This International Standard covers the visual testing of fusion welds in metallic materials. It may also be applied to visual testing of the joint prior to welding.
DIN EN ISO 17637:2011 history
2017DIN EN ISO 17637:2017-04 Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2016); German version EN ISO 17637:2016
2011DIN EN ISO 17637:2011 Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003); German version EN ISO 17637:2011
DIN EN ISO 17637:2011 Non-destructive testing of welds - Visual testing of fusion-welded joints (ISO 17637:2003); German version EN ISO 17637:2011 has been changed from DIN EN 970:1997 .