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Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
Address:
No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
Tel:
028-86014709
028-86014500
Email:
cnpc-ngo@cnpc.com.cn
Issue:ISSN 1006-5539
CN 51-1183/TE

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Comparative Analysis on Chinese National Standards and International Standards for 3LPE

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Key Words：3LPE； Property requirement； Comparison

Abstract：

In order to meet the needs of international projects and properly follow Chinese national standards and international standards for 3LPE coating， comparative analysis are conducted on requirements for coating thickness and performance and raw material properties in Chinese national standard GB/T 23257-2009 and international standard ISO 21809-1：2011. Analysis results show that requirements for material properties in Chinese national standard GB/T23257-2009 are more detailed and requirements for raw material supply are stricter than the international standard ISO 21809-1：2011， which are be beneficial to coating quality control and conform to the actual situation of pipeline construction in China. In engineering design of international projects， the international standard ISO 21809-1：2011 shall be followed strictly. However， for 3LPE coating made in China， more attention shall be paid to the differences between ISO21809-1：2011and GB/T23257-2009.