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Filtration
USGS Sandstrom Organic-Compound
Plate Filter Assembly
This is a USGS specified filtration equipment set up
for filtering water-sediment samples for determination
of organic compounds. The assembly uses fluorocarbon (TEF)
containers and tubing with a ceramic-piston filtration
vacuum pump with aluminum plate filter assembly and 142
mm, 0.7 µm glass microfiber filter.
Description of Equipment
- Container for unfiltered sample. Clean,
laboratory-grade glass bottles with fluorocarbon
polymer-FEP-lined lids.
- Fluorocarbon polymer-FEP tubing, 6.35-mm outside
diameter.
- Union, 6.35-mm tube
- Fluorocarbon polymer-FEP convoluted tubing,
6.35-mm outside diameter.
- Tube fitting, 6.35-mm diameter tube to 6.35-mm
diameter pipe thread.
- Pump, ceramic-piston, valveless, with 12-volt
direct current motor, capable of pumping from 0 to 500
mL/min
- Battery, 12-volt gelcell 7 AH
- Tube fitting, 6.35-mm diameter tube to 9.53-mm
diameter pipe thread
- In-line plate-filter assembly, aluminum (or
stainless steel), 142-mm diameter
- Glass-microfiber filter media, binder-free, 142-mm
diameter, 0.7µm nominal pore size, GF/F grade
- Bottle for filtered samples,amber borosilicate
glass, 1 L with fluorocarbon polymer FEP-lined cap
- Fluorocarbon polymer-FEP squeeze wash) bottle for
organic-grade blank water
- Stainless-steel forceps for handling the filters
511-235 USGS Sandstrom
Organic-Compound Plate Filter Assembly
22 lbs.
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