UFC 3-280-04
17 DEC 2003
Max Permissible
Temperature (Water)
degrees C
Material
Resistance
(degrees F)
Constant
Short Term
60
80
Polypropylene (PP)
Resistant to water solutions
(140)
(175)
of acids, alkalis, and salts,
as well as to large number
of organic solvents.
Unsuitable for concentrated
oxidizing acids.
90
110
Polyvinylidene (PVDF)
Resistant to acids, solutions
(195)
(130)
of salts, aliphatic, aromatic
and chlorinated
hydrocarbons, alcohols,
and halogens.
Conditionally suitable for
ketones, esters, ethers,
organic bases, and alkaline
solutions.
Polytetrafluroethylene
Resistant to all chemicals
140
150
(PTFE)
listed in the chart.
(285)
(300)
90
120
Nitrite Rubber
Good resistance to oil and
(195)
(250)
(Buna-N)
gasoline.
Unsuitable for oxidizing
agents.
90
120
Good resistance to ozone
Butyl Rubber
(195)
(250)
and weather.
Ethylene Propylene
Especially suitable for
Rubber
aggressive chemicals.
(EPDM, EPR)
Unsuitable for oils and fats.
80
110
Chloroprene Rubber
Chemical resistance very
(175)
(230)
(Neoprene)
similar to that of PVC and
between that of Nitrite and
Butyl rubber.
150
200
Fluorine Rubber
The best chemical
(300)
(390)
(Viton)
resistance to solvents of all
elastomers.
D-3
NUMBER OF FILTERS REQUIRED. Vendor A cartridge manufacturer
recommends using 10 L/min. (2.5 gpm) per 250 mm (10 in.) cartridge filter length. The
Vendor bulletin indicates that a 250 mm (10 in.) cartridge length has 0.5 m2 (5.4 ft2) of
filter media. Similarly, the 500 mm (20 in.), 750 mm (30 in.) and 1000 mm (40 in.)
cartridges have areas equal to 1.0 m2 (10.8 ft2), 1.5 m2 (16 ft2) and 2.0 m2 (21.5 ft2),
respectively.
D-2
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