This standard specifies the qualifications, responsibilities and necessary conditions for regular inspection stations for gas cylinders. This standard applies to gas cylinder inspection stations that conduct regular technical inspections on seamless gas cylinders, welded gas cylinders, liquefied petroleum gas cylinders and dissolved acetylene gas cylinders. This standard does not apply to cryogenic gas cylinder inspection stations. GB 12135-1999 Technical conditions for regular inspection stations for gas cylinders GB12135-1999 Standard download decompression password: www.bzxz.net

GB12135--1999
Compared with the previous version, this standard adds the approval of station establishment and computer management, and deletes the provisions that the manual loading and unloading of cylinder valves and shockproof rings are allowed when the daily inspection volume is less than 10, so that the standard content is more in line with the current situation of my country's technological development. This standard replaces GB12135-1989 from the date of entry into force. This standard is proposed and managed by the National Technical Committee for Gas Cylinder Standardization. The drafting units of this standard are: Jinan Boiler and Pressure Vessel Inspection Institute, Dalian Boiler and Pressure Vessel Inspection Institute, Shenyang Military Region Air Force Engineering Machinery Repair Factory, Yuhang Brothers Industrial Company. The main drafters of this standard are: Zhang Guanglu, Sun Pinghui, Zhang Fuyuan, Chen Xianggen. 234
1 Scope
National Standard of the People's Republic of China
Technological specifications for periodic inspection station of gas cylinders
Technological specifications for periodic inspection station of gas cylinders This standard specifies the qualifications, duties and necessary conditions of periodic inspection stations of gas cylinders (hereinafter referred to as inspection stations). GB12135-1999
Replaces GB12135—1989
This standard applies to cylinder inspection stations that conduct regular technical inspections on seamless gas cylinders, welded gas cylinders, liquefied petroleum gas cylinders and dissolved acetylene gas cylinders.
This standard does not apply to cryogenic gas cylinder inspection stations. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T12137-1989 Gas cylinder air tightness test method GB/T 9251--1997 Gas cylinder water pressure test method GB/T13003-1991 Dissolved acetylene gas cylinder pressure test method 3 Station construction approval bzxz.net
3.1 Before establishing an inspection station, a written application must be submitted to the provincial boiler and pressure vessel safety supervision agency through the local boiler and pressure vessel safety supervision agency, and the construction can only be prepared after approval. 3.2 After the site is selected, the unit approved to build the station must report to the local environmental protection, public security, and boiler and pressure vessel safety supervision agencies, and the construction and equipment installation can only be implemented after approval of the on-site inspection. 3.3 After the completion of the factory building and the qualified installation and commissioning of the equipment, the provincial boiler and pressure vessel safety supervision agency shall be responsible for organizing the review and approval in accordance with the relevant regulations of the national boiler and pressure vessel safety supervision agency, and the national boiler and pressure vessel safety supervision agency shall be filed for unified issuance of the inspection station number and the cylinder inspection license shall be obtained before the cylinder inspection can be implemented. 4 Main responsibilities
4.1 Regularly inspect gas cylinders and issue inspection reports. 4.2 Repair or replace gas cylinder accessories
4.3 Apply coatings on the surface of gas cylinders.
4.4 Destructively treat scrapped gas cylinders. 4.5 Modify gas cylinders.
4.6 Report the inspection and evaluation of gas cylinders and the safety status of gas cylinders to the competent business department and the local boiler and pressure vessel safety supervision agency on time. The content should include the total number of inspections, qualified numbers, scrapped numbers and modified numbers of various types of gas cylinders. Approved by the State Administration of Quality and Technical Supervision on October 10, 1999, implemented on June 1, 2000
5 Basic facilities
GB12135-1999
5.1 The facilities and buildings of the inspection station must meet the relevant requirements of fire prevention, explosion prevention, environmental protection and labor protection. 5.2 The inspection station must have workshops, sites, safety facilities, testing equipment and tools that are suitable for the types and quantities of gas cylinders to be inspected. Inspection stations that inspect up to 3,000 gas cylinders per year should establish a microcomputer data processing and management system. 5.3 The inspection station must establish a quality management system, rules and regulations that are suitable for the gas cylinders to be inspected and can ensure the quality of inspection, and have corresponding standards, specifications and other technical information.
5.4 The inspection station must have equipment for handling flammable, toxic gases and residual liquids that meet the requirements of environmental protection, public security, and boiler and pressure vessel safety supervision agencies.
6 Inspection personnel
6.1 The inspection station must be equipped with a technical person in charge. The technical person in charge shall be a person who has obtained a gas cylinder inspector certificate and has the qualification of engineer or above (including engineer).
