EWI has the unique distinction of being the only commercial lab in the country that offers diffusible hydrogen testing and certification to welding consumable manufacturers.
Diffusible hydrogen testing is done in accordance with AWS 4.3 using the gas chromatograph method. The test is required for many of the AWS A5 filler wire specifications and several military specifications. In addition, some end users of the wire need to have third-party validation that the welding wire they plan to use conforms to specifications.
While most large filler wire manufacturers have the capabilities to perform the testing themselves, many smaller companies do not. EWI offers those manufacturers the ability get the testing done, and receive third-party validation, at the same time.