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Database: 189759 (19 Oct 2025)
SY/T 4120-2018 English PDF
SY/T 4120: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
SY/T 4120-2018
English
RFQ
ASK
12 days [Need to translate]
Radiographic inspection for circumferential fusion welding joints of steel pipeline in highly hydrogen sulfide gas field
Valid
SY/T 4120-2018
SY/T 4120-2012
English
RFQ
ASK
13 days [Need to translate]
Radiographic inspection for circumferential fusion welding joints of steel pipeline in highly hydrogen sulfide gas field
Obsolete
SY/T 4120-2012
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Basic data
Standard ID
SY/T 4120-2018 (SY/T4120-2018)
Description (Translated English)
Radiographic inspection for circumferential fusion welding joints of steel pipeline in highly hydrogen sulfide gas field
Sector / Industry
Oil & Gas Industry Standard (Recommended)
Classification of Chinese Standard
E16;J33
Word Count Estimation
119,151
Date of Issue
2018-10-29
Date of Implementation
2019-03-01
Older Standard (superseded by this standard)
SY/T 4120-2012
Regulation (derived from)
National Energy Administration Announcement No.12 of 2018
Issuing agency(ies)
National Energy Administration