ASTM D5947-01e1

e1
Designation: D 5947 – 01
Standard Test Methods for
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Physical Dimensions of Solid Plastics Specimens
This standard is issued under the fixed designation D 5947; 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 (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—Editorially corrected 9.2.7.7 in April 2002.
1. Scope 3.2.1 absolute uncertainty (of a measurement), n—the
smallest division that may be read directly on the instrument
1.1 These test methods cover determination of the physical
used for measurement.
dimensions of solid plastic specimens where the dimensions
3.2.2 calibration—the set of operations that establishes,
are used directly in determining the results of tests for various
under specified conditions, the relationship between values
properties. Use these test methods except as otherwise required
measured or indicated by an instrument or system, and the
in material specifications.
corresponding reference standard or known values derived
1.2 The values stated in SI units are to be regarded as the
from the appropriate reference standards.
standard.
3.2.3 micrometer, n—an instrument for measuring any di-
1.3 This standard does not purport to address all of the
mension within absolute uncertainty of 25 μm or smaller.
safety concerns, if any, associated with its use. It is the
3.2.4 verification—proof, with the use of calibrated stan-
responsibility of the user of this standard to establish appro-
dards or standard reference materials, that the calibrated
priate safety and health practices and determine the applica-
instrument is operating within specified requirements.
bility of regulatory limitations prior to use.
3.2.5 1 mil, n—a dimension equivalent to 25 μm (0.0010
NOTE 1—There is no similar or equivalent ISO standard.
in.).
2. Referenced Documents
4. Summary of Test Methods
2.1 ASTM Standards:
4.1 These test methods provide five different test methods
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D 618 Practice for Conditioning Plastics for Testing
for the measurement of physical dimensions of solid plastic
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D 638 Test Method for Tensile Properties of Plastics
specimens. The test methods (identified as Test Methods A
D 790 Test Methods for Flexural Properties of Unreinforced
through D, and H) use different micrometers that exert various
and Reinforced Plastics and Electrical Insulating Materi-
pressures for varying times upon specimens of different geom-
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als
etries. Tables 1 and 2 display the basic differences of each test
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D 883 Terminology Relating to Plastics
method and identify methods applicable for use on various
D 2240 Test Method for Rubber Property Durometer Hard-
plastics materials.
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ness
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D 4805 Terminology for Plastics Standards 5. Significance and Use
2.2 ISO Standard:
5.1 These test methods shall be used where precise dimen-
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ISO 472 Plastics—Vocabulary
sions are necessary for the calculation of properties expressed
in physical units. They are not intended to replace practical
3. Terminology
thickness measurements based on commercial portable tools,
3.1 Definitions—See Terminologies D 883 and D 4805, and
nor is it implied that thickness measurements made by the
ISO 472 for definitions pertinent to these test methods.
procedures will agree exactly.
3.2 Definitions of Terms Specific to This Standard:
6. Apparatus
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6.1 Apparatus A—Machinist’s Micrometer Caliper with
These test methods are under the jurisdiction of ASTM Committee D20 on
Plastics and are the direct responsibility of Subcommittee D20.10 on Mechanical Calibrated Ratchet or Friction Thimble:
Properties.
6.1.1 Apparatus A is a micrometer caliper without a locking
Current edition approved October 10, 2001. Published December 2001. Origi-
device but that is equipped with either a calibrated ratchet or a
nally published as D 5947 – 96. Last previous edition D 5947 – 96.
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friction thimble. The pressure exerted on the specimen is
Annual Book of ASTM Standards, Vol 08.01.
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Annual Book of ASTM Standards, Vol 09.01.
controllable by the use of a proper manipulative procedure and
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Annual Book of ASTM Standards, Vol 08.03.
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Available from American National Standards Institute, 25 W. 43rd St., 4th
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Floor, New York, NY 10036. Hereinafter referred to as a machinist’s micrometer.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D 5947
TABLE 1 Test Methods Suitable for Specific Materials
on the force applied to the presser foot. The limit is related to
Material Test Method the compressive characteristics of the material being measured.
Plastics specimens A, B, C, or D
6.3.2.1 The force applied to the presser foot spindle and the
A
Other elastomers H
weight necessary to move the pointer upward from the zero
A
Materials with D2240 Shore A hardnes
...