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ASTM D3470-97(2002)

(Test Method)

Standard Test Method for Measurement of Removal Lug Strippage of Type IIA Child-Resistant Closures

Standard Test Method for Measurement of Removal Lug Strippage of Type IIA Child-Resistant Closures

SCOPE
1.1 This test method covers the determination of the force required to cause a downward-force-while-turning lug-finish closure to be rotated across the container finish lugs (strippage) without downward force being applied to the closure (Type IIA closures).
1.2 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-Apr-1997
ICS
55.020 - Packaging and distribution of goods in general
Technical Committee
D10 - Packaging
Current Stage
Ref Project

Relations

Replaces
ASTM D3470-97 - Standard Test Method for Measurement of Removal Lug Strippage of Type IIA Child-Resistant Closures
Effective Date
10-Apr-1997
Replaced By
ASTM D3470-97(2007) - Standard Test Method for Measurement of Removal Lug Strippage of Type IIA Child-Resistant Closures (Withdrawn 2016)
Effective Date
01-Oct-2007

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ASTM D3470-97(2002) - Standard Test Method for Measurement of Removal Lug Strippage of Type IIA Child-Resistant ClosuresASTM D3470-97(2002) - Standard Test Method for Measurement of Removal Lug Strippage of Type IIA Child-Resistant Closures
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ASTM D3470-97(2002) - Standard Test Method for Measurement of Removal Lug Strippage of Type IIA Child-Resistant Closures
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D3470–97 (Reapproved 2002)
Standard Test Method for
Measurement of Removal Lug Strippage of Type IIA Child-
1
Resistant Closures
This standard is issued under the fixed designation D 3470; 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. Scope 4.2 Using sufficient sampling, the average strippage force
and the range are determined for a given lot of samples.Torque
1.1 This test method covers the determination of the force
measurements are in units of pound-force-inch or newton-
required to cause a downward-force-while-turning lug-finish
metre.
closure to be rotated across the container finish lugs (strippage)
without downward force being applied to the closure (Type IIA
5. Significance and Use
closures).
5.1 This test method may be used as a standard test in the
1.2 This standard does not purport to address all of the
comparison of a given size and design lug-style child-resistant
safety concerns, if any, associated with its use. It is the
closure to manufacturer specifications, and in the comparison
responsibility of the user of this standard to establish appro-
of similar closures of differing materials for determining
priate safety and health practices and determine the applica-
strippage.
bility of regulatory limitations prior to use.
5.2 This test method may be used as a standard test to
2. Referenced Documents evaluate the continued effectiveness of the closure for child
2
resistance and adult opening and reclosing throughout the
2.1 ASTM Standards:
expected use and shelf life of the package.
D 3474 Practice for The Calibration and Use of Torque
Meters Used in Packaging Applications
6. Apparatus
D 3475 Classification of Child-Resistant Packages
3,4
6.1 Torque-Measuring Device, having a measurement
3. Terminology range consistent with the torque values to be measured, that
will securely hold the capped container.
3.1 Definitions:
6.2 Gripping Device (Optional), that will effectively grip
3.1.1 type IIA child-resistant closure—a lug finish closure
the closure perpendicular to the vertical axis of the container
requiring a random push down while turning. (See Classifica-
without the use of vertical or radial forces, and that will not
tion D 3475.)
contact any portion of the container (Fig. 1).
3.2 Definitions of Terms Specific to This Standard:
3.2.1 strippage torque—the moment of force which is
7. Sampling
required to produce rotation of the closure over the container
7.1 Randomly select sufficient samples to ensure reproduc-
lugs while exerting no downward force.
ibility of results from the lot being inspected.
4. Summary of Test Method
8. Test Specimens
4.1 This test method consists of securing a capped container
8.1 Examine closure samples and containers, to be vehicles
(after suitable preconditioning) in a torque-measuring device
for this test, to determine compliance with the manufacturer’s
and rotating the closure, using mechanical or nonmechanical
dimensional and material specifications.
aid, to determine the torque needed to rotate the closure across
8.2 Prepare test specimens by assembling the closure to the
the container lugs. No downward force is applied.
appropriate container by pressing downward and turning the
closure so as to reduce or eliminate initial closure lug wear.
1
This test method is under the jurisdiction of ASTM Committee D10 on
Packaging and is the direct responsibility of Subcommittee D10.31 on Child
Resistant Packaging.
3
Current edition approved April 10, 1997. Published June 1997. Originally Owens-Illinois torque meter, or its equivalent, has been found satisfactory for
published as D 3470 – 76. Last previous edition D 3470 – 89. this test method. Owens-Illinois torque testers are available from Secure-Pak, Inc.,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 4009 Beechway Blvd., Toledo, OH 43614.
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM A digital or automated torque instrument, if used, will have an appropriate
Standards volume information, refer to the standard’s Document Summary page on design and scale capacity for the container/closure system to be evaluated. Torque
the ASTM website. results will be available in either electronic display or printout formats.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D3470–97 (2002)
FIG. 1 Supported Cap Gripping Aid for Removal Strippage Determination
9. Calibration 11.2 Finger-Grip Technique:
11.2.1 Apply a firm grip to the closur
...

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