Laboratory Products 63 Extreme Droplet Sizing


ADA Technologies recently confirmed that both NASA’s new space-bound fire extinguisher and the Spraytec laser diffraction spray particle size analyser from Malvern Instruments function in zero gravity just as well as they do on Earth. By carrying out droplet size distribution experiments on the infamous ‘vomit comet’, Zero Gravity Corporation aircraft, ADA and NASA researchers have shown that water atomisation is independent of gravity and the Fine Water Mist portable fire extinguisher (PFE) currently under development for use on the International Space Station (ISS) will put out fires in space safely and cleanly.


“Malvern’s Spraytec is designed to make droplet size distribution testing as easy as possible, and was the ideal solution for testing ADA’s new PFE under microgravity conditions,” said project leader, ADA’s Thierry Carriere. “The laser diffraction measurement system is automatically triggered when the first particles or droplets in an airborne plume are detected. This means the entire experimental setup could be automated and protected from floating scientists as the NASA aircraft flew through more than 40 parabolic trajectories delivering variable gravity levels between 0G (space) and 1.8G. In fact, the Spraytec proved to be so robust that no instrument realignments were required.”


To reduce ISS crew exposure to carbon dioxide (CO2) toxicity during fire response and post-fire cleanup, NASA funded


ADA Technologies to develop a non-CO2-based PFE. To carry out this project, Carriere teamed up with Andrew Brewer, Jim Butz, and Norm Haberkorn from ADA Technologies, Angel Abbud-Madrid and Cameron Emerson from the Colorado School of Mines Centre for Space Resources, and Amber Abbott, John Easton and Justin Niehaus from the NASA Glenn Research Centre. Carriere continued; “NASA asked us to develop a fire extinguisher that is safe to use without personal protection equipment, is capable of extinguishing both rack [hidden] and open cabin fires, and will not damage the Space Station if discharged. A Fine Water Mist PFE meets these criteria, but there was no previous evidence to demonstrate that an extinguisher of this type would perform to expectations in the zero gravity environment of the ISS. Thanks to NASA’sFlight Opportunities program, which provides access to the Reduced-Gravity Parabolic Flights, we were able to demonstrate that it could.” Malvern’s Spraytec is specifically designed to address the unique requirements of spray particle and droplet characterisation across a wide range of industries and applications. The Spraytec provides in- situ, robust, real-time droplet size measurements, giving accurate, reproducible results time and again.


Circle no. 180


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GLASSCO LABORATORY EQUIPMENT PVT LTD


Web: www.glasscolabs.com Email: info@glasscolabs.com


Circle no. 181


Exceptionally Compact and Ecological Ultra-Low-Temperature Freezer


Telstar enters the field of ultra-low-freezing by developing its own technology for cold storage applications. Telstar Cold Storage technology has been applied to a new line of innovative equipment focused on efficient and safe sample storage in the laboratory and research process. The new line of Telstar Igloo ultra-low-freezers range from low temperature range -45°C to ultra low temperature range -86°C.


Under the green line concept, the new Telstar Igloo ultra-low-freezer offers -86°C temperature and provides an innovative and energy efficient storage system, superior temperature performance and uniformity. It also offers the lowest power consumption and low noise level (< 50 dB(A)) in a small footprint, which enables a more optimised freezer layout and the flexibility to adapt to any space.


This entry into the world of ecological and green ultra-freezing further expands Telstar’s offering of process solutions for biopharmaceutical laboratories and research centres through its own clean air, freeze-drying, containment, cell culture and, now, cold storage technologies. Telstar invests 3% of its turnover in research, development and innovation of its technologies and equipment.


Telstar Cold Storage offers ULT freezers in both -86ºC and -45ºC temperature configurations, all of which include Vacuum Insulation Panels (VIP). The freezers offer outstanding storage efficiency in vials per m2


to save on valuable lab space. The


combination of low power consumption, the lowest noise level and the standard use of ecological, green refrigerants makes it the most environmental friendly ULT freezer range. Reliable storage for valuable samples is safeguarded with help of a high capacity cooling system. All of this is controlled and monitored at eye-level by the most complete, self-diagnostic control system. As a standard, internal materials are stainless steel. This includes inner walls, shelves and even the inner doors. The Telstar freezer range offers both upright and chest types with capacities from 370 up to 830 liters.


The German company Retsch GmbH, located in Haan near Duesseldorf, is a global market leader in laboratory instruments for the preparation and characterisation of solids in the context of quality control. They have now moved to their new, larger headquarters, which were built in a record time of only 12 months. The new premises are located on a 30,000m2


estate in a new industrial area of Haan and


comprise an office building, a spacious application and training centre and considerably larger production facilities.


Against the background of the very dynamic increase in turnover during the last 10 years, and the growing number of employees, which has accompanied this development, the new headquarters are designed for further growth. Retsch’s sister companies Retsch Technology (optical particle analysers) and Verder Deutschland (pumps) also moved into the new building which is heated and cooled solely by geothermal energy and exceeds the latest guidelines for the efficient use of resources.


Circle no. 183 Circle no. 182 Laboratory Taps and Fittings


TOF Laboratory taps and fittings distinguish themselves for their reliability. Every component is individually tested, durable, is epoxy coated and complies with the most important international standards and regulations.


The wide range of TOF laboratory taps allows an high versatility: water, burning and industrial gases, compressed air, vacuum and polypropylene taps for distilled and demineralised water. Every series is specifically designed to meet the most demanding requirements on the customer’s side.


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