ASTM F2251-13(2018)

Standard Test Method for Thickness Measurement of Flexible Packaging Material

SIGNIFICANCE AND USE
4.1 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.  
4.2 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 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 31-Aug-2018
• ICS: 55.040 - Packaging materials and accessories
• Technical Committee: F02 - Primary Barrier Packaging
• Drafting Committee: F02.20 - Physical Properties

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: F2251 − 13 (Reapproved 2018)
Standard Test Method for
1
Thickness Measurement of Flexible Packaging Material
This standard is issued under the fixed designation F2251; 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 E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.1 This test method covers the measurement of thickness of
3
flexible packaging materials using contact micrometers. 2.2 ANSI/ASQ Standards:
ANSI/ASQC Z1.4 Sampling Procedures and Tables for In-
1.2 The Precision and Bias statement for this test method
spection by Attributes
was developed using both handheld and bench top micrometers
ANSI/ASQC Z1.9 Sampling Procedures and Tables for In-
3 5
with foot sizes ranging from 4.8 to 15.9 mm ( ⁄16 to ⁄8 in.).
spection by Variables
1.3 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
3. Terminology
each system may not be exact equivalents; therefore, each
3.1 Definitions:
system shall be used independently of the other. Combining
3.1.1 bench micrometer—tabletop measurement system us-
values from the two systems may result in non-conformance
ing a dead weight or spring.
with the standard.
3.1.2 foot—the moving component of the micrometer that
1.4 This standard does not purport to address all of the
comes in contact with the sample.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Significance and Use
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4.1 This test method provides a means for measuring a
1.5 This international standard was developed in accor-
thickness dimension. Accurate measurement of thickness can
dance with internationally recognized principles on standard-
be critical to meeting specifications and characterizing process,
ization established in the Decision on Principles for the product, and material performance.
Development of International Standards, Guides and Recom-
4.2 This test method does not address acceptability criteria.
mendations issued by the World Trade Organization Technical
These need to be jointly determined by the user and producer
Barriers to Trade (TBT) Committee.
of the product. Repeatability and reproducibility of measure-
ment is shown in the Precision and Bias section. Attention
2. Referenced Documents
should be given to the inherent variability of materials being
2
2.1 ASTM Standards:
measured as this can affect measurement outcome.
D374/D374M Test Methods for Thickness of Solid Electri-
cal Insulation
5. Apparatus
D5947 Test Methods for Physical Dimensions of Solid
5.1 Mechanical gage, suitable for measuring thickness:
Plastics Specimens
5.1.1 The thickness gage may be either a bench or hand-held
D6988 Guide for Determination of Thickness of Plastic Film
mechanical model.
Test Specimens
5.1.2 The gage should be capable of accurately measuring in
E171/E171M Practice for Conditioning and Testing Flexible
increments of 2.5 µm (0.0001 in.).
Barrier Packaging
5.1.3 The foot size and foot pressure should be known and
1
identified. Because of the compressibility of different materials
This test method is under the jurisdiction of ASTM Committee F02 on Primary
Barrier Packaging and is the direct responsibility of Subcommittee F02.20 on
it is important when comparing results between different
Physical Properties.
laboratories that the size of the foot and pressure be the same.
Current edition approved Sept. 1, 2018. Published November 2018. Originally
Refer to Guide D6988 for further guidance on foot pressures.
approved in 2003. Last previous edition approved in 2013 as F2251 – 13. DOI:
10.1520/F2251-13R18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Instititute (ANSI) 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F2251 − 13 (2018)
5.1.4 It is recommended that a calibration be performed on 10. Precision and Bias
4
the apparatus used and certified to a recognized industry
10.1 Precision—A research report describes a round robin
standard such as National In
...

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: F2251 − 13 F2251 − 13 (Reapproved 2018)
Standard Test Method for
1
Thickness Measurement of Flexible Packaging Material
This standard is issued under the fixed designation F2251; 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 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
3 5
foot sizes ranging from 4.8 to 15.9 mm ( ⁄16 to ⁄8 in.).
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D374D374/D374M Test Methods for Thickness of Solid Electrical Insulation (Metric) D0374_D0374M
D5947 Test Methods for Physical Dimensions of Solid Plastics Specimens
D6988 Guide for Determination of Thickness of Plastic Film Test Specimens
E171E171/E171M Practice for Conditioning and Testing Flexible Barrier Packaging
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3
2.2 ANSI/ASQ Standards:
ANSI/ASQC Z1.4 Sampling Procedures and Tables for Inspection by Attributes
ANSI/ASQC Z1.9 Sampling Procedures and Tables for Inspection by Variables
3. Terminology
3.1 Definitions:
3.1.1 bench micrometer—tabletop measurement system using a dead weight or spring.
3.1.2 foot—the moving component of the micrometer that comes in contact with the sample.
4. Significance and Use
4.1 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.
4.2 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.
1
This test method is under the jurisdiction of ASTM Committee F02 on FlexiblePrimary Barrier Packaging and is the direct responsibility of Subcommittee F02.20 on
Physical Properties.
Current edition approved Aug. 1, 2013Sept. 1, 2018. Published October 2013November 2018. Originally approved in 2003. Last previous edition approved in 20082013
as F2251 – 03F2251 – 13. (Reapproved 2008). DOI: 10.1520/F2251-13.10.1520/F2251-13R18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American 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
1

---------------------- Page: 1 ----------------------
F2251 − 13 (2018)
5. Apparatus
5.1 Mechanical gage, suitable for measuring thickness:
5.1.1 The thickness gage may be either a bench or hand-held mechanical model.
5.1.2 The gage should be capable of accurately measuring in increments of 2.5 μm (0.0001 in.).
5.1.3 The foot size and foot pressure should be known and identified. Because of the compressibility of different materials it
is important when
...