6.2 The inspection station shall have a number of gas cylinder inspectors that are suitable for the types and quantities of gas cylinders to be inspected, and there shall be no less than 2 inspectors for each type of gas cylinder. Gas cylinder inspectors shall meet the requirements of the "Boiler Pressure Vessel Inspector Qualification Examination Rules" issued by the Ministry of Labor, and be assessed in accordance with the rules to obtain an inspector certificate. 6.3 The inspection station must also be equipped with a certain number of operators and gas cylinder accessory maintenance personnel who have received business training and are suitable for inspection work. 6.4 The inspection station must set up full-time or part-time safety officers according to the scale of inspection to be responsible for the overall safety work of the inspection station. 7 Inspection equipment
7.1 Seamless gas cylinders, welded gas cylinders and liquefied petroleum gas cylinder inspection stations must be equipped with at least the following testing equipment and tools. 7.1.1 Recovering, replacing and processing equipment for toxic, flammable gases or residual liquids remaining in gas cylinders. 7.1.2 Automatic loading and unloading machine for cylinder valves. It is strictly forbidden to use pipe chain pliers or other tools that are easy to damage the bottle body to load and unload cylinder valves. 7.1.3 Automatic loading and unloading machine for shockproof rubber rings (for inspecting gas cylinders with a nominal volume of 400~1000L, manual loading and unloading can be performed on a rolling device). 7.1.4 Automatic water pouring device for gas cylinders (for the inspection of gas cylinders with a nominal volume of 400 to 1000L, water can be poured using an electric lifting device). 7.1.5 Devices for cleaning the outer surface of gas cylinders, such as rust removers, portable electric steel brushes or sandblasting (shot) devices. 7.1.6 Special tools such as measuring tools and fixtures, as well as templates, magnifying glasses and other tools for inspecting and measuring defects such as scratches, cracks, corrosion, dents and blisters on the surface of gas cylinders. Hardness testers are also required for the inspection of aluminum alloy seamless gas cylinders. 7.1.7 Devices for removing residues, grease and corrosion products in the cylinder. Steam purge devices are also required for the inspection of liquefied petroleum gas and other hydrocarbon gas cylinders or gas cylinders with grease on the inner wall. 7.1.8 Endoscopes for inspecting the inside of gas cylinders or lighting devices with a voltage not exceeding 24V and sufficient brightness. 7.1.9 Ultrasonic thickness gauges.
7.1.10 The maximum weighing value of the scale used to weigh the weight and measure the volume of the gas cylinder should be 1.5 to 3.0 times the commonly used weighing value. :7.1.11 The gas cylinder water pressure test device and its detection instruments and instruments must comply with the provisions of GB/T9251. If the types of gas cylinders to be tested include oil-free gas cylinders, a special pressure test device for oil-free gas cylinders must be equipped. 7.1.12 Gas cylinder internal drying device.
The gas cylinder air tightness test device and the test gas and detection instruments must comply with the provisions of GB/T12137. 7. 1. 13
7.1.14 Thread gauges and taps for inspecting the bottle mouth threads. 7.1.15 Tools, measuring tools and bottle valve air tightness test devices for inspecting bottle valves. Tools such as portable grinders for grinding defects on the outer surface of gas cylinders. 7.1.16
7.1.17 Stamp rollers, type guns or hand-typed stamp stands and commonly used stamps for marking inspection marks. 7.1.18 Equipment for spraying paint, color rings and words on gas cylinders. Tools or equipment for handling scrapped gas cylinders. 7.1.193
GB12135
7.1.20 Inspection stations for inspecting welded gas cylinders or liquefied petroleum gas and other hydrocarbon gas cylinders should also be equipped with measuring tools for inspecting welds. If necessary, non-destructive testing can be entrusted to other inspection units. 7.2 The periodic inspection station for dissolved acetylene gas cylinders should be equipped with at least the following inspection equipment and tools. 7.2.1 Equipped with the equipment and T instruments specified in 7.1.1, 7.1.2, 7.1.3, 7.1.5, 7.1.6, 7.1.9, 7.1.10, 7.1.14, 7.1.15, 7.1.16, 7.1.17, 7.1.18, 7.1.19, 7.1.20, etc. 7.2.2 The gas pressure test device and test gas, gas dryer, water tank and lifting device for dissolved acetylene cylinders, as well as the detection instruments and meters, must comply with the provisions of GB/T13003.
7.2.3 Special feeler gauges for measuring the gap of packings, as well as explosion-proof lighting facilities with a voltage not exceeding 24V and sufficient brightness. 237
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