UNE-EN ISO 3690:2019
Current
The latest, up-to-date edition.
Welding and allied processes - Determination of hydrogen content in arc weld metal (ISO 3690:2018)
Hardcopy , PDF
Spanish, Castilian, English
03-07-2019
This document specifies the sampling and analytical procedure for the determination of diffusible hydrogen in martensitic, bainitic, and ferritic steel weld metal arising from the welding of such steels using arc welding processes with filler metal.The techniques specified in this document include collection of diffusible hydrogen via displacement of mercury or collection into a headspace filled with an inert gas such as argon. The amount of hydrogen collected is determined by measuring the displaced volume in the former and by, for example, thermal conductivity in the latter.The temperature for collection of diffusible hydrogen is controlled to avoid thermal activation of non diffusible hydrogen.
| Committee |
CTN 14
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Current
|
| Standards | Relationship |
| ISO 3690:2018 | Identical |
| EN ISO 3690:2018 | Identical |
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