Description:

Description of evaluation objective

This syllabus specifies the examination knowledge points and requirements for the main contents of each chapter, so as to make the examination content concrete and standardized. The purpose is to further clarify the contents and requirements of the exam for candidates and systematically study the teaching materials with a purpose; In order to make the scope of the proposition clearer and arrange the level of knowledge and ability and difficulty of the test questions more accurately.

Second, some requirements about the proposition test

1. For the propositional examination, the examination scope and assessment requirements shall be determined according to the contents and assessment objectives specified in this syllabus. Do not arbitrarily expand or narrow the scope of the examination, and do not raise or lower the assessment requirements. The examination proposition covers all chapters, and highlights the key chapters appropriately, reflecting the key contents of this outline.

2. The difficulty structure of the test questions should be arranged reasonably. The difficulty of the test questions can be divided into three levels: easy, medium and difficult. In each test paper, the scores of different difficult questions are generally: easy to account for 30%, medium to account for 50%, and difficult to account for 20%. It must be noted that each part has different difficulties.

3. The questions that may appear in this course are: true or false, single, multiple choice, short answer and essay. Judgment questions, multiple-choice questions and answers are unique, the proposition should be accurate and the answer should be accurate; Judgment questions mainly involve understanding concepts and principles, and answers should be able to grasp the main points; The essay questions involve the comprehensive application of knowledge, concepts and principles, and examine the ability to analyze and solve problems. Therefore, answering questions should not only be accurate, but also grasp the main points, and conduct necessary discussions around the point of view.

The first 1 chapter gas source introduction

Examination purpose

The purpose of passing the examination is to test the examinee's mastery of basic knowledge such as natural gas, dry distillation gas, gasified gas and liquefied petroleum gas. , and understand the principle of gas purification, process and equipment, as well as natural gas mining, transportation and storage equipment. This chapter enables candidates to correctly and reasonably choose urban gas sources.

Examination content

1, gas properties

Master the classification and quality requirements of gas, conversion of gas-liquid components of liquefied petroleum gas, dew point temperature, high and low calorific value of gas, and understand the basic physical properties and combustion characteristics of gas.

2. Gas dry distillation

Understand the classification and characteristics of coal, and understand the definition and classification of coal dry distillation.

3. Gas purification

Understand the basic knowledge of gas impurities and gas purification, such as absorption and rectification, master the purification process of coke oven gas, understand the condensation and cooling methods of gas, understand the removal of sodium in gas, and understand the removal methods of hydrogen sulfide and carbon dioxide.

4. Natural gas

Understand natural gas exploration and production technology, gas well and gas field exploitation, and understand compressed natural gas and liquefied natural gas.

5. Natural gas purification

Understand the impurities and hazards in natural gas, and master the methods of dehydration, deoiling and acid gas removal.

6. Gasification of gas

Understand the gasification process, understand the main influencing factors, understand the basic structure of producer and water gas furnace, the process flow of producer station, understand the fluidized bed and pressurized gasification process, and understand the content of gas transformation and underground gasification.

7, oil to gas

Understand the raw materials, principles and methods of petroleum to natural gas.

8. LPG

Understand the source and characteristics of liquefied petroleum gas.

Chapter II Gas Transmission and Distribution

Examination purpose

Through the examination, the purpose is to test the examinee's mastery of the basic concepts, theories and calculation methods of gas transmission and distribution system, so that the examinee can understand the new theories, technologies and equipment of urban gas transmission and distribution technology, and can undertake the design and operation management of urban gas system (including liquefied petroleum gas storage and distribution station) at work.

Examination content

1, urban gas demand and supply-demand balance

Master the calculation of urban gas demand and the analysis of gas demand conditions, and understand the determination of hourly calculation flow of gas transmission and distribution system and the method of supply and demand balance of gas transmission and distribution system.

2. Long-distance gas transmission system

Understand the composition of long-distance gas transmission system, gas transmission trunk line and line selection.

3. Urban gas pipe network system

Master the classification and selection of urban gas pipeline network, gas pipeline wiring, industrial enterprise gas pipeline system and building gas supply system.

4. Gas pipeline and its connection method

Understand the commonly used gas pipelines and their connection methods, auxiliary equipment of gas pipelines and anti-corrosion methods of steel gas pipelines.

5. Hydraulic calculation of gas pipeline network

Master the basic equation of gas flow in gas pipeline, understand the hydraulic calculation formula and chart of gas pipeline, and master the flow calculation and hydraulic calculation of gas pipeline network.

