Guidelines IIW en EWF
Verkorte versies van de IIW guidelines :
http://www.iiwelding.org/WorkingUnits/QCMB_IAB/Documents/Forms/Short%20Version.aspx
De EWF guidelines :
http://www.ewf.be/training-qualification/standard-courses/guidelines
Verkorte versies van de IIW guidelines :
http://www.iiwelding.org/WorkingUnits/QCMB_IAB/Documents/Forms/Short%20Version.aspx
De EWF guidelines :
http://www.ewf.be/training-qualification/standard-courses/guidelines