IPC have international standard courses on assembly: http://www.eytraining.org.uk/t/Services/IPC-Training.aspx
The five IPC certification programmes are:
IPC A-610 Acceptability in Electronic Assemblies is for quality
assurance/visual acceptance of electronic assemblies based on the
world's most widely used electronics assembly acceptability standard
IPC J-STD-001 Requirements for Soldered Electrical and Electronic
Assemblies is for hand and machine soldering processes and material
requirements. It includes hands-on training.
IPC A-600 Acceptability of Printed Boards is for quality
assurance/visual acceptance of unpopulated printed circuit boards and
explores the specifications, problems and faults that occur with the
manufacture of PCBs.
IPC/WHMA A-620 Requirements and Acceptance for Cable and Wire Harness
Assemblies is for improving the quality of your cables and harnesses,
reducing errors and costs.
IPC 7711/7721 Rework, Modification and Repair of Electronic Assemblies
is for the rework, repair and modification of electronic assemblies,
rather than scrapping them. It features hands-on training.