Huntingdon Fusion Techniques has published a free guide to weld purging, aimed for all companies using stainless steel, nickel alloy, nickel chrome, duplex or titanium materials. The company has specialised in weld purging technology since 1975 and has developed a number of weld purging accessories which for use in sub-contract industries. This 20-page A5 booklet is presented as a glossary of weld terms and information from Argon to Zirconium.