6. Hydraulic conditions of gas pipeline network

Understand the determination principle of calculated pressure drop of gas pipeline network and the analysis method of hydraulic condition of gas pipeline network.

7. Adjustment and measurement of gas pressure

Master the adjustment process of gas pressure, understand the function, classification and selection of gas pressure regulator, master the site selection principle of gas pressure regulating station, and be familiar with the measurement method of gas.

8. Gas pressure.

Understand the working principle of piston compressor, rotary compressor and centrifugal compressor, understand the variable working conditions and flow regulation, and be familiar with the layout of compressor room.

9. Gas storage

Understand the structure and working principle of low-pressure wet storage tanks, low-pressure dry storage tanks and high-pressure gas storage tanks, master the layout of gas storage and distribution stations, understand the calculation method of gas storage capacity of long-distance pipelines, and understand the liquefaction and liquid storage of natural gas and the underground storage method of gas.

10, liquefied petroleum gas storage and distribution station

Master the technology and methods of transportation, storage, loading and unloading and filling of liquefied petroleum gas, the technological process and plane layout of liquefied petroleum gas storage and distribution station, be familiar with the structure, technical requirements and inspection procedures of various storage tanks and the working principles of various safety accessories, understand the working principles, structures and technical requirements of hydrocarbon pumps and circulating compressors, be familiar with the working principles of liquefied petroleum gas filling scales and weighing devices, be familiar with the working principles of cylinder conveyors, filling turntables and residual liquid recovery devices, and be familiar with the structure of truck tankers.

1 1, liquefied petroleum gas supply

Master the gasification method of liquefied petroleum gas, the pipeline supply method of liquefied petroleum gas and the pipeline supply method of liquefied petroleum gas mixed with air, understand the relevant standards and regulations of bottled supply stations, be familiar with the gas supply process of bottle groups, and understand the working principles of gasifier and pressure regulating equipment.

Chapter III Application of Gases

Examination purpose

Through the examination, the purpose is to test the examinee's mastery of the basic theory and calculation method of gas combustion, the basic principle of combustion application equipment, the knowledge of combustion device design of civil gas appliances, the basic skills of operation and adjustment of combustion system, the basic mastery of performance testing methods of civil gas appliances and industrial combustion devices, and the understanding of new theories, technologies and equipment of gas application.

Examination content

1, combustion calculation of gas

Master the calculation of gas calorific value, understand the calculation method of theoretical air volume and excess air coefficient, understand the concept of combustion temperature and the physical significance of enthalpy-temperature diagram.

2. Kinetics of gas combustion reaction

Understand the conditions of branched chain ignition and hot spot ignition of gas, the basic principles and methods of gas ignition, the influencing factors of combustion reaction speed and the basic concepts of chain reaction.

3. Flame propagation of gas combustion

Understand the theoretical basis of flame propagation, the concept of normal flame propagation speed and its influencing factors, the measurement method of normal flame propagation speed, the concentration limit of flame propagation and the basic theory of turbulent flame propagation.

4. Gas combustion method

Master the principles and characteristics of diffusion combustion, partial premixed combustion and complete premixed combustion, and understand the methods to strengthen and improve the gas combustion process.

5. Gas burner

Master the classification and technical requirements of burners, be familiar with the structure, working principle, technical performance and application scope of diffusion burners, atmospheric burners and fully premixed burners, and understand the working principle and characteristics of special burners such as high speed, flat flame, low NOX and immersion.

6. Interchangeability of gases

Master the concepts of gas interchangeability and gas appliance adaptability, Bai Hua number and combustion potential, and understand the influence of flame characteristics on interchangeability and the judgment method of interchangeability.

7. Civil gas appliances

Familiar with the types, structure, characteristics, performance and usage of commonly used gas appliances, and understand the material requirements of gas appliances and the removal of flue gas.

8. Gas industrial furnaces and boilers

Understand the classification, basic composition and thermal characteristics of gas industrial furnaces and gas boilers.

9, gas industrial furnace waste heat utilization

Understand the technical and economic significance of waste heat utilization, heat exchanger and waste heat boiler.

10, automatic and safety control of gas combustion

Understand the significance of automatic and safety control of combustion, automatic ignition mode, automatic control and safety control.

1 1. Operation management and safety technology of gas application equipment

Familiar with the operation management and safety technology of gas application equipment.

