ASTM D3288/D3288M-20 - 1.8.2020
 
Significance and Use

4.1 These tests are useful for specification and control purposes during the manufacture, purchase, and use of the magnet-wire enamels, and for determining uniformity of batches.

 
1. Scope

1.1 These test methods cover testing liquid enamel coatings used to produce film-insulated magnet wire.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined

1.3 The test methods appear as follows:

 

Sections

Density

6 – 10

Determined Solids

16 – 22

Effective Solids

31 – 37

Flash Point

11 – 15

Infrared Analysis

45 – 50

Stack Loss

23 – 30

Viscosity

38 – 44

1.4 There is no known IEC equivalent document.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This 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.

 
2. Referenced Documents

D1298-12b(2017)e1

Standard Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method (Includes all amendments and changes 3/14/2023).

D476-15(2021)

Standard Classification for Dry Pigmentary Titanium Dioxide Products

D56-22

Standard Test Method for Flash Point by Tag Closed Cup Tester

D29-98

Standard Test Methods for Sampling and Testing Lac Resins (Withdrawn 2005)

D1475-13(2020)

Standard Test Method for Density of Liquid Coatings, Inks, and Related Products

E131-10(2023)

Standard Terminology Relating to Molecular Spectroscopy

D5423-23

Standard Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation

D1711-24

Standard Terminology Relating to Electrical Insulation

E2975-23

Standard Test Method for Calibration or Calibration Verification of Concentric Cylinder Rotational Viscometers

E168-16(2023)

Standard Practices for General Techniques of Infrared Quantitative Analysis

E691-23

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method