ASTM F219-96(2009)
(Test Method)Standard Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps
Standard Test Methods of Testing Fine Round and Flat Wire for Electron Devices and Lamps
ABSTRACT
These test methods cover the testing of fine wire, flat or round, approximately 0.010 in. (0.25 mm) and smaller in diameter or thickness, used in electronic devices and lamps. Chemical analysis of the material shall be made in accordance with the requirements prescribed. The procedures in determining the out-of-roundness, edgewise curvature of ribbon, and straightness of straightened round wire are presented in details. Tension test and electrical resistivity test shall be performed to meet the requirements prescribed.
SCOPE
1.1 These test methods cover the testing of fine wire, flat or round, approximately 0.010 in. (0.25 mm) and smaller in diameter or thickness, used in electronic devices and lamps.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F219 − 96(Reapproved 2009)
Standard Test Methods of Testing
Fine Round and Flat Wire for Electron Devices and Lamps
ThisstandardisissuedunderthefixeddesignationF219;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope ted. These specimens shall be selected sufficiently far from
eitherendofthespoolofwiretobefreefromkinks,bends,and
1.1 These test methods cover the testing of fine wire, flat or
distortion.Withtheexceptionsmentionedin3.2,thespecimens
round, approximately 0.010 in. (0.25 mm) and smaller in
shallbetakenfrompointsinthelengthofthewireseparatedby
diameter or thickness, used in electronic devices and lamps.
at least 1 ft (305 mm).
1.2 The values stated in inch-pound units are to be regarded
3.2 For the edgewise curvature test, straightness test, and
as standard. The values given in parentheses are mathematical
tension tests the specimens shall be taken from points in the
conversions to SI units that are provided for information only
length of the wire separated by at least 3 ft (0.9 m).
and are not considered standard.
1.3 This standard does not purport to address all of the
4. Chemical Analysis
safety concerns, if any, associated with its use. It is the
4.1 Incaseofdisagreementbetweenproducerandconsumer
responsibility of whoever uses this standard to consult and
chemical analysis of the material shall be made in accordance
establish appropriate safety and health practices and deter-
with the methods of the American Society for Testing and
mine the applicability of regulatory limitations prior to use.
Materials for the respective materials when such methods of
analysis are available. When ASTM test methods are not
2. Referenced Documents
available, the analytical procedures shall be agreed upon by the
2.1 ASTM Standards:
producer and the consumer.
B63 Test Method for Resistivity of Metallically Conducting
Resistance and Contact Materials
5. Dimensions
D374 Test Methods for Thickness of Solid Electrical Insu-
5.1 Procedure A for Round Wire—Determine the weight-
lation
size of round wire in accordance with Test Method F205.
F16 Test Methods for Measuring Diameter or Thickness of
Wire and Ribbon for Electronic Devices and Lamps
5.2 ProcedureBforRoundWire—As an alternative method,
F205 Test Method for Measuring Diameter of Fine Wire by
the diameter of wire over 0.005 in. (0.13 mm) may be
Weighing
determined in accordance with Test Methods D374.
F289 Specification for Molybdenum Wire and Rod for
5.3 Procedure for Flat Wire:
Electronic Applications
5.3.1 Determine the dimensions of flat wire in accordance
with 5.1 in conjunction with width as measured in accordance
3. Test Specimens
with 5.2, or if agreed upon by the manufacturer and the
3.1 The number of spools per shipment to be checked shall
purchaser, any dimension exceeding 0.005 in. may be deter-
be agreed upon by the producer and consumer. Three test
mined in accordance with 5.2 alone.
specimens from each spool to be tested shall be taken for the
5.3.2 In determining the width of flat wire, form a flatwise
purpose of each of the tests covered by these methods, except
loop loosely with the ends held between the fingers.The minor
Section 4, where one specimen per shipment shall be submit- 1 3
axis of the loop shall be ⁄2 to ⁄4 of the diameter of the
micrometer jaws. Measure the width of the ribbon with the
curve loop perpendicular to the micrometer jaws.Take care not
These test methods are under the jurisdiction of ASTM Committee F01 on
to distort the ribbon or bend it out of the correct plane during
Electronics and are the direct responsibility of Subcommittee F01.03 on Metallic
measurement.
Materials.
CurrenteditionapprovedMay1,2009.PublishedJuly2009.Originallyapproved
5.4 In case of disagreement between producer and
in 1947. Last previous edition approved in 2002 as F219 – 96 (2002). DOI:
consumer, Test Methods F16 shall be used as the referee
10.1520/F0219-96R09.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or method.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.5 Report—The report shall include the average weight of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. wire or ribbon in mg/200 mm to three significant figures. The
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F219 − 96 (2009)
average measurements for diameter, width, or thickness shall capacity of the testing machine shall be such that all specimens
be reported to the nearest 0.0001 in. (0.002 mm). fail at greater than 40 percent of the capacity of the machine.
The clamps used shall be such that there will be no slipping of,
6. Out-of-Roundness
or damage to, the test specimen.
6.1 Procedure—Measure out-of-roundness on round wire
9.2 Procedure—Determine the tensile strength, yield
over 0.005 in. (0.13 mm) in diameter in accordance with
strength, and elongation at room temperature. The gage length
Sections 3 and 4 of Test Methods D374. For wire 0.005 in. or
of the specimen shall be 10 in. (254 mm). The initial load
less in diameter the same method shall apply except a bench
applied to the specimen before making the test shall be
type micrometer reading to 0.0001 in. (0.002 mm) shall be
sufficient to keep the wire straight.The rate of traverse shall be
used. Make the measurements by exploring a plane of cross
1 in./min (25.4 mm/min).The yield strength shall be defined as
section of the test specimen to determine both minimum and
the stress at which the specimen exhibits an elongation of 1 %.
maximum values of diameter at the cross section. Take care to
If the specimen breaks within 0.5 in. (12.7 mm) of the clamps,
have the specimen straight so that its normal cur
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.