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GB/T 19285-2014: Inspection of corrosion protection for buried steel pipelines
Status: Valid GB/T 19285: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 19285-2014 | English | 1979 |
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Inspection of corrosion protection for buried steel pipelines
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GB/T 19285-2014
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| GB/T 19285-2003 | English | RFQ |
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Inspection of corrosion protection for buried steel pipelines
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GB/T 19285-2003
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Basic data | Standard ID | GB/T 19285-2014 (GB/T19285-2014) | | Description (Translated English) | Inspection of corrosion protection for buried steel pipelines | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J15 | | Classification of International Standard | 23.040 | | Word Count Estimation | 90,987 | | Date of Issue | 5/6/2014 | | Date of Implementation | 12/1/2014 | | Older Standard (superseded by this standard) | GB/T 19285-2003 | | Quoted Standard | GB/T 21447; GB/T 21448 | | Regulation (derived from) | National Standards Bulletin No. 9 2014 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the buried steel pipeline corrosion protection engineering and quality inspection for corrosion protection of content, given the detection evaluation methods. Put into use after testing and evaluation of this standard applies to th | GB/T 19285-2014: Inspection of corrosion protection for buried steel pipelines---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Inspection of corrosion protection for buried steel pipelines
ICS 23.040
J15
National Standards of People's Republic of China
Replacing GB/T 19285-2003
Buried Steel Pipeline Inspection of corrosion protection
Issued on. 2014-05-06
2014-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Terms, Definitions and Abbreviations 1
4 4 corrosive environment survey
5 8 outer coating inspection
6 of cathodic protection 9
Run checks and comprehensive examination of the corrosion protection system 137 Corrosion
Appendix A (normative) soil corrosion detection method 18
Appendix B (normative) Test Method 26 stray current interference
Annex C (normative) External Coating Physical Properties Test Method 35
Annex D (normative) coating damage point detection position is not excavation 41
Appendix E (normative) an outer coating 46 overall condition detection method
Annex F (normative) insulating flange (joint) performance testing of insulation 50
Current test within Annex G (normative) tube 55
Annex H (normative) ground resistance testing 58
Annex I (normative) sacrificial anode Parameter Test Method 60
Appendix J (normative) close interval potential detection method 64
Annex K (normative) buried steel pipe outer coating Grading 66
Annex L (normative) buried steel pipeline corrosion protection systems Fuzzy Comprehensive Evaluation 68
Annex M (normative) buried steel pipeline corrosion protection system rating 76
Annex N (informative) buried steel pipeline corrosion protection systems fuzzy comprehensive evaluation study 77
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 19285-2003. This standard compared with GB/T 19285-2003, the main technical changes are as follows.
--- Increased soil corrosion steel pipe inspection and evaluation methods buried;
--- Increasing the outer coating condition and not damaged excavation point detection and evaluation methods;
--- Increase the cathodic protection effect is not excavation detection methods;
--- Increasing the comprehensive evaluation method of corrosion protection systems.
--- Increase the corrosion protection of buried steel pipeline system fuzzy comprehensive evaluation algorithm example (see Appendix N).
This standard by the National Standardization Technical Committee of the boiler pressure vessel (SAC/TC262) and focal points.
This standard was drafted. China Special Equipment Inspection and Research Institute, the State Administration of Quality Supervision, Inspection and Quarantine of Special Equipment Safety Supervision Bureau,
CSIC seven hundred twenty-five, Beijing University of Technology, Chinese Academy of safety and environmental protection and technical supervision of PetroChina Southwest Oil and Gas Field, China Petroleum Engineering
Design Co., Ltd. Southwest Branch, University of Science and Technology Beijing, Shanghai Quality and Technical Supervision, Sinopec Zhenhai Refining & Chemical Branch, Shenzhen City, burning
Gas Group Co., Ltd., Shanghai Institute of Special Equipment Inspection, China Petroleum Daqing Special Equipment Inspection Center, China Petroleum length
Daqing oilfield oil one.
The main drafters of this standard. Ren Yang, Taoxue Rong, Huang Hui, Yang, Yong, Xu Yang Yun, Liu Long, Zhou Demin, repair the Long March, Comparison of anti
Wang Xinhua, Zhoufang Qin, Qin Lin, Shi Dai Yan, Zhang Ping, Li Xiaogang, Wang Shanjiang, Xu Chengyu, Zhong Zhihui, Chen Qiuxiong, Yang Valley, Wuya Bin, single Hongxiang,
Li Pei, Zang Guojun.
This standard replaces the standards previously issued as follows.
--- GB/T 19285-2003.
Buried Steel Pipeline Inspection of corrosion protection
1 Scope
This standard specifies the content inspection of buried steel pipeline corrosion protection engineering quality and corrosion protection effect, gives the detection and evaluation
method.
This standard applies to the process of construction and acceptance of buried steel pipeline corrosion protection project evaluation and detection of corrosion protection system put into use
The testing and evaluation.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 21447 outer steel pipeline corrosion control norms
GB/T 21448 buried steel pipeline cathodic protection Technical Specifications
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
The following terms and definitions apply to this document.
3.1.1
Soil resistivity soilresistivity
The average value per unit length of the resistance of the soil, is the characterization of soil conductivity indicators. The unit is Ω · m.
3.1.2
Pipe ground potentialofpipelinetosoil
Conduit adjacent electrolyte (soil) potential difference.
Note. The engineering staff will generally be "under conditions of cathodic protection tube ground" conventionally called the "protection potential."
3.1.3
Electrode potential electrodepotential
In contact with the same electrolyte between the electrode and the reference electrode, the outer circuit voltage measured.
3.1.4
Corrosion potential corrosionpotential
Metal corrosion in a given system, the electrode potential.
Note. Regardless of whether there is a net current (external) from research into or out of the metal surface, this term applies.
3.1.5
Corrosion potential freecorrosionpotential
No net current (external) from research into or out of the metal surface corrosion potential.
3.1.6
Redox potential redoxpotential
An inert electrode placed in moist soil containing oxidizing or reducing agent, the potential of establishing equilibrium between its oxidized state and a reduced state.
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