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.

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MIL-PRF-14512L(EA)

3. REQUIREMENTS

3.1 Materials and components.

3.1.1 Materials. The filter shall be constructed so that it conforms to the requirements of this

specification. The contractor shall select materials, which pose no potential inhalation hazard to the

user in excess of the limits as recommended by the American Conference of Governmental Industrial

Hygienists (ACGIH publication). Unused or uncontaminated filters and packaging materials at the

time of disposal shall not be a Resource Conservation Recovery Act (RCRA) hazardous waste as de-

fined in 40 CFR 261.21�261.24 or 40 CFR 261.33 (e) and (f).

3.1.2 Adsorbent media. The adsorbent media shall fully meet the requirements of EA�

DTL�1704 when ASZM�TEDA carbon is used, or the adsorbent media shall meet the hardness re-

quirement of EA�DTL�1704 and performance requirements in 3.5.7 of this specification if

ASZM�TEDA carbon is not used. In any case, the adsorbent shall be chromium free and pose no

health hazards or potential environmental problems. For adsorbent other than ASZM�TEDA carbon,

the lotting shall be equivalent to those requirements found in EA�DTL�1704.

3.2 First article. When specified (see 6.2), a sample shall be subjected to the first article

inspection in accordance with 4.2.

3.3 Physical characteristics.

3.3.1 Filter body. The filter body shall be of a design strong enough to withstand all tests

delineated in this specification without any visible damage and/or degradation.

3.3.2 Filter weight. The weight of the complete unpackaged filter shall not exceed 1.6 kilo

grams.

3.4 Interface.

3.4.1 Filter size. The external dimensions of the filter shall be form and fit equivalent to

those in Drawing 5-19-2295.

3.4.2 Interfacing surfaces. The interfacing inlet and outlet surfaces of the filter shall be equiva-

lent to those in Drawing 5�19�2295. The filter inlet shall contain a flat edge and the filter outlet shall

contain a protruding edge per Drawing 5�19�2295.

3.5 Performance characteristics.

3.5.1 Air flow resistance. The air flow resistance of the filter shall not exceed 122 millime

ters (mm) of water at a 340 standard liters per minute with an air stream temperature of 21�C

and a barometric pressure of 760 mm Hg.