PTB and BAM shared exhibition space to provide information on current issues of explosion prevention and protection in Europe at the PowTech exhibition in Nuremberg from 27 to 29 March.
The manufacturers are responsible for observing the provisions of all EU Directives, which apply to any equipment being brought to market in Europe. Because this requires a clear and complete overview of the EU Directives, small and medium enterprises in particular, find this difficult to achieve.
Equipment must be explosion-protected if it is to be used in potentially explosive atmospheres. When liquids, dust and gases mixed with air are present, explosive mixtures may be produced and just a small ignition spark is sufficient to initiate an explosion of the mix.
The German industry still has problems in implementing the European Directive 94/9/EC (ATEX 100a respective ATEX 95) which came into force in 2003. Since this directive has been drafted in a general form, questions are frequently asked about its sphere of application, the requirements in special cases and the entire process of market access. Market access is only possible when the manufacturer has received or holds an EC declaration of conformity. This declaration attests that the product meets the legal minimum requirements of equipment safety. The manufacturer can then attach the CE label to the product.
These products are tested, assessed and certified by notified bodies such as PTB and BAM, who are both notified bodies within their area of competence in safety engineering.Contact: Dr. Ulrike Rockland
Dr. Ulrike Rockland | idw
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17.08.2017 | DOE/Los Alamos National Laboratory
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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