Whitehouse Scientific has responded to an increased interest in automated measurement of large particle sizes by introducing single size glass beads of greater than 1 mm in diameter. Traditionally, sieve analysis has been used for such large sizes, which are also near the upper limit of some laser diffraction methods of analysis. As image analysers now have a firm foothold in this sector, there is a requirement for NIST traceable reference calibration beads. The Monodisperse Standards have very narrow particle size distributions and come in sets of five single shot bottles, together with a NIST traceable test certificate. Application areas include pharmaceuticals, foodstuffs, polymers and speciality chemicals.

Whitehouse Scientific has extended the library of papers, articles and technical downloads available on what is now the most visited section of the company’s website. The collection includes around 40 papers and published articles authored by managing director Dr Graham Rideal, an acknowledged expert in the area of calibration standards and former chairman of the Filtration Society. These cover a range of topics in filter testing, sieve analysis and particle characterisation. All articles can be freely downloaded

POWTECH 2007 Stand Hall 8/201 Whitehouse Scientific will unveil an attractive and highly practical new look for the company’s microsphere standards at Powtech 2007 (27-29 March 07; Nűrnberg, Germany) as it introduces a new packaging design throughout its extensive product range. The presentation of the standards has been completely updated with the introduction of new, more durable plastic bottles, individually held in foam and supplied in a clear plastic display case. At the associated Partec conference Dr Graham Rideal, managing director of Whitehouse Scientific, will also present a paper on the use of Whitehouse standards for image analysis. Whitehouse Scientific has been producing glass microspheres for calibration for 24 years. The company is the highest ranking European certification laboratory for primary methods of particle size analysis and the world’s leading manufacturer of single-shot glass microsphere standards. The reference standards, nearly all of which are NIST traceable,…

Whitehouse Scientific will introduce a new filter efficiency test at Filtech 2007 (27 Feb – 1 Mar 2007; Wiesbaden, Germany). Using fine silica glass beads of 1.5, 2, 3, 4.5, 5 and 6 µm diameter, the new test enables measurement down to very fine pore sizes. The Whitehouse approach allows full NIST traceability, something that in the past has presented a challenge for users of fine pore size filters. To perform the test, standards are made into a dilute aqueous suspension which is drawn through the filter medium using a simple vacuum system. Efficiency is measured by determining the percentage of standard retained in the filter. Dr Graham Rideal, managing director of Whitehouse Scientific and former chairman of the Filtration Society, will also present a conference paper on 28 February, entitled: Challenge testing by precision glass microspheres – a new physical method of measuring pore sizes. He and other members of the Whitehouse team will be available…

After two years in the chair, Graham Rideal hands over to Lloyd Holiday After two very successful years, the mantel of the chairmanship of The Filtration Society has been passed from Graham Rideal of Whitehouse Scientific to Lloyd Holiday of Larox. During his term of office, Dr Rideal saw the biggest growth in numbers of Corporate Associates of the Society in the organisation’s 40 year history. A major factor contributing to the success of the Society has been its organisation of up to four one-day technical meetings each year, at which highly relevant and state-of-the-art information can be exchanged. The most popular series is centred around filter testing, and these meetings regularly attract international audiences from more than 10 different countries. Lloyd Holiday brings to the office a large international network of his own and highly respected organisational skills. He will continue to build on the success of recent years to grow and further develop the activities and reputation of the Filtration Society. Filtration…

One-day Filter Testing conferences are amongst the most popular events organised by the Filtration Society. They usually attract in excess of 100 delegates and around 25 exhibitors from all over Europe. This year’s event, which will be held on 3 October 2006 at the Coventry Transport museum (UK), may prove to be the most popular ever, as it revolves around ISO test methods. The conference, organised by Dr Graham Rideal, chairman of the Society and MD of Whitehouse Scientific, will discuss all the major pore size measurement methods for wet and dry filtration. The sessions will be presented by leading European experts. As well as the seven principal lectures, a poster session comprising ten short presentations and a comprehensive exhibition will ensure delegates are made fully aware of all the latest filter testing technologies. As a bonus, delegates will receive free entry to the museum where they can see vehicles ranging from the first cars ever produced…