Filtration Equipment
This handheld field filtration apparatus is designed
for quick, reliable operation in the field. Samples can
then be easily stored to be taken to the lab. The EPA
recommends this filtration apparatus for preparing
chlorophyll and biomass subsamples for periphyton
analysis.
Reusable Filter
Holders
These reusable filter holders, receivers and funnels
are available in three useful volumes and various
configurations. They are made of durable, transparent
polysulfone and are fully autoclavable with or without
membranes in place.
Holders feature an upper chamber designed for
pressure or vacuum filtration. Independent locking rings
seal upper chamber to receiver or funnel without
damaging membrane. Chamber accommodates 47 mm membrane
and has three ports for venting and aseptic addition of
samples. Ports also can be attached to a pressure
source.
Filter holder with Graduated Receiver is particularly
useful for field work. Also accepts syringe filters and
can be connected to 1/4" to 5/16" (6.4 to 8 mm) vacuum
tubing. With polypropylene cover and TPE port caps.
Use Filter Holder and Funnel with any filtering flask
or manifold that accepts a No. 7 or No. 8 rubber stopper
with hole. With no-twist vacuum gasket for use in place
of stopper.
511-001 250
ml Chamber x 250 ml Receiver 0.4 lb.
511-002 500
ml Chamber x 500 ml Receiver 0.6 lb.
511-003 500
ml Chamber x 1000 ml Receiver 1 lb.
Hand-Held Vacuum/Pressure Pumps
Durable hand-operated vacuum pumps are ideal for
siphoning, filtration, liquid transfer, bleeding fluid
lines, and checking for leaks. Gage monitors vacuum in
centimeters and inches of mercury. Trigger release
disassembles for repair or replacement of internal
parts. Lightweight units are sealed and self-lubricating
with removable covers on exhaust port and trigger to
release vacuum without disconnecting pumps from the
line. Pumps include 2 of both 1/4" and 3/8" ID PVC
tubing, a vacuum/pressure gage. Holds vacuum of 25 in.
(635 mm) Hg. or 15 PSIG pressure.
511-010 PVC
Hand-Held Pump 1 lb.
511-011
Aluminum Hand-Held Pump 1 lb.
Whatman®
Filter Papers
- The industry standard for high-purity filtration
- Available in a variety of grades and sizes
- Packaged 100 to a box
High-purity quantitative papers are the choice for
gravimetric analysis. Hardened filters have a high
wet-strength and are chemical resistant to handle
filtration or acid/alkali solutions.
Water
pollution glass microfiber filters are made entirely of
borosilicate glass and contain no binders. The maximum
temperature 1022° F (550° C).
