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SY/T 4121-2018 English PDF

US$1799.00 ยท In stock
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SY/T 4121-2018: Code for design and construction of pipeline security forewarning system based on optical fiber sensing
Status: Valid

SY/T 4121: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
SY/T 4121-2018English1799 Add to Cart 10 days [Need to translate] Code for design and construction of pipeline security forewarning system based on optical fiber sensing Valid SY/T 4121-2018
SY/T 4121-2012EnglishRFQ ASK 10 days [Need to translate] Code for design and construction of optical fiber pipeline security forewarning system project Obsolete SY/T 4121-2012

PDF similar to SY/T 4121-2018


Standard similar to SY/T 4121-2018

GB 4343.1   GB/T 4365   

Basic data

Standard ID SY/T 4121-2018 (SY/T4121-2018)
Description (Translated English) Code for design and construction of pipeline security forewarning system based on optical fiber sensing
Sector / Industry Oil & Gas Industry Standard (Recommended)
Classification of Chinese Standard L07;P71
Classification of International Standard 35.240.50; 75.020
Word Count Estimation 78,797
Date of Issue 2018-10-29
Date of Implementation 2019-03-01
Older Standard (superseded by this standard) SY/T 4121-2012
Quoted Standard GB/T 13993.1; JGJ 184; SY/T 4108; YD/T 814.1; YD/T 1588.2
Regulation (derived from) National Energy Administration Announcement No.12 of 2018
Issuing agency(ies) National Energy Administration
Summary This standard is applicable to the design and construction of a pipeline safety early warning system for the construction or expansion of a communication optical cable with the same trench.

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Question 5: Should I purchase the latest version SY/T 4121-2018?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version SY/T 4121-2018 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.