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Polycap GW 75, 0.45 µm, PES Specifically designed with field sampling in mind, the Whatman Polycap Ground Water sampling capsule can be used as a convenient inline filter unit. Connects directly to outlet of a sampling pump. Easy to use. Filtration membrane is encapsulated in durable polypropylene housing. Also available in 5.0 µm filters, as required by US and regional EPA test methods. Large surface area optimized to provide at least 600 cm˛ of effective filtration area to ensure rapid sample collection. Housing components thermally fused (no glues, adhesives, metals, epoxies, or extraneous materials). Suitable for filtration procedure outlined in EPA Method 3005 for ground water analysis. Stepped hose barb fittings allow for connection with various size tubings. Lot number printed on each unit for traceability The US Environmental Protection Agency (EPA) and local Departments for Environmental Protection protocols specify filtering ground water samples with a 0.45 µm filter when analyzing dissolved or suspended metals (EPA Method 3005).

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