Standard Test Methods for Measurement of Torque Retention for Child Resistant and Non-Child Resistant Packages with Continuous Thread Closures Using Automated Torque Testing Equipment

SIGNIFICANCE AND USE
5.1 This test method allows for the measurement of the torque retention properties of container/continuous thread closure systems of various designs, materials, and manufacture, and is suitable for package development and engineering evaluation.  
5.2 Each test method can be used for the evaluation of non child resistant container/continuous thread closure systems under controlled conditions such as when the application torque is known and the applied downward force to the closure is zero or for Type I, style “A” push down and turn child resistant container/continuous thread closure systems under controlled conditions such as when the application torque and the applied downward force to the closure is known.  
5.3 This test method measures torque retention properties of container/continuous thread closure systems with the use of an automated transducer based torque meter operating at a known rotational velocity (rpm) or known torque ramp.  
5.4 This test method is intended for measurement of dry torque only.
SCOPE
1.1 These test methods evaluate the torque retention of continuous thread closures on containers with matching finishes, for predetermined environmental conditions over time. Methods are defined for both Type I, style “A” push down and turn Type II2 child resistant and non child resistant type closures.  
1.2 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.
Note 1: The SI unit system is the recommended system.  
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
30-Sep-2014
Current Stage
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ASTM D7860-14 - Standard Test Methods for Measurement of Torque Retention for Child Resistant and Non-Child Resistant Packages with Continuous Thread Closures Using Automated Torque Testing Equipment
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D7860 − 14
Standard Test Methods for
Measurement of Torque Retention for Child Resistant and
Non-Child Resistant Packages with Continuous Thread
1
Closures Using Automated Torque Testing Equipment
This standard is issued under the fixed designation D7860; 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 D3475 Classification of Child-Resistant Packages
D4169 Practice for Performance Testing of Shipping Con-
1.1 These test methods evaluate the torque retention of
tainers and Systems
continuous thread closures on containers with matching
D4332 Practice for Conditioning Containers, Packages, or
finishes, for predetermined environmental conditions over
Packaging Components for Testing
time. Methods are defined for both Type I, style “A” push
2 D7386 Practice for Performance Testing of Packages for
down and turn Type II child resistant and non child resistant
Single Parcel Delivery Systems
type closures.
E691 Practice for Conducting an Interlaboratory Study to
1.2 The values stated in either SI units or inch-pound units
Determine the Precision of a Test Method
are to be regarded separately as standard. The values stated in
3. Terminology
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
3.1 Definitions:
values from the two systems may result in non-conformance
3.1.1 For definitions of general packaging and distribution
with the standard.
terms, see Terminology D996.
NOTE 1—The SI unit system is the recommended system.
3.1.2 For definitions of application torque and removal
1.3 This standard does not purport to address all of the
torque, see Test Method D3198.
safety concerns, if any, associated with its use. It is the
3.1.3 For Definitions regarding conditioning, see Terminol-
responsibility of the user of this standard to establish appro-
ogy E41.
priate safety and health practices and determine the applica-
3.2 Definitions of Terms Specific to This Standard:
bility of regulatory limitations prior to use.
3.2.1 dry torque—drytorqueisdefinedasapplyingtorquein
the absence of lubricant (i.e. product from the container or
2. Referenced Documents
filling operation) on the threads.
3
2.1 ASTM Standards:
3.2.2 immediate removal torque—removal torque that is
D996 Terminology of Packaging and Distribution Environ- measured at a stated interval, from 1 to 5 min after closure
ments
application.
D3198 Test Method forApplication and Removal Torque of
3.2.3 torque retention—a comparison between removal
4
Threaded or Lug-Style Closures (Withdrawn 2016)
torque at the end of a test period and a predetermined
D3474 Practice for Calibration and Use of Torque Meters
immediate removal torque.
Used in Packaging Applications
4. Summary of Test Methods
4.1 Test Method A: Static Evaluation—At predetermined
1
These test methods are under the jurisdiction of ASTM Committee F02 on
timeintervals,theremovaltorquesofrepresentativesamplesof
Flexible Barrier Packaging and is the direct responsibility of Subcommittee F02.25
a container/continuous thread closure system, previously
on Rigid Container Closure Systems.
stored at various environmental conditions, are measured.
Current edition approved Oct. 1, 2014. Published November 2014. DOI:
10.1520/D7860-14.
4.2 Test Method B: Dynamic Evaluation—Practices D4169
2
For classification of child resistant styles, see ASTM D3475 Standard Classi-
and D7386 are used to develop a uniform system of evaluating
fication of Child-Resistant Closures.
3
the ability of primary packages, in the shipping units, to
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
withstand the distribution environment. At the end of prede-
Standards volume information, refer to the standard’s Document Summary page on
termined distribution cycles, the removal torques of represen-
the ASTM website.
4
tative samples of a container/continuous thread closure system
The last approved version of this historical standard is referenced on
www.astm.org. are measured.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D7860 − 14
5. Significance and Use torque of a calibrated force meter with a torque calibration
verification device (calibrated “standard”) five times before
5.1 This test method allows for the measurement of the
testing begins. Record results.
torque retention properties of container/continuous thread clo-
sure systems of various
...

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