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DIN EN 60079-29-4 VDE 0400-40:2011-02

Explosive atmospheres

Part 29-4: Gas detectors – Performance requirements of open path detectors for flammable gases

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DIN EN 50241-1/A1 VDE 0400-40-1/A1:2004-06

Specification for open path apparatus for the detection of combustible or toxic gases and vapours

Part 1: General requirements and test methods;

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DIN EN 50241-1 VDE 0400-40-1:2000-04

Specification for open path apparatus for the detection of combustible or toxic gases and vapours

General requirements and test methods

54.57 € 
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DIN EN 50241-2 VDE 0400-40-2:2000-04

Specification for open path apparatus for the detection of combustible or toxic gases and vapours

Performance requirements for apparatus for the detection of combustible gases

54.57 € 
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