ASTM F2251-03e1

Standard Test Method for Thickness Measurement of Flexible Packaging Material

SIGNIFICANCE AND USE
This test method provides a means for measuring a thickness dimension. Accurate measurement of thickness can be critical to meeting specifications and characterizing process, product, and material performance.
This test method does not address acceptability criteria. These need to be jointly determined by the user and producer of the product. Repeatability and reproducibility of measurement is shown in the Precision and Bias section. Attention should be given to the inherent variability of materials being measured as this can affect measurement outcome.
SCOPE
1.1 This test method covers the measurement of thickness of flexible packaging materials using contact micrometers.
1.2 The Precision and Bias statement for this test method was developed using both handheld and bench top micrometers with foot sizes ranging from 4.8 to 15.9 mm (3/16 to 5/8 in.).
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 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-Jun-2003
• ICS: 55.040 - Packaging materials and accessories
• Technical Committee: F02 - Primary Barrier Packaging
• Drafting Committee: F02.20 - Physical Properties

Relations

• Replaces: ASTM F2251-03 - Standard Test Method for Thickness Measurement of Flexible Packaging Material
• Effective Date: 10-Jun-2003
• Replaced By: ASTM F2251-03(2008) - Standard Test Method for Thickness Measurement of Flexible Packaging Material
• Effective Date: 01-Apr-2008
• Referred By: ASTM F1306-21 - Standard Test Method for Slow Rate Penetration Resistance of Flexible Barrier Films and Laminates
• Effective Date: 10-Jun-2003
• Referred By: ASTM F99-21 - Standard Guide for Writing a Specification for Flexible Barrier Rollstock Materials
• Effective Date: 10-Jun-2003
• Referred By: ASTM F2097-20 - Standard Guide for Design and Evaluation of Primary Flexible Packaging for Medical Products
• Effective Date: 10-Jun-2003
• Referred By: ASTM F3300-23 - Standard Test Method for Abrasion Resistance of Flexible Packaging Films Using a Reciprocating Weighted Stylus
• Effective Date: 10-Jun-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e1
Designation:F2251–03
Standard Test Method for
1
Thickness Measurement of Flexible Packaging Material
This standard is issued under the fixed designation F 2251; 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.
1
e NOTE—Reference to a Research Report was added in March 2004.
1. Scope 3.1.1 bench micrometer—tabletop measurement system us-
ing a dead weight or spring.
1.1 Thistestmethodcoversthemeasurementofthicknessof
3.1.2 foot—the moving component of the micrometer that
flexible packaging materials using contact micrometers.
comes in contact with the sample.
1.2 The Precision and Bias statement for this test method
wasdevelopedusingbothhandheldandbenchtopmicrometers
4. Significance and Use
3 5
with foot sizes ranging from 4.8 to 15.9 mm ( ⁄16 to ⁄8 in.).
4.1 This test method provides a means for measuring a
1.3 This standard does not purport to address all of the
thickness dimension. Accurate measurement of thickness can
safety concerns, if any, associated with its use. It is the
be critical to meeting specifications and characterizing process,
responsibility of the user of this standard to establish appro-
product, and material performance.
priate safety and health practices and determine the applica-
4.2 This test method does not address acceptability criteria.
bility of regulatory limitations prior to use.
These need to be jointly determined by the user and producer
2. Referenced Documents of the product. Repeatability and reproducibility of measure-
2
ment is shown in the Precision and Bias section. Attention
2.1 ASTM Standards:
should be given to the inherent variability of materials being
D 374 Test Methods for Thickness of Solid Electrical Insu-
measured as this can affect measurement outcome.
lation
3
D 1898 Practice for Sampling of Plastics
5. Apparatus
D 4332 Practice for Conditioning Containers, Packages, or
5.1 Mechanical gage, suitable for measuring thickness:
Packaging Components for Testing
5.1.1 Thethicknessgagemaybeeitherabenchorhand-held
D 5947 Test Methods for Physical Dimensions of Solid
mechanical model.
Plastics Specimens
5.1.2 Thegageshouldbecapableofaccuratelymeasuringin
E 691 Practice for Conducting an Interlaboratory Study to
increments of 2.5 µm (0.0001 in.).
Determine the Precision of a Test Method
4 5.1.3 The foot size and foot pressure should be known and
2.2 ANSI/ASQ Standards:
identified. Because of the compressibility of different materials
ANSI/ASQC Z1.4 Sampling Procedures and Tables for
it is important when comparing results between different
Inspection by Attributes
laboratories that the size of the foot and pressure be the same.
ANSI/ASQC Z1.9 Sampling Procedures and Tables for
5.1.4 It is recommended that a calibration be performed on
Inspection by Variables
the apparatus used and certified to a recognized industry
3. Terminology standard such as National Institute of Standards and Technol-
ogy (NIST).
3.1 Definitions:
NOTE 1—Test Methods D 5947 and D 374 give guidance on methods
for checking calibration and parallelism.
1
This test method is under the jurisdiction ofASTM Committee F02 on Flexible
Barrier Materials and is the direct responsibility of Subcommittee F02.20 on
6. Sampling
Physical Properties.
6.1 The number of samples tested should be adequate to be
Current edition approved June 10, 2003. Published August 2003.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
predictive of performance. Caution should be taken when
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
eliminating samples with defects as this can bias results.
Standards volume information, refer to the standard’s Document Summary page on
6.2 See Practice D 1898 or ANSI/ASQC Z1.4 or Z1.9, or
the ASTM website.
3
Withdrawn. both, for guidance on sampling plans and practices.
4
Available fromAmerican National Standards Instititute (ANSI) 25 W. 43rd St.,
4th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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e1
F2251–03
7. Conditioning ent pieces of equipment were used to collect information.
Equipment used and foot sizes are listed in Table 1. Measure-
7.1 Conditioning of the samples will depend on the material
ments taken included use of micrometers in 0.0001 in. divi-
under evaluation. If conditioning before testing is appropriate,
sions. Statistical summaries of repeatability (within a labora-
normal, and desirable, then condition the test specimens at 23
tory) and reproducibility (between la
...