MIL‐DTL‐2522F
4.2.3.1 Examination for weight. Any sample unit (tube) with net weight less than the minimum or
greater than the maximum specified in 3.6 shall be classified as a defective unit. In addition, if the
average weight of a sample of tubes is less than 1 pound, the lot shall be rejected.
4.2.3.2 Examination for winding. Defects with regard to winding shall be considered to exist if any of
the following are determined during inspection:
(a) Improperly or not firmly wound resulting in kinking, knotting, entangling, or slippage during
unwinding or otherwise affecting free unhampered unwinding of cord.
(b) Put-up not as specified.
(c) Any tube found to contain more than three pieces.
(d) Any piece less than 50 feet in length (except when there are only two pieces per tube).
(e) Any knot or splice.
4.2.4 Testing of the end item. The methods of testing specified in FED-STD-191, wherever applicable
and as listed in table IV shall be followed. When the data in the "Number of determinations" and "Results
reported as" columns are not specified in the table, they shall be as required by the referenced test
method. The physical and chemical values specified in section 3 apply to the average of the
determinations made on a sample unit for test purposes as specified in the applicable test methods. The
sample size shall be in accordance with table III. The sample unit for testing shall be one tube of cord.
The lot size shall be expressed in units of tubes. All test reports shall contain the individual values utilized
in expressing the final result. The lot shall be unacceptable if one or more units fail to meet any
requirement. Tests to determine compliance with specification requirements, including quantity of
delivery, may be made under prevailing atmospheric conditions. In cases of dispute, tests shall be made
upon material which has reached equilibrium under Standard Conditions as defined in FED-STD-191.
TABLE III. Sampling for tests.
Lot size (tubes)
Sample size
800 or less
2
801 up to and including 22,000
3
22,001 and over
5
TABLE IV. Test methods.
Characteristic
Requirement Test method
No. of
Results reported
paragraph
determinations per
as
sample unit
Material
3.2
1200 1/
-
-
(strands and core)
Construction
3.4
Visual
1
Pass or fail
Number of carriers
3.5
Visual
1
Whole number
Number of core yarns
3.5
Visual
1
Pass or fail
Picks per inch
3.5
6001
-
-
Ply of yarns:
3.5
Visual
1
Pass or fail
Breaking strength
3.5
6015
5
-
Length per pound
3.5
6004 2/
2
-
Diameter
3.5
6002
3
Avg. of 3 deter. to
nearest 1/64 inch
Chloroform soluble
3.5.1
2611
material (wax content)
1/ A contractor's certificate of compliance will be accepted for this requirement.
2/ Except that the test specimen shall be a minimum of 30 yards of cord.
4
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