HG/T 3143-1982 Technical requirements for liquefied petroleum gas tank trucks
Some standard content:
The standard of the Ministry of Chemical Industry of the People's Republic of China was converted into H6/313-782
HG 5—1471-82
Technical conditions for liquefied petroleum gas tank trucks
Published on July 5, 1982
Implemented on October 1, 1982
Approved by the Ministry of Chemical Industry of the People's Republic of China
Technical conditions for liquefied petroleum gas tank trucks
HG 5—1471—82
Published by China Standards Press
(Beijing Fuwai Sanlihe)
Printed by the printing workshop of China Standards Press
Distributed by Beijing Distribution Office of Xinhua Bookstore Sold by Xinhua Bookstores in various places Format 880×12301/16 Printing sheet 3/4 Number of words 19,000 First edition in February 1984 Second printing in February 1984 Number of copies 1—4,000
Book number: 15169·2-4929 Price 0.24 yuan Chinese
Standard 4.—78
Ministry of Chemical Industry of the People's Republic of China Technical Conditions for Liquefied Petroleum Gas Trucks
HG 5-1471-82
This standard is applicable to tank trucks with a tank volume greater than 1m\ used to transport liquid olefins, propane, butylene, butane, butadiene and their mixtures
The tank trucks referred to in the standard include single-vehicle tank trucks with tanks fixed on the chassis of the vehicle, mobile tank trucks with tanks placed in the cargo box of the truck by additional fastening devices, and semi-trailer tank trucks (hereinafter referred to as tank trucks). In addition to complying with the provisions of this standard, the manufacture of tank trucks shall also comply with the "Regulations on Safety Management of Liquefied Petroleum Gas Tank Trucks" issued by the State Administration of Labor and the requirements of the approved drawings. Materials
1.1 The quality of materials used in manufacturing tank cars shall comply with the relevant national and ministerial standards of my country. 1.2 The plates, pipes, bars and forgings used in manufacturing tank bodies and pressure components of tank cars must comply with the requirements of the "Design Regulations for Steel Petrochemical Pressure Vessels" jointly promulgated by the Ministry of Chemical Industry, the Ministry of Petroleum Industry and the Ministry of Machinery Industry. The steel plates used in manufacturing tank bodies shall be pressure vessel steel plates or boiler steel plates with a yield point of less than 40kgf/mm, and the forgings shall not be lower than the requirements in JB755-73 "Technical Conditions for Pressure Vessel Forgings". 1.3 The selection of welding materials shall refer to the provisions of JB/Z105-73 "Welding Code for Steel Pressure Vessels", but the welding rods for welding tank bodies shall be low-hydrogen alkaline type. Welding rods and welding wires shall have the quality certificate of the manufacturer. The tank car manufacturer shall make specific provisions for the re-inspection of welding materials and accept them according to the provisions. 1.4 The steel plates used to manufacture tank car tank bodies must have a quality certificate. The quality certificate shall list the following items: furnace (tank) number, batch number, measured chemical composition, mechanical properties and supply status, etc. The tank car manufacturing unit must test the chemical composition and room temperature mechanical properties of the steel plate according to the furnace and approval, and check the surface quality of the steel plate one by one. Unqualified steel plates are not allowed to be used. 1.5 The substitution of materials for the main pressure-bearing components of the tank body must be approved by the tank car design unit and accompanied by supporting documents. 1.6 When using foreign materials, they should be accepted according to the corresponding foreign material standards. The substitution of foreign materials shall be in accordance with the provisions of Article 1.5. 1.7 The tank body and main pressure-bearing components must have material transplantation marks (including: material brand, furnace number, batch number, number and thickness, etc.) Material mark substitution No.
