MIL --- PRF --- 51525B
3.4.2.3 Vibration. After sinusoidal vibration between 4 and 50 Hz, the gas filter shall pass
the DMMP gas life requirement (3.3.4).
3.4.2.4 Rough handling. After rough handling, consisting of two hundred 3/4 --- inch drops
per minute for 15 minutes, 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.
3.4.3 Fungus. The materials of construction, except for ASZM --- TEDA carbon, shall not
support fungus and mildew growth beyond trace levels.
3.4.4 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.
3.5 Ownership and support requirements.
3.5.1 Shelf life. Filter 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.
3.5.2 Moisture content. Prior to packaging the filter in a sealed container, the moisture con-
tent of the carbon shall not exceed 3.0 percent by weight to enhance shelf life.
3.5.3 Safety, health, environment.
3.5.3.1 Materials. The materials of construction shall be non --- toxic, non --- hazardous, and
non --- carcinogenic. They shall not be capable of having any adverse effects on human health
during normal use. If special use conditions create a health hazard potential, the equipment
shall have appropriate hazard warning labels in accordance with 29 CFR 1910.1200.
3.5.3.2 Particulate emissions. The filter shall pose no potential inhalation hazard to the
user, and whose normal use will not exceed the lower of (a) 8 --- hour time weighted average
Threshold Limit Values (TLVs) published by the American Conference of Governmental In-
dustrial Hygienists (ACGIH), or (b) 8 --- hour time weighted average Permissible Exposure Lim-
its (PELs) regulated by Occupational Safety and Health Administration (OSHA) and found in
Material Safety Data Sheets (MSDS) (see 6.7).
3.5.3.3 Odors. When air is forced through the filter at 200 scfm, it shall not emit an irritating
level of particulate emissions or obnoxious odors.
3.5.3.4 Hazardous waste. At the time of disposal, uncontaminated filters (including any
coatings) shall not be a Resource Conservation Recovery Act hazardous waste according to
characteristics cited in 40 CFR 261.21 --- 261.24 and shall not be listed as specific hazardous
waste chemicals in 40 CFR 261.33(e) and (f).
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