Posted on March 5, 2018March 6, 2018 by Pulse AssentISO 21904-3:2018 Health and safety in welding and allied processes. Requirements, testing and marking of equipment for air filtration Determination of the capture efficiency of on-torch welding fume extraction devices Link: ISO 21904-3:2018 Health and safety in welding and allied processes. Requirements, testing and marking of equipment for air filtration Determination of the capture efficiency of on-torch welding fume extraction devices Source: BSI Standards Related Posts:New laws to introduce digital labelling for…Energy efficiency: what you need to knowNew efficiency drive to cut £5.5 billion of government wasteBusinesses to be given UK product marking flexibilityUK and US announce new energy partnership