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ASTM D3472-97(2007)

(Test Method)

Standard Test Method for Reverse-Ratchet Torque of Type IA Child-Resistant Closures (Withdrawn 2016)

Standard Test Method for Reverse-Ratchet Torque of Type IA Child-Resistant Closures (Withdrawn 2016)

SIGNIFICANCE AND USE
These torque measurements are of value because the reverse-ratchet torque is a torque applied to the closure in the removal direction of the closure. For Type IA closures, it is essential that this torque be significantly lower than some defined level at which the closure might unscrew.
This test may be used to establish performance specification for this attribute.
SCOPE
1.1 This test method covers the measurement of the torque developed when Type IA child-resistant closures are rotated in the counter-clockwise direction. Type IA closures are reclosable continuous threaded closures that use a random push down while turning; no orientation of the push down force is necessary.
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.
WITHDRAWN RATIONALE
This test method covered the measurement of the torque developed when Type IA child-resistant closures are rotated in the counter-clockwise direction. Type IA closures are reclosable continuous threaded closures that use a random push down while turning; no orientation of the push down force is necessary.
Formerly under the jurisdiction of Committee D10 on Packaging, this test method was withdrawn in January 2016 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

Status
Withdrawn
Publication Date
30-Sep-2007
Withdrawal Date
13-Jan-2016
ICS
55.020 - Packaging and distribution of goods in general
Technical Committee
D10 - Packaging
Current Stage
Ref Project

Relations

Replaces
ASTM D3472-97(2002) - Standard Test Method for Reverse-Ratchet Torque of Type IA Child-Resistant Closures
Effective Date
01-Oct-2007

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ASTM D3472-97(2007) - Standard Test Method for Reverse-Ratchet Torque of Type IA Child-Resistant Closures (Withdrawn 2016)ASTM D3472-97(2007) - Standard Test Method for Reverse-Ratchet Torque of Type IA Child-Resistant Closures (Withdrawn 2016)
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ASTM D3472-97(2007) - Standard Test Method for Reverse-Ratchet Torque of Type IA Child-Resistant Closures (Withdrawn 2016)
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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: D3472 − 97(Reapproved 2007)
Standard Test Method for
Reverse-Ratchet Torque of Type IA Child-Resistant
Closures
This standard is issued under the fixed designation D3472; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Test Method
1.1 This test method covers the measurement of the torque
4.1 Representative specimens of child-resistant threaded
developed when Type IAchild-resistant closures are rotated in
closures are applied to an appropriate container. A torque-
the counter-clockwise direction. Type IA closures are reclos-
measuring device is used to measure the amount of torque
ablecontinuousthreadedclosuresthatusearandompushdown
developed when the closure is rotated in the counter-clockwise
while turning; no orientation of the push down force is
direction without any vertical force applied. This is reverse-
necessary.
ratchet torque.
1.2 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.1 These torque measurements are of value because the
priate safety and health practices and determine the applica-
reverse-ratchet torque is a torque applied to the closure in the
bility of regulatory limitations prior to use.
removal direction of the closure. For Type IA closures, it is
essential that this torque be significantly lower than some
2. Referenced Documents
defined level at which the closure might unscrew.
2.1 ASTM Standards:
5.2 This test may be used to establish performance specifi-
D3198Test Method forApplication and Removal Torque of
cation for this attribute.
Threaded or Lug-Style Closures
D3474Practice for Calibration and Use of Torque Meters
6. Apparatus
Used in Packaging Applications
6.1 Torque Tester, (See Note 1.) The model used is deter-
D3475Classification of Child-Resistant Packages
mined by the anticipated range of torques to be measured.
D3810Test Method for Minimum Application Torque of
Reverse-ratchettorquesusuallyfallbelow10lbf·in.(1.1N·m).
Type IA Child-Resistant Closures
Anappropriatetorquetesterrangefrom0to25lbf·in.(0to2.8
E105Practice for Probability Sampling of Materials
N·m) or 0 to 10 lbf·in. (0 to 1.1 N·m) is suggested.
E122PracticeforCalculatingSampleSizetoEstimate,With
Specified Precision, the Average for a Characteristic of a
NOTE1—Adigitalorautomatedtorqueinstrument,ifused,willhavean
Lot or Process
appropriate design and scale capacity for the container/closure system to
be evaluated. Torque results will be available in either electronic display
or printout format.
3. Terminology
3.1 Definition (see Classification D3475).
7. Sampling
3.1.1 Type IA child-resistant closure—a two-piece continu-
ous thread closure requiring a random push down while 7.1 The number of samples will depend on the purpose for
turning; no orientation of the push down force is necessary.
which this test is being run. For a given set of samples,
sufficient measurements should be taken in accordance with
established statistical sampling procedures.
This test method is under the jurisdiction of ASTM Committee D10 on
7.2 Refer to Practices E105 and E122 for more specific
Packaging and is the direct responsibility of Subcommittee D10.32 on Consumer,
Pharmaceutical and Medical Packaging. information on statistically valid procedures.
Current edition approved Oct. 1, 2007. Published October 2007. Originally
approved in 1976. Last previous edition approved in 2002 as D3472–97 (2002).
8. Test Specimens
DOI: 10.1520/D3472-97R07.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8.1 Unused threaded closures complete with liner, if
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
applicable,andcontainerswiththepropercorrespondingfinish
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. should be used.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D3472 − 97 (2007)
8.2 Ifappropriatecareistakentoavoidbuild-upoflubricant 11.1.1 Apply the closure with the recommended application
or coating from liner facings, the same container may be used torque in accordance with Test Methods D3810 and D31
...

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