2 Tank body processing
2.1 End
2.1.1 The end shall be hot pressed as a whole.
2.1.2 When the end is made by butting two steel plates, the arrangement of the weld shall comply with the provisions of Figure 1. The misalignment of the weld shall be in accordance with the provisions of Section 2.2.3: The requirements for the edges and corners formed at the butt weld shall be in accordance with the provisions of Section 2.2.5. Ministry of Chemical Industry of the People's Republic of China 198207-05 Issued 1982-10-01 Implementation
M Customer Standard Industry Data Free Download HG 5-1471—82
2.1.3 The minimum thickness of the head shall not be less than the minimum thickness of the design. Note: The minimum thickness of the design refers to the wall thickness plus corrosion allowance for strength calculation. 2.1.4 The main dimension tolerances of elliptical and dished heads shall be in accordance with the provisions of Figure 2 and Table 1. D,+an,
Nominal diameter of head
800-1200
1300-1600
1700~2200
Diameter tolerance
Maximum and minimum diameter difference
Long face convex plate
2.1.5 The depth of longitudinal wrinkles on the straight edge of the head shall not be greater than 1.5mm. \
Curved surface height tolerance
Direct selection height difference
2.2 Cylinder
HG 5—1471—82
2.2.1 The arrangement of longitudinal welds on the cylinder should be convenient for inspection and maintenance. Two adjacent longitudinal welds should be staggered, and the arc length of the staggered distance should be greater than 100mm.
The tolerance of the outer circumference of the cylinder shall refer to the requirements of Table 2. The specific value shall ensure that the misalignment of the circumferential weld joints meets the requirements of Section 2.2.4 and 2.2.21
.
Nominal diameter Dg
800~1200
1300～1600
1700-2200
Outer circumference tolerance
2.2.3 The misalignment of the longitudinal weld joints 6<0.1S (Figure 3). Figure 3
2.2.4 The butt-joint offset plate b of the girth weld shall meet the following requirements: When the wall thickness S<10mm, 60.25 (Figure 4). When the wall thickness s>10mm, b<0.1s+1mm (Figure 4). Figure 4
2.2.5 The edge angle E formed at the butt longitudinal weld is <0.1S+2mm, and is checked with a sample with a chord length equal to 1/6Dg and not less than 300mm (Figure 5).
wwwt.1/6月not less than 00
HG5—1471—82
1/6 and not less than 300
2.2.6 The maximum and minimum diameters e<1%Dg on the same section. When there is an opening reinforcement or pad, it should be measured at a position 100mm away from the edge of the reinforcement or pad.
2.2.7 The length tolerance of each cylinder section is ±2mm. 2.2.8 The straightness of the cylinder is 2/1000 of the length of the cylinder. Note: The linearity inspection of the cylinder 1 is carried out on the horizontal and vertical planes passing through the center line, that is, a 0.5mm thin steel wire is pulled at four positions along the circumference of 0, 90, 180°, and 270*, and the height of the measuring plate is not less than 100mm from the longitudinal weld. 2.3 The misalignment b of the girth weld between the head and the cylinder shall be in accordance with the provisions of Section 2.2.4, and the b value shall be determined based on the cylinder thickness S. 2.4 The angle E formed at the girth weld of the tank body is ≤0.1S+2mm, and is checked with a ruler of not less than 300mm in length (Figure 6). Figure 6
2.5 Flange
2.5.1 The flange surface of the pipe shall be perpendicular to the center line of the pipe, and its verticality shall be 1% of the outer diameter of the flange (when the outer diameter of the flange is less than 100mm, it shall be calculated as 100mm), and shall not exceed 3mm. 2.5.2 When not specified in the drawing, the flange of the pipe and the bolt holes of the flange shall be symmetrically distributed on both sides of the center line of the main axis of the tank body, and shall not overlap with it.
2.6 The distance between the edge of the weld between the internal parts of the tank body and the edge of the circumferential weld of the cylinder body shall not be less than 50mm. 2.7 All welds on the tank body covered by reinforcement rings, supports, pads, etc. shall be qualified by non-destructive testing before being covered, and shall be polished to be flush with the parent material
2.8 The limit deviation of the unindicated tolerance size shall comply with the provisions of GB1804-79 "Tolerances and Fits Limit Deviations of Unindicated Tolerance Sizes". For cutting parts, the hole (shaft) tolerance is H14 (h14), and for non-cutting parts, the hole (shaft) tolerance is H16 (h16). If the length dimension is not marked with a tolerance, the upper deviation of the length dimension is the upper deviation of the hole, and the lower deviation is the lower deviation of the shaft. 2.9 Sharp scratches on the surface of the tank body should be repaired to make it smooth. The grinding depth should not exceed 5% of the thickness of the steel plate. If it exceeds, repair welding is allowed.
