BS EN746-2 : 1997 - Burners Ltd Home Page
Hardening sealants shall comply with EN 751. ... Solder with a melting point below 450 ,C and adhesives shall not be used. ... Arc welding shall comply with EN 25817, quality level C. .... The combustion air system shall be designed in a manner that prevents the back-flow of furnace atmosphere and/or flue gases through ...
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burners's website is burners.ltd.uk