Qualification of welding positions

Are you talking about welding procedure qualification or operator qualification

In accordance with AS3992

for welding procedures if impacts are not required 1G covers all positions but 3GVU
if impacts are required any change in position requires re qual

In practice this may not be adequate to ensure you have proven the process and you might want to qualify specific joints to cover the work you are doing

for operators
1G plate covers, 1G plate and 1G pipe over 150NB (anything other than 1G/2G and it is greater than 500NB)
I hope this helps
R
Admin

Just out of interest in this topic for procedure qulification you state that if a 1G weld is done and it requires impact testing then a fundamental change in welding position requires further qualification which is clearly stated in AS3992 table 5.1.4b.
So if a 6G pipe butt weld is done for a procedure qualification and impact testing is required does this cover the 5G and 2G position or does impact testing have to be carried out on two more seperate procedure qualifications to cover these fundamental change in welding postions.
Bearing in mind if there are no impacts required on a 6G procedure qulification then this covers you for all positions.

6G covers all positions, except vertical down – if a macro is taken from each position to be qualified. If impact testing is required, there is no requirement where they are taken from. 

To cover yourself, you could have impacts taken on each macro sample.