MIL --- PRF --- 51527B
3.4.3.4 Rough handling.
a. After rough handling, consisting of two hundred 3/4- inch drops per minute for 15 min-
utes, the gas filter show no evidence of cracks or dents, and shall pass airflow resistance (3.3.1)
and DMMP life (3.3.4) requirements.
b. After rough handling, consisting of two hundred 3/4- inch drops per minute for 15 min-
utes, the particulate filter shall show no evidence of cracks or dents, and shall pass airflow resist-
ance (3.3.1) and filtration efficiency (3.3.6) requirements.
3.4.4 Fungus. The materials of construction, except for ASZM --- TEDA carbon, shall not
support fungus and mildew growth beyond trace levels.
3.4.5 Corrosion. Any construction material shall resist salt fog corrosion to an extent equal
or greater than anodized aluminum when the aluminum alloy number is in the 3000 to 5000
series of ASTM B 209.
3.4.5.1 Coating. {If the material used for the gas filter's housing is metal, its inside surface
shall have a coating which prevents galvanic corrosion between the metal housing and the metal
impregnants (including any metallic oxides and chlorides) of the carbon sorbent. Coating shall
have these characteristics: peel --- resistant, electrically insulating, and non --- degrading at the
temperature and humidity limits in this specification.}
3.4.6 High humidity. After conditioning at 80% relative humidity or above and 113 _F for
7 days, the particulate filter shall pass airflow resistance (3.3.1) and filtration efficiency (3.3.6)
requirements.
3.4.7 Dust capacity. The particulate filter shall deliver the rated airflow at a resistance of no
greater than 5.7 inch of water when uniformly loaded with 2 kilograms (4.4 pounds) of dust per
Class A2 of ISO 12103 --- 1.
3.4.8 Overpressure. The particulate filter shall satisfy the minimum efficiency requirement
of 3.3.6 after being subjected to a repeated overpressure that is produced by an airflow of 400
scfm.
3.4.9 Flammability. The particulate filter, when clean, shall not produce flame, sparks or
smoke in quantities greater than that allowed for a Class 2 air filter unit per UL 900.
3.5 Ownership and support requirements. These requirements apply to both the gas and
particulate filters in the set except for 3.5.2.
3.5.1 Shelf life. Filter set shelf life shall be at least 5 years (extendable) (see 6.8). Shelf life
is the maximum time an item may be in sheltered storage within its packaging and still remain
fit for use.
9
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business