NF EN ISO 21904-3:2018
Current
The latest, up-to-date edition.
Health and safety in welding and allied processes - Requirements, testing and marking of air filtration equipment - Part 3: Determination of capture efficiency of suction flares
Hardcopy
English - French
13-07-2018
This document defines a laboratory measurement method for the capture efficiency of welding fumes from flares. The procedure specifies only a methodology, leaving the user the choice of the test parameters, in order to be able to evaluate the effect of different variables. It is applicable to integrated torch systems and systems in which a separate extraction system is attached to the welding torch near the arc zone. The methodology is suitable for use with all continuous wire soldering processes, for all types of materials and welding parameters. The method can be used to evaluate effects on the capture efficiency of variables, such as the extraction rate, the position of the extraction nozzle,
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