MIL-PRF-61002B
4 . VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified
as follows:
a. First article inspection (see 3.2 and 4.1.2).
b. Conformance inspection (see 4.1.3).
4.1.1 Inspection conditions. Unless otherwise specified, all inspections shall be performed in
accordance with the test conditions specified in 3.15.2.
4.1.2 First article inspection. First article inspection shall be performed on samples from
each lot of labels. The inspection shall include judging all of the performance parameters itemized in
3.15.2 before and after performing the pertinent label grade tests as delineated in 3.15.1 (also see
6.2).
4.1.3 Conformance inspection. Conformance inspection consists of tests for all of the
requirements specified in section 3 as specified in the contract or purchase order (see 6.2).
4.2 Performance tests. The labels, upon completion of each performance test, shall be
examined to meet or exceed compliance with this specification.
4.2.1 Abrasion resistance.
4.2.1.1 Apparatus. The apparatus shall consist of a GA-CAT Comprehensive
Abrasion Tester as described in ASTM D 5181, or an equivalent (for example, Taber Tester).
4.2.1.2 Standard conditions. Standard conditions shall be a temperature of 73.5
degrees F, +/- 2 degrees F and a relative humidity at that temperature of 50 +/- 4 percent.
4.2.1.3 Preparation of test labels. Prior to testing, the test label and specimen mounting
sheets shall be conditioned for a minimum of 24 hours in an atmosphere maintained at standard
conditions (see 4.2.1.2).
4.2.1.4 Method. Test labels shall be tested to meet or exceed the following test criteria as
described in ASTM D 5181: Place two labels on a piece of back-up bond paper, equally spaced
across the paper with the bar code in the direction of abrasion using a 600 grit receptor. Mount both
the sample and receptor using the adhesive backed foam. The GA-CAT Abrasion Tester shall be set
to the following parameters: cycle - 30 seconds, frequency - 2 Hz, span - 1.5 inches, offset - .13
inches, side pressure 10 pounds, and top pressure - 50 pounds.
NOTE: The initial cycle may require reduced pressure settings when a new receptor is used (side
pressure - 7 pounds, top pressure 45 pounds). Run one cycle at a time to initiate abrasion resistance
of the bar code label. Four individual cycles shall be run during each test to determine bar code
acceptance. A cool off period of 1 minute or more is required between cycles. Acceptance to
conformance will be readability of the bar code label after four cycles.
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