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IEC 60079-29-4-ed.1.0
Explosive atmospheres - Part 29-4: Gas detectors - Performance requirements of open path detectors for flammable gases
STANDARD published on 10.11.2009
The information about the standard:
Designation standards: IEC 60079-29-4-ed.1.0
Publication date standards: 10.11.2009
SKU: NS-408762
The number of pages: 67
Approximate weight : 201 g (0.44 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60079-29-4-ed.1.0 :
IEC 60079-29-4:2009 specifies performance requirements of equipment for the detection and measuring of flammable gases or vapours in ambient air by measuring the spectral absorption by the gases or vapours over extended optical paths, ranging typically from one meter to a few kilometres. Such equipment measures the integral concentration of the absorbing gas over the optical path in units such as LFL meter for flammable gases. This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard shall take precedence. The contents of the corrigendum of August 2010 have been included in this copy. La CEI 60079-29-4:2009 specifie les exigences daptitude a la fonction des materiels de detection et de mesure des gaz ou vapeurs inflammables dans lair ambiant dont le principe de fonctionnement est base sur la mesure de labsorption spectrale par les gaz ou vapeurs sur des chemins optiques etendus, generalement sur une etendue comprise entre un metre et quelques kilometres. Ce type de materiel mesure la concentration integrale des gaz absorbants sur le chemin optique en unites telles que le LII metre pour les gaz inflammables. Cette norme complete et modifie les exigences generales de la CEI 60079-0. Lorsquune exigence de cette norme entre en conflit avec une exigence de la CEI 60079-0, lexigence de la presente norme prevaut. Le contenu du corrigendum daout 2010 a ete pris en consideration dans cet exemplaire.
These corrections apply to this standard:
IEC 60079-29-4-ed.1.0/Cor.1
Correction
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Corrigendum 1 - Explosive atmospheres - Part 29-4: Gas detectors - Performance requirements of open path detectors for flammable gases
(Corrigendum 1 - Atmospheres explosives - Partie 29-4: Detecteurs de gaz - Exigences d´aptitude a la fonction des detecteurs de gaz inflammables a chemin ouvert)
Correction published on 10.8.2010
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