Document Details |
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| Name of Department/Committee : | MTD 11 | ||||
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| Document Number : | MTD 11 ( 23214) | ||||
| Document Title [English] : | Welding and allied processes — Determination of hydrogen content in arc weld metal (First Revision) | ||||
| Document Title [Hindi] : | वेल्डिंग और संबद्ध प्रक्रियाएं - आर्क वेल्ड धातु में हाइड्रोजन अंश का निर्धारण (पहला पुनरीक्षण) | ||||
| Document Type : | Revision | ||||
| Language : | English | ||||
| Priority : | 3 | ||||
| ICS Code : | 25.160.40 | ||||
| Date of Project Approval : | 25-05-2023 | ||||
| Standards to be Revised : |
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| Standards to be Superseded : |
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Classification Details |
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| Group : | Gases, Gas Cylinders , Machine tools and other mechanical products |
| Sub Group : | Welding Electrodes and Accessories |
| Sub Sub Group : | Test Methods of welding |
| Aspects : | Methods of tests |
| Risk : | None |
| Certification : | None |
| Short Commom Man's Title : | |
| ITCHS Code : | |
| Ministry : | |
| Sustainable development Goals : | |
| Degree of Equivalence : | Identical under dual numbering |
| Identical/Equivalent Standards : | ISO 3690:2018 |
| Organization Type: | ISO |
| Sl.No. | Synosis Points | |
| 1 | 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. | |
Timeline Details |
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Stages |
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| Sl. No. |
Stage | Date of Occurence | Remarks | Circulated to | Files |
| 1 | Generation of Document Number | 25-05-2023 | ------- | ||
| 2 | P-Draft Waived | 11-08-2023 | Since, it is an ISO adoption | ------- | |
| 3 | WC Draft | 11-08-2023 | Duration : 30 Days Submitted for HOD approval Remarks : For your kind comments and inputs please |
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| 4 | WC Draft | 11-08-2023 | WC approved by HOD |
MTDC | ------- |