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934-AH™ RTU
Glass Microfiber Filters
The filter you trust most just got better.
Whatman 934-AH, the most widely used filter for Total Suspended Solids Analysis, is now available in a time-saving, Ready-To-Use (RTU) format.
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The 934-AH RTU contains the trusted binder-free, high purity borosilicate glass microfiber filter mentioned in Standard Methods. Now it comes pre-washed and pre-weighed. This eliminates filter pre-treating and streamlines your laboratory process. Each RTU filter is packaged within an aluminum pan with the filter weight clearly printed on a heat resistant label.
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| Features and Benefits |
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- Fast and convenient: Use the pre-washed, pre-weighed filter immediately – no need to pre-treat.
- Efficient: Superior fine particle retention at high flow rates.
- High loading capacity: Capable of processing very turbid samples.
- High temperature tolerant: Can be used with temperatures up to 550°C.
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| Applications |
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The 934-AH RTU meets the requirements under the latest edition of Standard Methods 2540D for determining total suspended solids in water. It is used for a wide range of water monitoring applications including:
- Monitoring of rivers, lakes and coastal waters
- Purified discharge of wastewater treatment plants
- Monitoring discharge water from industrial plants
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| Ready-To-Use (RTU) Work Flow |
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Each pre-treated filter comes in an aluminum pan, with the filter weight clearly noted.
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First, place the 934-AH RTU on the funnel of the vacuum filtration apparatus and seal the filter to the funnel by wetting with a small amount of water. Then, filter your sample* and finally, wash the filter with three aliquots of 10 ml reagent grade water.
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Remove the filter, return it to the aluminum weigh pan and dry it to constant weight at 103°C to 105°C. To obtain the weight of total suspended solids, subtract the weight of the filter indicated on the pan label from the final weight.
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* Sample volume should be chosen to yield between 2.5 mg and 200 mg of dried residue. See Standard Methods 2540D for details.
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| Click here to view 934-AH RTU Product Video |
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