ASTM D3288/D3288M-15
(Test Method)Standard Test Methods for Magnet-Wire Enamels
Standard Test Methods for Magnet-Wire Enamels
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.
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:
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D3288/D3288M − 15
Standard Test Methods for
1
Magnet-Wire Enamels
This standard is issued under the fixed designation D3288/D3288M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D1711 Terminology Relating to Electrical Insulation
D5423 Specification for Forced-Convection Laboratory Ov-
1.1 These test methods cover testing liquid enamel coatings
ens for Evaluation of Electrical Insulation
used to produce film-insulated magnet wire.
E131 Terminology Relating to Molecular Spectroscopy
1.2 The values stated in either lbs/gal or SI units are to be
E168 Practices for General Techniques of Infrared Quanti-
3
regarded separately as standard.
tative Analysis (Withdrawn 2015)
1.3 The test methods appear as follows: E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
Sections
Density 6–10
E2975 Test Method for Calibration of Concentric Cylinder
Determined Solids 16–22
Rotational Viscometers
Effective Solids 31–37
Flash Point 11–15
Infrared Analysis 45–50
3. Terminology
Stack Loss 23–30
Viscosity 38–44 3.1 Definitions:
3.1.1 For definitions of terms used in these test methods,
1.4 There is no known IEC equivalent document.
refer to Terminology D1711.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.2 Definitions of terms specific to this standard:
responsibility of the user of this standard to establish appro-
3.2.1 For definitions of terms specific to this standard, see
priate safety and health practices and determine the applica-
the individual test methods.
bility of regulatory limitations prior to use.
4. Significance and Use
2. Referenced Documents
4.1 These tests are useful for specification and control
2
2.1 ASTM Standards:
purposes during the manufacture, purchase, and use of the
D29 Test Methods for Sampling and Testing Lac Resins
magnet-wire enamels, and for determining uniformity of
3
(Withdrawn 2005)
batches.
D56 Test Method for Flash Point by Tag Closed Cup Tester
D476 Classification for Dry Pigmentary Titanium Dioxide
5. Sampling
Products
D1298 Test Method for Density, Relative Density, or API
5.1 Take a representative sample of liquid enamel and store
Gravity of Crude Petroleum and Liquid Petroleum Prod-
for future testing. Store the sample at room temperature in a
ucts by Hydrometer Method
tightly sealed, nearly full container, unless otherwise specified.
D1475 Test Method For Density of Liquid Coatings, Inks,
Use a container that is inert and impermeable to the wire
and Related Products
enamel.Theseprecautionsavoideither theescapeofsolventor
reaction with the container and atmosphere. Glass and some
metals are suitable materials. Copper, iron, and aluminum are
1
These test methods are under the jurisdiction of ASTM Committee D09 on
unsatisfactory. After removing test specimens, use care to
Electrical and Electronic Insulating Materials and are the direct responsibility of
restore these storage conditions.
Subcommittee D09.12 on Electrical Tests.
Current edition approved Nov. 1, 2015. Published November 2015. Originally
approved in 1973. Last previous edition approved in 2008 as D3288 – 08. DOI: DENSITY
10.1520/D3288_D3288M-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6. Scope
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
6.1 This test method covers the determination of the density
the ASTM website.
3
of magnet-wire enamel in terms of specific gravity or weight
The last approved version of this historical standard is referenced on
www.astm.org. per gallon.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3288/D3288M − 15
7. Significance and Use DETERMINED SOLIDS
7.1 Density is useful for specification and control purposes
16. Scope
during the manufacture and use of magnet-wire enamel.
16.1 This test method covers the determination of a particu-
7.2 The preferred method is Procedure A, hydrometer
lar measured value for the solids content in a magnet-wire
method.
enamel.
17. Terminology
8. Procedure A—Hydrometer Method
17.1 Definitions of Terms Specific to This Test Method:
8.1 Determine the specific gravity of the magnet-wire
enamel in accordance with Test Method D1298 at 25.0 6
17.2 determined solids, of magnet-wire enamel, n—the por-
0.1°C.
tio
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3288/D3288M − 08 D3288/D3288M − 15
Standard Test Methods for
1
Magnet-Wire Enamels
This standard is issued under the fixed designation D3288/D3288M; 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 (´) indicates an editorial change since the last revision or reapproval.
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 lbs/gal or SI units are to be regarded separately as standard.
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 42 – 47
Infrared Analysis 45 – 50
Stack Loss 23 – 30
Viscosity 38 – 41
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
3
D29 Test Methods for Sampling and Testing Lac Resins (Withdrawn 2005)
D56 Test Method for Flash Point by Tag Closed Cup Tester
D476 Classification for Dry Pigmentary Titanium Dioxide Products
D1298 Test Method for Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products by
Hydrometer Method
D1475 Test Method For Density of Liquid Coatings, Inks, and Related Products
3
D1638 Methods of Testing Urethane Foam Isocyanate Raw Materials (Withdrawn 1989)
D1711 Terminology Relating to Electrical Insulation
D5423 Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation
E131 Terminology Relating to Molecular Spectroscopy
3
E168 Practices for General Techniques of Infrared Quantitative Analysis (Withdrawn 2015)
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E2975 Test Method for Calibration of Concentric Cylinder Rotational Viscometers
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in these test methods, refer to Terminology D1711.
1
These test methods are under the jurisdiction of ASTM Committee D09 on Electrical and Electronic Insulating Materials and are the direct responsibility of Subcommittee
D09.12 on Electrical Tests.
Current edition approved Jan. 1, 2008Nov. 1, 2015. Published February 2008November 2015. Originally approved in 1973. Last previous edition approved in 20032008
as D3288 – 03.D3288 – 08. DOI: 10.1520/D3288_D3288M-08.10.1520/D3288_D3288M-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3288/D3288M − 15
3.2 Definitions of terms specific to this standard:
3.2.1 For definitions of terms specific to this standard, see the individual test methods.
4. 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.
5. Sampling
5.1 Take a representative sample of liquid enamel and store for future testing. Store the sample at room temperature in a tightly
sealed, nearly full container, unless otherwise specified. Use a container that is inert and impermeable to the wire enamel. These
precautions avoid either the escape of solvent or reaction with the container and atmosphere. Glass and some metals are suitable
materials. Copper, iron, and aluminum are unsatisfactory. After removing test specimens, use care to restore these storage
conditions.
DENSITY
6. Scope
6.1 This test method covers the determination of the density of magnet-wire enamel in terms of specific gravity or weight per
gallon.
7. Significance and Use
7.1 Density is useful for specification and control purposes during the manufacture and use of magnet-wire en
...
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