Chapter IV Construction and Acceptance of Gas Engineering

Examination purpose

The content of this chapter is related knowledge of gas engineering construction and acceptance. The purpose of passing the examination is to test candidates' mastery of the construction technology, requirements and relevant national construction and acceptance standards of gas pipelines and equipment, improve candidates' ability to implement national standards and regulations and manage gas engineering construction, and ensure engineering quality and safe construction.

Examination content

1, pipes and fittings commonly used in gas engineering

Understand the types and related standards of gas engineering pipelines, fittings, valves and flanges. Familiar with the characteristics of steel pipe and polyethylene pipe. Master the method of selecting pipes and fittings according to medium parameters and relevant specifications.

2. Earthworks

Understand the relevant methods and regulations of pipeline trench construction, and be familiar with the classification and nature of earthwork, the determination of trench section size and the calculation of earthwork volume. Master the quality requirements of pipeline foundation treatment, earthwork backfilling and safety protection on the construction site.

3. Construction of anticorrosion layer and insulation layer

Understand the characteristics of anti-corrosion materials, the anti-corrosion construction of wet gas storage irrigation, the general provisions of pipeline corrosion control, and be familiar with the factors that should be considered in pipeline corrosion control and the requirements for electrical insulation. Master the requirements of cathodic protection setting, corrosion evaluation and construction requirements of pipeline anti-corrosion insulation layer for buried steel pipelines.

4, outdoor gas pipeline construction

Understand the ways and methods of gas pipeline entering ditch, installation of cast iron pipe and gas connection of gas pipeline. Familiar with the installation, flange connection, buried depth requirements of steel pipes and polyethylene pipes, and the clear distance requirements with buildings and other pipes. Master the inspection and acceptance of gas pipeline.

5. Pipeline crossing and crossing construction

Understand pipe jacking construction, underwater laying and directional drilling construction. Familiar with the requirements of laying pipelines across rivers.

6. Construction of indoor gas system

Understand the installation and technical requirements of indoor gas pipelines, and stipulate the reinspection of installed unvented gas pipelines. Familiar with indoor pipeline welding regulations, maximum spacing of steel pipe supports, gas meter installation regulations, gas equipment installation regulations, master the conditions that should be met before gas meter installation, and relevant regulations for indoor gas system test and acceptance.

7. Installation of gas equipment and pipeline accessories

Understand the installation and technical requirements of integral pump and the installation of integral compressor. Familiar with the installation of valves, condensate tanks, compensators and insulating flanges, and master the installation and technical requirements of gas pressure regulating stations (cabinets).

8. Construction of gas storage tanks

Understand the structure and structural characteristics, processing, installation, test and acceptance of spherical tanks and spiral guide tanks, and be familiar with the principle of high and low pressure tanks.

Chapter V Management of Safe Operation of Gas

Section 1 Station Safety Operation Management

Examination purpose

Through the examination, the purpose is to test the examinee's understanding of the production process, the function of equipment and facilities, the working principle and the safety operation rules, as well as the safe operation management of gate stations, storage and distribution stations, pressure regulating stations, metering stations and liquefied petroleum gas stations, so as to improve the operation management level of the station.

Examination content

1, master the process flow of natural gas gate station, storage and distribution station and metering station of pressure regulating station, be familiar with the functions and working principles of various equipment and facilities, understand the maintenance requirements, safety operation procedures, causes analysis and troubleshooting methods of common faults of various facilities, and understand the selection knowledge of various equipment and facilities.

2. Be familiar with the safety fire-fighting facilities of gas stations and their use knowledge and inspection cycle, and understand the inspection methods of safety fire-fighting facilities.

3, familiar with natural gas odorization way, master the role of odorizing agent and odorizing amount.

4, master the gas measurement method, familiar with the factors that affect the accuracy of measurement data, understand the choice of measuring instruments.

5. Familiar with LPG receiving process, tank car filling process, gas cylinder filling and liquid supply process, residual liquid recovery process, tank dumping and tank dumping process.

6, familiar with all kinds of gas station gas leakage, fire and explosion safety measures and treatment methods.

Section 2 Safe Operation of Gas Pipeline Network

Examination purpose

Through the examination, the purpose is to test the examinee's knowledge of safe operation management of urban gas pipeline network, and to investigate the examinee's mastery of basic conditions for safe operation of urban gas pipeline network and affiliated gas supply facilities with different pressure levels, management means to ensure safe operation, emergency rescue and repair, etc. So as to improve the safe operation and management level of urban gas pipeline network.

