard Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational (Brookfield type) Viscometer
  • ASTM D2519 Standard Test Method for Bond Strength of Electrical Insulating Varnishes by the Helical Coil Test
  • ASTM D3056 Standard Test Method for Gel Time of Solventless Varnishes
  • ASTM D3278 Standard Test Methods for Flash Point of Liquids by Small Scale Closed-Cup Apparatus
  • ASTM D3312 Standard Test Method for Percent Reactive Monomer in Solventless Varnishes
  • ASTM D3487 Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus
  • ASTM D3636 Standard Practice for Sampling and Judging Quality of Solid Electrical Insulating Materials
  • ASTM D374 Standard Test Methods for Thickness of Solid Electrical Insulation
  • ASTM D6054 Standard Practice for Conditioning Electrical Insulating Materials for Testing
  • ASTM D923 Standard Practices for Sampling Electrical Insulating Liquids
  • ASTM D93 Standard Test Methods for Flash-Point by Pensky-Martens Closed Cup Tester
  • ASTM E176 Standard Terminology of Fire Standards

ASTM D4733-13 history

  • 2017 ASTM D4733-17 Standard Test Methods for Solventless Electrical Insulating Varnishes
  • 2013 ASTM D4733-13 Standard Test Methods for Solventless Electrical Insulating Varnishes
  • 2003 ASTM D4733-03(2009) Standard Test Methods for Solventless Electrical Insulating Varnishes
  • 2003 ASTM D4733-03 Standard Test Methods for Solventless Electrical Insulating Varnishes
  • 1998 ASTM D4733-98 Standard Test Methods for Solventless Electrical Insulating Varnishes
Standard Test Methods for Solventless Electrical Insulating Varnishes


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