Whatman Polydisc Ground Water Filter 50 mm, nylon with quartz fiber prefilter, 0.45 µm, 20/pk
Hydrophilic, durable nylon membrane is compatible with aqueous samples
100% quartz fiber prefilter with low heavy metal content allows filtration of larger volumes of even heavily particleladen samples
Certified low background metal values for heavy metal testing
Large 20.4 cm² filtration area
Tubing nozzle compatible with 6–14 mm i.d. hose
Whatman Polydisc GW (Ground Water) inline filter is specifically designed for preparation of ground water samples for dissolved metals analysis.
Polydisc GW for ground water sampling
Polydisc GW’s large filter surface, durable nylon Whatman membrane, and quartz fiber prefilter result in high dirtloading capacity. The filter was designed in line with regulatory requirements for groundwater testing found in US EPA Method 3005A.
Certified for heavy metal analysis
Heavy metal testing in ground water often requires an aqueous filter to reduce a sample’s turbidity, but results can be skewed if the filter itself contains heavy metals. Cytiva certifies each Polydisc GW batch for low background values for the determination of trace elements