Qualification test of welders. Fusion welding - Aluminium and aluminium alloysExecutive summary Qualification requirements of welders for fusion welding of aluminium and aluminium alloys. Abstract This International Standard specifies the requirements for qualification of welders for fusion welding of aluminium and aluminium alloys. It provides a set of technical rules for systematic qualification of welders, which are independent of product type, location and examiner examining body. When qualifying welders, the emphasis is

(BS 4395-1:1969 and BS 4395-2:1969 currently support BS 449 and BS 5950

with a rated heat input not exceeding 70 kW based on net CV (net calorific value)

If parameters in addition to those specified in EN 12668-3 are to be verified during the probe's life time

it is advised to separate the latter first

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The scope of the standard has also been expanded to include the operation and management of Automatic Number Plate Recognition (ANPR) and body worn cameras

BS EN IEC 62368‑1 classifies energy sources

BS ISO 21501-4:2007 Determination of particle size distribution

hafnium (Hf)

3 Presputtering

as well as on the finished screed

but does not include terms considered to be adequately defined in everyday English