ASTM D3288-03

Standard Test Methods for Magnet-Wire Enamels

SIGNIFICANCE AND USE
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.
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 lbs/gal or SI units are to be regarded separately as standard.
1.3 The test methods appear as follows: SectionsDensity5-9 Determined Solids15-21Effective Solids30-3Flash Point10-14Infrared Analysis41-46Stack Loss22-29Viscosity37-40
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.

General Information

• Status: Historical
• Publication Date: 09-Apr-2003
• ICS: 25.220.50 - Enamels
• Technical Committee: D09 - Electrical and Electronic Insulating Materials

Relations

• Replaces: ASTM D3288-97 - Standard Test Methods for Magnet-Wire Enamels
• Effective Date: 10-Apr-2003
• Replaced By: ASTM D3288/D3288M-08 - Standard Test Methods for Magnet-Wire Enamels
• Effective Date: 01-Jan-2008
• Referred By: ASTM D996-23 - Standard Terminology of Packaging and Distribution Environments
• Effective Date: 10-Apr-2003
• Referred By: ASTM D1711-22 - Standard Terminology Relating to Electrical Insulation
• Effective Date: 10-Apr-2003
• Referred By: ASTM D2832-92(2016) - Standard Guide for Determining Volatile and Nonvolatile Content of Paint and Related Coatings
• Effective Date: 10-Apr-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation:D3288–03
Standard Test Methods for
1
Magnet-Wire Enamels
This standard is issued under the fixed designation D 3288; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (ϵ) indicates an editorial change since the last revision or reapproval.
8
1. Scope E 131 Terminology Relating to Molecular Spectroscopy
E 168 Practices for General Techniques of Infrared Quanti-
1.1 These test methods cover testing liquid enamel coatings
8
tative Analysis
used to produce film-insulated magnet wire.
E 691 Practice for Conducting an Interlaboratory Study to
1.2 The values stated in either lbs/gal or SI units are to be
9
Determine the Precision of a Test Method
regarded separately as standard.
1.3 The test methods appear as follows:
3. Significance and Use
Sections
3.1 These tests are useful for specification and control
Density 5-9
Determined Solids 15-21
purposes during the manufacture, purchase, and use of the
Effective Solids 30-36
magnet-wire enamels, and for determining uniformity of
Flash Point 10-14
batches.
Infrared Analysis 41-46
Stack Loss 22-29
Viscosity 37-40
4. Sampling
1.4 This standard does not purport to address all of the 4.1 Take a representative sample of liquid enamel and store
safety concerns, if any, associated with its use. It is the for future testing. Store the sample at room temperature in a
responsibility of the user of this standard to establish appro- tightly sealed, nearly full container, unless otherwise specified.
priate safety and health practices and determine the applica- Use a container that is inert and impermeable to the wire
bility of regulatory limitations prior to use. enamel.These precautions avoid either the escape of solvent or
reaction with the container and atmosphere. Glass and some
2. Referenced Documents
metals are suitable materials. Copper, iron, and aluminum are
2.1 ASTM Standards:
unsatisfactory. After removing test specimens, use care to
2
D29 Test Methods for Sampling and Testing Lac Resins restore these storage conditions.
,
3 4
D56 Test Method for Flash Point by Tag Closed Tester
2 DENSITY
D 476 Specification for Titanium Dioxide Pigments
D 1298 Practice for Density, Relative Density (Specific
5. Scope
Gravity), or API Gravity of Crude Petroleum and Liquid
3 5.1 This test method covers the determination of the density
Petroleum Products by Hydrometer Method
of magnet-wire enamel in terms of specific gravity or weight
D 1475 Test Method for Density of Paint, Varnish, Lacquer,
5 per gallon.
and Related Products
D 1638 Methods ofTesting Urethane Foam Isocyanate Raw
6. Significance and Use
6
Materials
6.1 Density is useful for specification and control purposes
D 5423 Specification for Forced-Convection Laboratory
7 during the manufacture and use of magnet-wire enamel.
Ovens for Evaluation of Electrical Insulation
6.2 The preferred method is Procedure A, hydrometer
method.
1
These test methods are under the jurisdiction of ASTM Committee D09 on
7. Procedure A—Hydrometer Method
Electrical and Electronic Insulating Materials and are the direct responsibility of
Subcommittee D09.10 on Magnet Wire Insulation.
7.1 Determine the specific gravity of the magnet-wire
Current edition approved Apr. 10, 2003. Published June 2003. Originally
enamel in accordance with Test Method D 1298D 1298 at
approved in 1973. Last previous edition approved in 1997 as D 3288-97.
2
Annual Book of ASTM Standards, Vol 06.03. 25.06 0.1°C.
3
Annual Book of ASTM Standards, Vol 05.01.
4
Annual Book of ASTM Standards, Vol 04.09.
5
Annual Book of ASTM Standards, Vol 06.01.
6 8
Discontinued; see 1990 Annual Book of ASTM Standards, Vol 06.03. Annual Book of ASTM Standards, Vol 14.01.
7 9
Annual Book of ASTM Standards, Vol 10.02. Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D3288–03
7.2 If weight per gallon is required, multiply the specific 17.2 The determined solids is also useful for control pur-
gravity by the weight per gallon of distilled water at the same poses during the manufacture and use of magnet-wire enamel
temperature (8.31 lb/gal at 25.0°C). and in determining uniformity of batches.
17.3 The Effective Solids Procedure (see 34.1 and 35.1)
8. Procedure B—Weight per Gallon Method
requires the Determined Solids value as an input.
8.1 Determine the weight per gallon of the magnet-wire
18. Appara
...