ATEX certification successfully completed at Schneider Leichtbau
June 30, 2003 was the closing date of the transition period for implementation of Directive 94/9/EC governing equipment used in potentially explosive atmospheres – more familiarly known as the ATEX Directive. The ATEX Directive became national law by the 11th decree pursuant the Appliance Safety Act and as such is now an obligatory requirement. The equipment involved may be identified by the combined Ce + Ex marks, and sold throughout the EU.
All equipment manufactured by Schneider for use in potentially explosive atmospheres now holds the ATEX certificate and so complies with the substantially more stringent safety requirements imposed by the new legislation.
The ATEX Directive applies to explosion hazards brought about by gas and dust. It no longer imposes requirements only on electrical devices, but also on mechanical elements such as gears, bearings and belts (explosion hazard due to friction heat, electrostatic charging etc.).
It no longer applies only to equipment used actually in potentially explosive atmospheres but also to connected safety control and regulating devices located outside zones at risk from explosion (e.g. a weigh truck used in a potentially explosive atmosphere is connected to a printer outside, necessitating an interface in the transitional area), as well as structural components without any function of their own.Other light metals 1 | All about aluminium SEQUEL 10
Alongside aluminium, other light metals are also increasing in significance for the production of technical goods. Light metals and their alloys are used wherever the relevant weight-strength ratio cannot be achieved using more favourably priced metals (predominantly steel).
Metals with a specific weight of up to appr. 5g/ccm are designated as light metals. They are located within groups I to IV of the periodic table of elements. Alongside aluminium, primarily magnesium and titanium enjoy widespread use in light metal constructions.
Magnesium
Symbol: Mg
Element no.: 12 / Atomic mass: 24,305 g/mol / Group: Metals
Density (293 K): 1.738 g/ccm
Crystalline structure: hexagonal
Melting point: 648.79 °C
Boiling point: 1107 °C
Origin of the name: After the Greek region of Magnesia
Description: Soft, silver-white, very light-weight metal
Discovered by Joseph Black in 1755 (Scotland)
Eighth most frequent element occurring in the earth's crust
Titanium
Symbol: Ti
Element no.: 22 / Atomic mass: 47.88 g/mol / Group: Metals
Density (293 K): 4.51 g/ccm
Crystalline structure: hexagonal
Melding point: 1660 °C
Boiling point: 3287 °C
Origin of the name: Titans in Greek mythology
Description: Silvery-white high-strength metal, good forging properties
Discovered independently by William Gregor (England) and Martin H. Klaproth (Germany) in 1795
Tenth most frequent element occurring in the earth's crust
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