Extended sieve calibration standards on show at Analytica 2008 as Whitehouse Scientific celebrates 25th year in business

3 Mar 2008
Greg Smith
Analyst / Analytical Chemist

Product news

The latest additions to the Whitehouse Scientific range of sieve calibration standards will be shown on the company’s stand at this year’s Analytica (1-4 April 08, Munich, Germany). The size range covered has been further extended, increasing the maximum size from the previous 3.35 mm diameter to 10 mm.

2008 is also a special year for Whitehouse Scientific as the company celebrates its silver anniversary, having now produced and certified glass microspheres for 25 years. In that time the company has become established as the leading laboratory for glass reference standards and has produced more than one million single-shot bottles.

Whitehouse Scientific has also developed a new method of pore size analysis in filter media, measuring sizes from 5-1000 microns. Where filter efficiencies are required, maximum pore sizes down to 3 microns can be determined.

All the standards, whether used for size calibration or pore size determination are NIST traceable. Visit Stand No: A1/357 to discuss your particle analysis or filtration calibration needs.

Links

Tags

FiltrationFiltration and microfiltration are used to separate solids, particulates or large molecules from fluids (liquid or gases) in order to purify the filtrate. Explore a range of filter formats, including filter paper, plates and membranes for your separation needs. While larger particulates may be separated by gravity filtration, smaller particulates may require additional force for timely separation. Microfiltration equipment includes vacuum filters, as well as positive pressure, crossflow and centrifugal filtration devices. Find the best filtration products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.
Extended sieve calibration standards on show at Analytica 2008 as Whitehouse Scientific celebrates 25th year in business