Versatile pH Meter Used in the Cleanest Room in the World
Manufacturing Engineering and Automation IPA
The Fraunhofer-Gesellschaft is one of the leading organizations for applied research in Europe. It undertakes application-oriented research of direct utility to private and public enterprise and of wide benefit to society but does not participate in basic research. The customers are industrial or service companies and the German federal and local government. The 57 Fraunhofer Institutes employ more than 15,000 staff at 40 different locations in Germany. The annual research budget totals 1.4 billion Euros. There is very intense international cooperation through the research centers and representative offices in other European countries, the USA, Asia and in the Near East.
The institute focuses on areas such as corporate logistics, automation and robotics as well as surface technology. Materials and equipment tested by the Fraunhofer IPA are awarded the "Fraunhofer IPA TESTED DEVICE" certificate. This certifies the clean room capability for the different classes of equipment. Different physical and microbiological tests are performed in order to be able to provide exact information about each tested object or material and award the certificate. Our contact at the Fraunhofer IPA is Markus Keller of the Ultraclean Technology and Micro-Manufacturing Department.
The Super Cleanroom
The Ultraclean Technology and Micro-Manufacturing Department deals with technical questions concerning miniaturized production processes where contamination is a critical issue. These are encountered in branches such as the semiconductor industry, the automotive field and the life sciences. The showpiece in this department is the "cleanest" cleanroom in the world: it is ten times cleaner than ISO Cleanroom Standard Class 1, which is officially the cleanest class. This "super cleanroom" operates at overpressure and with a laminar air flow of 0.45 m/s. The climatic conditions are 22 °C and 45 % air/relative humidity. Markus Keller explains, "The SevenMulti S47 is used at the Fraunhofer IPA for different investigations at different places." The most important tests are:
Cleanability of surfaces
All surfaces used in hygienic production environments must according to the European Hygienic Engineering & Design Group (EHEDG) be especially easy to clean and disinfect. Polished stainless steel surfaces are considered ideal. To measure the effectiveness of the cleaning process, the microbiological bacteria count of the surfaces is measured before and after the cleaning using a surface contact method (Figures 1 and 2). This is performed by pressing a petri dish coated with nutrient agar against the surface with a defined force for 5 seconds. In this test method, the SevenMulti and the InLab Routine Pro pH electrode are used to prepare and set the exact pH of the nutrient agar.
Metabolization of materials
Under certain climatic and environmental conditions, microorganisms can colonize and propagate on the surfaces of plastics. Their presence can not only damage the plastic but also influence the proper functioning of the components that contain the plastics. To assess the action of microorganisms on materials, the Fraunhofer IPA uses the European EN ISO 846 test standard. The microbiological action on the plastic samples is investigated in a carbon-free nutrient medium. If no growth occurs in the culture medium, then the sample does not contain any nutrients for growth and metabolism can be excluded. The SevenMulti S47 two-channel instrument is used to set the pH of the mineral salt stock solution using a sterile 0.01 mol/L NaOH solution.
Questions and Answers
Article Tags:
versatile
,ph meter
,clean rooms
,extreme environmental conditions
,micro manufacturing department
,physical test
,microbiological tests
,semiconductor industry
,iso cleanroom standard class 1
,iso cleanroom
,cleanability of surfaces
,metabolization of
International vehicle transports service providers offer facilities for shipping you vehicle across to the new country. These vehicle transport companies have the legal authority, the right infrastructure and a wide network to carry out their operations.
Donaldson Company, Inc. is one of the world's premier supplies of a wide variety of filtration systems and the replacement parts to go with each system. The company has a long-standing tradition of providing excellent customer service and first-rate products. Founded in 1915, Donaldson continues to develop new products to meet their customers filtration needs. They accomplish this through dedicated research and development.
Cars for sale by owner has been a growing niche in the automotive industry today. Different automobiles are being sold by various car owners, and are not limited to some common brands.
Through pre owned car sales, consumers enjoy more benefits and options than they would purchasing a new vehicle.
Car is an asset while selecting the best asset is always wise. And so for the folks who wants the very first its time to get the GMC.
Loccioni humancare research announces APOTECAchemo, the first automation and information system for chemotherapeutic drug compounding in oncology treatment. As the flow of materials, data and tasks is coordinated, the technology becomes the means to a higher end: to benefit people, be they patients, pharmacists, specialists or operators. Every therapy produced is identified and checked.
METTLER TOLEDO has announced an on-demand webinar, Improved Beer Quality and Higher Yield with Optical O2 Measurement. Traditional amperometric oxygen sensors will be replaced in many applications by optical measurement technology. The webinar explains how optical oxygen sensors operate, why they offer significant improvements over non-optical sensors, and how they can lead to better beer and improved productivity.
The desire to develop new and improved chemical processes that optimize resource usage has resulted in intensive work towards the development of continuous flow reactors. Fast optimization of these systems can be a difficult, repetitive and time-consuming process due to the time taken to analyze off-line samples. ReactIR coupled to a DS Micro Flow Cell is the ideal way to dramatically reduce the time taken to optimize these systems.
With its ergonomically-shaped body, joystick control and large, full color screen, the E4 XLS introduces a revolutionary new graphical interface that makes even the most complex protocols simple to access and fast to execute.
Baking a cake may not be that difficult, but baking large identical batches of cakes is! This is a favourite saying of Engineering Manager Louis Van den Broek of Maître Paul, one of the largest bakeries in the Netherlands.
Discuss this Article
