FF-S-2738A
4.5.2 Sampling for tests. Seals shall be randomly selected from the lot submitted for acceptance
in accordance with ANSI Z1.4.
4.5.3 Tests. The seals selected in accordance with 4.5.1.2 shall be subjected to the tests specified
in 4.6.3.
4.6 Inspection conditions. Unless otherwise specified, all inspections shall be performed in
accordance with the test conditions and procedures specified herein.
4.6.1 Classification of defects. The seals selected as specified shall be examined for compliance
with the requirements of this specification.
4.6.2 Test conditions. Except as otherwise specified herein, tests shall be conducted at prevailing
ambient temperatures and humidity in the test facility.
WARNING
THESE TESTS MAY BE HAZARDOUS TO YOUR HEALTH AND/OR CAUSE
SERIOUS INJURY. PROPER SAFETY PRECAUTIONS SHOULD BE TAKEN.
THE UNITED STATES GOVERNMENT NEITHER ASSUMES NOR ACCEPTS
RESPONSIBILITY FOR ANY INJURY OR DAMAGE TO NON-GOVERNMENT
PERSONNEL OR PROPERTY THAT MAY OCCUR DURING OR AS THE RESULT OF
ANY TEST REQUIRED BY THIS SPECIFICATION.
4.6.3 Test procedures.
4.6.3.1 Performance of Physical Properties. Tests for the relative performance and classification
of the physical properties of security seals shall be conducted in accordance with ASTM F 1157.
The extreme temperature tests, paragraph 6.5.1 of ASTM F 1157, shall be modified as follows:
4.6.3.1.1 During the extreme temperature tests, paragraph 6.5.1 of ASTM F 1157, allow at least
two (2) hours for the test chamber to reach equilibrium. Once equilibrium has been attained,
continue the high temperature exposure for four (4) hours and the low temperature exposure for a
minimum of eight (8) hours. Then continue the pull and impact tests as directed in paragraph
6.5.1 of ASTM F 1157.
4.6.3.2 Surreptitious neutralization test. The seal(s) shall be manually locked, or closed, or
applied (by crimping, twisting, bending, inserting, etc.) as intended by design. After locking,
subject the seal(s) to be tested to a non-destructive attack in an attempt to defeat, compromise, or
remove, and reapply the seal by any surreptitious action, tampering, manipulation, or any other
method without leaving evidence of the attack.
4.6.3.2.1 Test Fixtures. Test fixtures for surreptitious neutralization shall depict a real life
scenario with seals mounted on a container hasp or similar device.
4.7 Preparation for inspection. The seal(s) shall be manually locked, or closed, or applied (by
crimping, twisting, bending, inserting, etc.) as intended by design. After locking, subject the
seal(s) to be tested to a non-destructive attack in an attempt to defeat, compromise, or remove,
and reapply the seal by any surreptitious action, tampering, manipulation, or any other method
without leaving evidence of the attack. After this function, continue with the inspection. The
seal(s) shall perform and resist the attacks of section 3 for the minimum period specified. When
specified in the contract, a certificate of compliance (see 6.2), approved by the contracting officer,
may be accepted as evidence that the seal has passed the required tests. The certificate shall be
from a laboratory approved by the U.S. Government. Tests shall be conducted as outlined in the
referenced documents and as specified herein.
4.7.1 Style A and D seals. Inspect and evaluate as specified in ASTM F 1158 for group 1 seals.
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