Examination content

1. Understand the debugging conditions and procedures of long-distance natural gas pipelines, understand the management of relevant information and data, and be familiar with the safety measures to be taken in debugging long-distance natural gas pipelines.

2, understand the basic requirements of high pressure pipeline inspection cycle and pipeline protection. Understand the internal and external anti-corrosion methods of high-pressure pipelines, the basic requirements for periodic inspection of anti-corrosion coatings and cathodic protection facilities, and the basic requirements for maintenance and overhaul of high-pressure pipelines.

3. Understand the causes of high-pressure pipeline leakage and pipeline blockage and various emergency treatment measures, and understand the basic requirements of high-pressure pipeline emergency repair and pigging.

4, master the relevant national laws, regulations and standards for the safe operation and management of urban gas pipeline network, familiar with the basic requirements for the safe operation and management of medium and low pressure gas pipeline facilities. Familiar with the meaning of above-ground signs in urban gas pipeline network, and know how to judge the type, pressure level and positioning of gas supply facilities according to the above-ground signs.

5. Understand the protection and protection methods of gas supply pipelines, and master the safety assessment methods of operating pipe networks.

6, understand the basic requirements of urban gas pipeline network ventilation replacement work, familiar with the pipeline network replacement procedures and safety measures.

7, familiar with the basic requirements of the operation and maintenance of gas facilities, understand the significance of daily safety inspections of urban gas pipeline network, familiar with the work content of daily safety inspections, and master the working methods of daily safety inspections.

8. Understand the significance of gas pipeline network pressure measurement and the hazards of gas leakage, be familiar with the causes of gas pipeline network leakage and blockage, master the inspection and repair methods of gas facilities leakage and blockage, and understand the service life of gas pipelines and the judgment methods and treatment measures of pipeline corrosion.

9, familiar with the gas pipe network ancillary facilities (valves, condensation tanks, etc.). ) and the basic requirements of operation and maintenance, understand its maintenance content, quality standards and safety operation procedures.

10, understand the basic tasks of urban gas dispatching operation management and the basic requirements of dispatching work, and understand the significance and methods of monitoring gas stations and gas pipelines.

1 1. Understand the establishment of gas accident emergency repair system, the configuration of emergency repair personnel and equipment, the requirements for emergency alarm handling, and the hazards of various sudden dangers (gas leakage, fire, explosion, etc.). ), familiar with the emergency handling organization of various dangers, familiar with the contents and requirements of emergency repair and emergency plan, and comprehensively and accurately analyze the accident.

12, learn about the reporting procedures of various gas accidents (gas leakage, fire and explosion, etc.). ), and familiar with the emergency rescue work site work requirements and safety measures.

Section 3 Management of User's Safe Use

Examination purpose

Through the examination, the purpose is to test the candidates' knowledge of safe operation and management and common sense of safe gas use of indoor gas pipelines, facilities and gas appliances, and to inspect the candidates' safety management of indoor gas pipelines, facilities and gas appliances, so as to improve the service guarantee level of safe gas use for users.

Examination content

1. Be familiar with the performance characteristics of indoor gas pipelines, facilities and gas appliances, and master the basic contents, inspection methods and leakage disposal methods of gas facilities safety inspection.

2. Understand the inspection cycle and service life of the gas meter, master the correct use of the gas meter and analyze the causes of common faults.

3. Familiar with the basic requirements of safe operation and safe gas use of indoor gas pipelines.

4. Understand the working principle, installation requirements and test methods of gas leakage alarm.

Chapter VI Laws and Regulations Related to Gas

Section 1 Construction Law

Examination purpose

The content of this part is "Building Law of People's Republic of China (PRC)", which aims to test the candidates' understanding, familiarity or mastery of the basic knowledge of the construction industry, such as the main legal system, capital construction procedures and construction legal responsibilities, so as to promote the candidates to consciously abide by the law and enhance their legal awareness.

Examination content

1, Overview of Building Law

Understand the legislative purpose, scope of application and basic legal system of construction law.

2. Building permit system

Understand the basic provisions of the construction permit and the general requirements for handling the construction permit or commencement report; Master the requirements of the state for engineering construction practitioners and business units to have corresponding qualifications or qualifications.

3, construction project contracting and contracting system

Understand the general provisions of construction project contracting and contracting.

4, the construction project supervision system

Understand the general provisions of the project supervision system; Familiar with the project scope that must be supervised.

