ASTM D3480-88(1995)

Test Methods for Downward Force Required to Open or Activate Child-Resistant Snap-Engagement Packages (Withdrawn 1999)

SCOPE
1.1 These test methods cover the measurement of the downward force required to open or activate child-resistant snap-engagement packages.
1.2 This standard does not purport to address all of the safety problems, 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• Status: Withdrawn
• Publication Date: 31-Dec-1994
• Withdrawal Date: 09-Aug-1999
• Technical Committee: D10 - Packaging

Standards Content (Sample)

ASTM D3480 88 - Oi’59530 05883L5 965 -
Designation: D 3480 - 88 (Reapproved 1995)
#lb
Standard Test Methods for
Downward Force Required to Open or Activate Child-
Resistant Snap-Engagement Packages’
This standard is issued under the fixed designation D 3480; 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 (6) indicates an editorial change since the last revision or reapproval.
1. Scope suitable pressor foot, and a supporting stand with provision
for either manual or motorized operation. To ensure max-
1.1 These test methods cover the measurement of the
imum accuracy, a calibrated gage with the most appropriate
downward force required to open or activate child-resistant
range available should be used.
snap-engagement packages.
5.1.1 The pressor foot transmits the force to the proper
1.2 This standard does not purport to address all of the
location on the closure. This action should follow the closure
safety concerns, if any, associated with its use. It is the
design concept (for example, a small G-in. (13-mm) diam-
responsibility of the user of this standard to establish appro-
eter disk to simulate thumb pressure, or a narrow blade
priate safety and health practices and determine the applica-
(contact area approximately 3/64 by l/4 in. ( 1.2 by 6.4 mm)) to
bility of regulatory limitations prior to use.
simulate fingernail pressure). In some cases, a special foot
might be required.
2. Terminology
2.1 Description of Term Specific to This Standard:
6. Sampling
2.1.1 downward force to open--the amount of pressure
6.1 The sample size will depend upon the particular
applied at a constant rate to the appropriate location on the
objective of the test. The number of specimens to be used,
closure with the objective to achieve activation of the
and their actual selection, should both be consistent with
opening mechanism.
established statistical considerations.
3. Summary of Test Methods
7. Preparation of Apparatus
3.1 Either of the two following test methods can be used:
7.1 Attach the appropriate pressor foot to the force gage,
3.1.1 Test Method A-Downward pressure is applied to
and position a trial specimen on the tester stage.
the proper location on the closure, and the force required to
7.2 Carefully apply force at the proper closure location
open or activate is measured.
and observe the gage needle until opening or activation
3.1.2 Test Method B-Predetermined lower and upper
occurs. This can be detected by observation (with or without
limit force values are applied. The closures should not open
attendant sound), and a distinct interruption in the climb of
or activate below the predetermined minimum force; they
the needle.
should open or activate at or between the lower and the
7.3 Select an appropriate rate of loading by observing trial
higher predetermined values.
units. Three inches (76 mm)/min has been found generally
satisfactory. The rate should be defined as the distance
traveled per minute regardless of whether the operation is
4. Significance and Use
motorized or manual, not merely by reference to the motor
4.1 These test methods may be used in establishing and
setting number. The rate should reflect end use, but it should
confirming quality control standards.
also permit good control at the end point to avoid ovenide.
4.2 These test methods may be used to establish perfor-
mance standards.
8. Calibration
8.1 Check the calibration of the force gage by using
5. Apparatus
certified dead weights that will include the full scale range of
5.1 Testing Machine,2 consisting of a force gage with a
the gage.
9. Conditioning
’ These test methods are under the jurisdiction of ASTM Committee D-10 on
Packaging and is the direct responsibility of Subcommittee D10.31 on Child
9.1 Force values may be influenced by:
Resistant Packaging.
9.1.1 Precise method of closure application, including
Current edition approved Dec. 30, 1988. Published February 1989. Originally
published as D 3480 - 76. Last previous edition D 3480 - 8 I.
ambient conditions and nature of contents,
2 ChatilIon Universal Test Stands LTC and LTCM, with series DPP force gages
9.1.2 Length of time the closure has been in place,
of appropriate range, and standard pressor feet, available from John Chatillon and
Sons, Kew Gardens, NY 11415, have been found satisfactory for these test
methods.
Similar equipment (Series CTM Universal Testing Machines, and Series L force Included with the force gages described above are several pressor feet; the
gages) is also available from Hunter Spring, a Division of Ametek, Inc., Hatfield, flat-disk style is appropriate for simulating thumb pressure, the chisel-point for
PA. simulating fingernail pressure.
417

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