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  In-Line Disposable Filters

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Waterra FHT-45 certified in-line disposable filters are easy to use with bailers and most sampling pumps. They are primarily used for for field filtration of water samples being collected for inorganic and dissolved metals analysis.

The unique open pleat geometry and 600 square cm surface area provide the maximum media exposure while ensuring that even with the most turbid samples, you will not lose filtration media to blinding.

High quality polyethersulphone 0.45 micron filter media form the core of the filter. These offer excellent particle retention above the target micron size range. The high void volume of this media also helps prolong media life.

Theses filters offer the user greater flexibility over other products by providing a compound inlet. It has both a 3/8" threaded adaptor and a 1/2" hose barb allowing the filter to be attached easily to a variety of pumps and tubing sizes.

Metals Sampling
Most laboratory analytical methods for dissolved metals analysis in groundwaters require that the sample must be pre-filtered through a 0.45 micron pore size filter. This removes any suspended particulate matter that may contain or carry metals which could subsequently add to the metals load during acidisation of the sample to preserve metals in the water sample prior to analysis.

Filtration combined with acidisation of groundwater is best carried out at the time of sampling. This ensures that during the time it takes to deliver a sample to the laboratory any suspended solids collected with the sample do not dissolve and add to the natural dissolved metals concentration. Conversely, it also avoids loss by precipitation of some dissolved metals which can occur when groundwater is sampled from acidic environments.

Waterra in-line filters allow the filtration process to be carried out simply and quickly in the field so that samples can be immediately acidised and dissolved metals content reliably established.

Certification
All Waterra Inline Disposable Micron Filters are pre-rinsed with one litre of de-ionized water to ensure purity, and are independently certified to rinse clean for dissolved metals sampling. One in every 100 filters is pre-rinsed with 250ml of de-ionised water which is then independently analysed for a wide range of metals. Certificates are supplied with every box of 100 filters and can be supplied on request for smaller order quantities - see pdf data sheet.

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Download as PDF

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FHT-45 In-Line Filters

	Code Description
FHT-45 FHT-45 Disposable In-Line Cartridge Filter (with built-in tapered tubing coupling)

Bailer Connection Tubing

S410/SC16F silicon tubing enables simple and easy connection between disposable bailers and the FHT-45 In-Line Filter.

	Code Description
S410/SC16F Silicon Tubing - 5/8" x 3/8" (15.9 x 9.5mm). Peroxide cured (FG)