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Homepage>CSN Standards>05 WELDING, SOLDERING, CUTTING OF METALS AND PLASTICS>0511 Destructive and non-destructive testing of welds>CSN EN ISO 3690 - Welding and allied processes - Determination of hydrogen content in arc weld metal
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Released: 01.03.2019
CSN EN ISO 3690 - Welding and allied processes - Determination of hydrogen content in arc weld metal

CSN EN ISO 3690

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

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Number of Standard:CSN EN ISO 3690
Category:051105
Pages:36
Released:01.03.2019
Catalog number:506340
DESCRIPTION

CSN EN ISO 3690

CSN EN ISO 3690 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 material. 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. NOTE: Recommendations and restrictions in regard to older methods of measurement using glycerine are given in Annex B for any comparison work to these older methods.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.