Krystal Klear liquid bag housing

Krystil Klear Filtration has introduced its new low pres- sure, low cost, 100 psi housing to be used in most all-liquid filtration applications where a high quality, low cost filter is to be used.

The US Company says the new vessel can aid the effective removal of dirt, pipe scale and other contami- nants from process liquids such as water, chemical and petroleum products - at temperatures up to 93.3% (200°F) and flow rates of 220 gpm.

Specifications include a 3-Bolt swing lid for a safe and easy access to the housing - no messy and cumbersome snap band to deal with. Ports for gauges, vents and drains are included for proper service to the housing. O-ring seals are machined into the lid casting and basket casting that will not fall off when the lid is swung open. Carbon Steel housings are 2-part epoxy finished for maximum vessel life.

Krystil Klear Filtration, 9449 S. 550 W, Winamac, IN. 46996, USA.Tel:+12192787161;Fax:+12192787115. E-mail: kkfilterQpwrtc.com.

GC column for MTBE analysis

A high-resolution capillary GC column is now available for the positive identification of the fuel additive Methyl- tert-butyl Ether (MTBE) in environmental samples.

Developed by J&W Scientific the DB-MTBE GC column is designed specifi- cally for chemists to suc- cessfully resolve MTBE from the common pollutants 2- and 3- methylpentane. Identification of MTBE from these two pollutants is a serious problem when high

concentrations of gasoline are present in a sample.

The manufacturer says the column is effective for EPA Method 8020 utilising a photoionization detector (PID) and a flame ionisation detector (FID). The GC col- umn is available in 30 m lengths, with two inner diameters of 0.45 mm and 0.53 mm.

J&W Scientific, 91 Blue Ravine Road, Folsom, CA 95630, USA. Tel: +1 916 985 7888

Syringe filter for viscous solvents

Whatman International has developed a new range of syringe filters for difficult or viscous laboratory samples.

The GD/XP syringe fil- ters are based on Whatman’s popular GDiX range, and are similar in that a pigment free 25mm polypropylene housing con- tains two filtration layers: a pre-filtration stack and the filtering membrane itself.

However, Whatman says on the new filters, the first layer is a unique pre-fil- tration stack of polypropy- lene pre-filters, which means they are ideal for samples requiring inorganic analysis. This stack retains larger particles and avoids the build-up of backpres-

sure, so frequently experi- enced with dirty samples. Whatman also claims diffi- cult solvent samples can now be filtered with less hand force than with other syringe devices.

The last stage of filtra- tion is through a mem- brane. Customers can choose from five different filtration media - nylon, PVDF, PTFE, polypropy- lene, polyethersulphone or a special depth polypropy- lene - all in 0.45um pore size.

Whatman International Ltd, Whatman House, St Leonard Road, 20/20 Maidstone, Kent ME16 OLS, UK. Tel: +44 1622 676670; Fax: +44 1622 677011.