ISO 3690:2012

$36.40

Welding and allied processes — Determination of hydrogen content in arc weld metal

Published By	Publication Date	Number of Pages
ISO	2012-03	28

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Categories: 25.160.40 - Welded joints and welds, ISO

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Description

ISO 3690:2011 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 ISO 3690:2011 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.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	2012-03
Pages Count	28
Language	English
Edition	3
File Size	573.4 KB
ICS Codes	25.160.40 - Welded joints and welds

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ISO 3690:2012

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