5, construction safety production management system

Understand the basic principles and systems of safety production management of construction projects; Clarify the necessity of establishing and improving the responsibility system for production safety and the system of group prevention and treatment; Familiar with the general provisions of safety production management in all aspects of engineering construction.

6, the construction quality management system

Understand the basic system of project quality management, including: the system that the project quality must reach the standard, the legal quality responsibility system, the completion acceptance system, the project quality warranty system, the quality system certification system, etc. Familiar with the basic legal measures to ensure the construction quality.

7, construction legal responsibility

Understand all kinds of illegal construction behaviors and responsible subjects; Familiar with all kinds of illegal construction behavior corresponding legal responsibility.

Section 2 Safety Production Law

Examination purpose

The content of this part is "People's Republic of China (PRC) Law on Work Safety", which aims to test the examinee's understanding, familiarity or mastery of the basic legal knowledge of work safety, promote the examinee to strengthen safety awareness and ensure work safety.

Examination content

1, Overview of Safety Production Law

Understand the legislative purpose and scope of application of the safety production law; Familiar with the basic provisions of the safety production law.

2, production and business units to ensure safety in production

Understand the safety production conditions, safety investment and safety management regulations; Familiar with the safety management regulations of safety facilities, dangerous goods and major hazard sources; Familiar with the provisions of safety management at the production site; Understand other regulations on safety in production.

3. Rights and obligations of employees

Understand the employees' safety production obligations; Familiar with employees' personal protection rights.

4, the supervision and management of production safety

Understand the responsibilities of the departments responsible for the supervision and administration of production safety and their supervisors and inspectors; Familiar with the content of safety production supervision and management.

5, production safety accident emergency rescue and investigation and handling

Understand the emergency rescue responsibilities of people's governments at all levels; Understand the provisions of emergency rescue for production safety accidents; Familiar with the provisions of investigation and handling of production safety accidents.

6, production safety legal responsibility

Understand the illegal acts of production safety and the responsible subjects of production and business units; Familiar with the provisions of accountability for illegal acts in production safety.

Section 3 Regulations on Quality Management of Construction Projects

Examination purpose

The content of this part is "Regulations on Quality Management of Construction Projects" promulgated by the State Council, which aims to test candidates' understanding, familiarity or mastery of the basic legal system of quality management of construction projects, promote candidates to enhance quality awareness in construction, ensure project quality and safeguard people's lives and property safety.

Examination content

1, general provisions on quality management of construction projects

Understand the main body responsible for the quality of construction projects; Familiar with the basic principles of construction engineering activities.

2, the quality responsibility and obligation of the construction unit

Familiar with the quality responsibility and main obligations of the construction unit in engineering construction activities.

3. Quality responsibilities and obligations of survey and design units

Understand the quality responsibility and main obligations of survey and design units in engineering construction activities.

4, the quality responsibility and obligation of the construction unit

Familiar with the quality responsibility and main obligations of the construction unit in engineering construction activities.

5, the quality responsibility and obligation of engineering supervision unit

Understand the quality responsibility and main obligations of engineering supervision units in engineering construction activities.

6, construction engineering quality warranty system.

Understand the general provisions of the quality warranty system of construction projects.

7, construction quality supervision and management

Understand the general provisions of the government on the quality supervision and management of construction projects.

8, the construction project quality legal responsibility

Understand all kinds of construction engineering quality violations and responsible subjects; Familiar with the legal responsibilities corresponding to all kinds of engineering quality violations.

Section 4 Regulations on the Administration of Safety in Production of Construction Projects

Examination purpose

This part is the Regulations on the Administration of Work Safety in Construction Projects promulgated by the State Council, which aims to test the candidates' understanding, familiarity or mastery of various legal systems on the administration of work safety in construction projects, so that the candidates can establish safety awareness and ensure the safety of the projects during construction.

Examination content

1, general provisions on safety production management of construction projects

Familiar with the responsible subject of construction project safety production; Master the basic principles of safety production management of construction projects.

2, the safety responsibility of the construction unit

Familiar with the main safety responsibilities that the construction unit should bear in the engineering construction activities.

3. Safety responsibilities of relevant units such as survey, design and project supervision.

Understand the main safety responsibilities of survey, design, engineering supervision and other related units in engineering construction activities.

4, the safety responsibility of the construction unit

Familiar with the main safety responsibilities that the construction unit should bear in the engineering construction activities.

