m\) gas filter which filters out airborne toxic chemical agents as part of a Nuclear, Biological and Chemical \(NBC\) filtration system in the armored weapons systems.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16

MIL-PRF-14512L(EA)

ters corresponding to each adsorbent sample, a 10�gram portion of each mixed adsorbent sample

shall be tested for moisture content in accordance with 4.3.6.3. The packaged sample filters shall then

be forwarded to the Government, and seven of them subjected to rough handling in accordance with

4.3.6.4. These seven filters shall be tested by the Government in accordance with the DMMP gas life

test (4.3.6.5) and the other seven filters shall be tested in accordance with the CK value test (4.3.6.6).

Any filter failing leakage or airflow resistance requirements shall be rejected and removed from the

lot. If any sample filter from the lot fails to meet the other requirements in section 3, the first article

lot shall be rejected.

4.2.3 Acceptance criteria. If any first article sample item fails to comply with any of the

applicable requirements, the first article quantity shall be rejected. The Government reserves

the right to terminate inspection upon any failure to comply with any of the requirements. The

contractor shall obtain written approval from the contracting activity prior to proceeding with

regular production.

4.3 Conformance inspection.

4.3.1 Lotting. A lot shall consist of the filters produced by one manufacturer on one produc

tion line, from the same materials, with the same process, and without a break in production of

more than 10 calendar days. However, any one lot of filters shall contain no more than one lot

of adsorbent, and a new lot of filters shall be started whenever any adsorbent filling or final

assembly process equipment change is made. Each lot shall be identified and controlled in ac

cordance with MIL-STD-1168.

4.3.2 Sampling.

4.3.2.1 For examination. Sampling of packaged filters shall be conducted in accordance with

the classification of characteristics in 4.3.5 and, when specified, table I. Samples shall be se

lected at random.

For tests. Sample sizes for DMMP and CK gas life testing shall be as follows:

4.3.2.2

TABLE I. Sampling plan for filter gas life

DMMP and Structural

Integrity sample size

Lot size

CK sample size

30 to 150

151 to 500

501 to 5000

4.3.3 Inspection procedure.