5, the supervision and management of government management departments on the safety production of construction projects.

Understand the main measures taken by the government management department to supervise and manage the safety production of construction projects.

6. Emergency rescue and investigation and handling of production safety accidents in construction projects

Understand the emergency rescue responsibilities of government management departments and the general procedures of emergency rescue; Familiar with the general provisions on the investigation and handling of production safety accidents in construction projects.

7, the legal responsibility of construction project safety in production

Understand all kinds of construction safety violations and responsible subjects; Familiar with the legal responsibilities corresponding to all kinds of safety violations in construction projects.

Section 5 Regulations of Shandong Province on Gas Management

Examination purpose

This part is the Regulations on Gas Management in Shandong Province promulgated by Shandong Provincial People's Congress, which aims to test candidates' understanding, familiarity or mastery of the safety review, gas business license, gas safety publicity, supervision and inspection of gas projects in Shandong Province, to promote candidates' awareness of gas safety and ensure gas safety in the gas industry.

Examination content

1, general provisions of gas management in Shandong province

Understand the legislative purpose of this Ordinance; Familiar with the scope of application of these laws and regulations.

2, gas engineering planning and construction

Familiar with the basic requirements and procedures for the preparation and approval of special gas planning; Master the basic requirements of gas engineering in survey, design, construction, supervision and completion acceptance.

3. Gas management

Master the specific provisions of the gas business license; Master the regulations that gas enterprises should abide by in management.

4, gas use management

Master the rules and prohibitions of gas users when using all kinds of gas.

5, gas facilities and equipment management

Familiar with relevant regulations on safety protection of gas facilities; Familiar with the production, management, testing, installation and maintenance requirements of various gas appliances.

6, supervision and inspection and accident treatment

Familiar with the main responsibilities of the supervision and inspection of the gas administrative department; Master the contents and procedures of gas accident treatment.

7. Legal liability

Understand all kinds of gas violations and responsible subjects; Familiar with the specific legal responsibilities that should be borne in violation of these regulations.

Section 6 "Regulations of Jinan Municipality on Gas Safety Management"

Examination purpose

This part is the Regulations on Gas Safety Management in Jinan promulgated by Jinan Municipal People's Congress, which aims to test the candidates' understanding, familiarity or mastery of various safety management systems in Jinan, such as gas operation, gas use and gas facilities, promote the candidates' awareness of gas safety, and protect people's lives and property and social security.

Examination content

1, General Provisions on Gas Safety Management in Jinan City

Familiar with the legislative purpose and scope of application of this Ordinance; Master the basic principles of gas safety management in Jinan.

2. Safety management of gas facilities

Master the specific requirements for the safety protection of gas facilities; Master the specific provisions on emergency repair of gas facilities; Familiar with the division of responsibilities of pipeline gas facilities and gas appliances maintenance and update.

3. Safety management of gas operation

Master the specific requirements of gas enterprise management; Master the specific requirements of bottled liquefied petroleum gas business activities.

4, gas use safety management

To master the specific provisions on the safe use of gas by all kinds of gas users and the safe use of gas facilities and appliances.

5, supervision and inspection

Familiar with the main responsibilities and authority of the supervision and inspection of the municipal gas administrative department.

6, legal responsibility

Familiar with all kinds of gas violations and specific penalties.

Main reference materials

1, edited by Gao, Gas Manufacturing Technology, China Building Industry Press;

2. Duan Changgui, editor-in-chief, Gas Transmission and Distribution, 3rd edition, China Building Industry Press 2001.12;

3. Tongji University, Gas Combustion and Application, 3rd Edition, China Building Industry Press;

4. Gas Engineering Construction, China Building Industry Press;

5. Code for Design of Town Gas (GB50028-2006), China Building Industry Press;

6. Safety Technical Specification for Operation, Maintenance and Emergency Repair of Town Gas Facilities (CJJ5 1—2006)

7. Code for Trial Operation and Production of Natural Gas Pipeline SY/T6233—2002

8. Code for Operation and Management of Natural Gas Pipeline SY/T5922-1994

9. Code for Construction and Acceptance of Town Gas Transmission and Distribution Engineering CJJ33-2005

10, Code for Construction and Acceptance of Town Gas Indoor Engineering CJJ94-2003.

1 1, technical specification for polyethylene gas pipeline engineering CJJ63- 1995.

12, Technical Specification for Corrosion Protection of Buried Steel Pipelines for Town Gas CJJ95-2003.