3 Tank welding
HG 5—1471—82
3.1 Welders responsible for tank bodies and pressure components must pass the examination in accordance with the "Boiler Pressure Vessel Welder Examination Rules" promulgated by the State Administration of Labor, hold a valid certificate of qualification, and strictly weld according to the welding process that has been evaluated and qualified. After welding, the welder code should be stamped at the appropriate position near the weld.
3.2 Welding test plate
3.2.1 Test plate preparation
3.2.1.1 A longitudinal seam welding test plate should be made for each tank car. Under the condition of stable welding quality, one test plate can be made for each batch of products (not more than 10 units) after approval by the provincial, municipal or autonomous region labor week. 3.2.1.2 The material of the test plate must be of the same grade and thickness as the tank body, and the material must be of the same qualified material supplied in the same state. 3.2.1.8 The specifications of the test plate refer to Figure 7
3.2.1.4 The test plate must be welded to the tank body at the same time as the extension of the longitudinal weld of the tank body, and heat treated together with the tank body. 3.2.1.5 The appearance and non-destructive testing requirements of the test plate weld are the same as those of the tank body weld. 3.2.2 The welded joints of the test plate shall be subjected to tensile, cold bending and room temperature impact tests. 3.2.2.1 The specimen shall be cut from the qualified test plate, and the cutting method is shown in Figure 8. The length of the discarded part at both ends of the test plate shall not be less than 30mm for manual welding and not less than 40mm for automatic welding. R
1—Tensile force: 2—Bending, 3—Impact, 4—Metallurgy 5—Abandonment, 6—Back bending 3.2.2.2 Tensile test
The dimensions of the tensile test specimen are shown in Figure 9. The number of specimens is two and the thickness of the specimen is the plate thickness. HG 5--1471-82
The weld on the specimen that is higher than the surface of the parent material shall be machined to be level with the parent material. The sharp edges and corners of the specimen shall be smoothed and the fillet radius shall not be greater than 1mm.
The tensile test method shall be carried out in accordance with the provisions of GB228-76 "Metal Tensile Test Method". The tensile strength (or yield strength) of the specimen shall not be lower than the lower limit of the specified value of each material under the same conditions. +:
--weld width, mm,
In the figure: A-
S plate thickness, mm
Li---length dimension, mm (depending on the structure of the testing machine); L--full length of the specimen, mm;
L = A+12+2 (L + L2)
--arc transition length with radius R=25, nm. 3.2.2.3 Bending test
The specimen is digitally displayed as two, and face bending and back bending tests are performed respectively. The specimen dimensions are shown in Figure 10. The portion of the weld on the specimen that is higher than the surface of the parent material shall be removed mechanically and the original surface of the parent material shall be retained. The edges and corners of the specimen shall be rounded, and the radius of the rounded corner shall be less than 0.15.
The bending test method shall be carried out in accordance with the provisions of GB232-63 "Metal Cold and Hot Bending Test Method". The weld centerline of the specimen shall be aligned with the center of the bending axis. The specified bending angle of the specimen is shown in Table 3. 1
. In the figure: S——plate thickness, m
B——specimen width, equal to 30mm;
LD+2.5.5+100mm
bending axis diameter, mm. bZxz.net
Welding type
Double-sided cicada
HG 5--147182
bending axis diameter
distance between supports
bending angle
(α).
After the bending specimen is cold-bent to the angle specified in Table 3, the length of the transverse cracks and defects on its tensile surface shall not be greater than 1.5mm, and the length of the longitudinal cracks and defects shall not be greater than 3mm.
Note: ①If sufficient pore defects are found on the specimen, another sample can be taken for repeated testing. ②Preliminary cracking of the edges and corners of the specimen is not counted.
3.2.2.4 Impact test
Three samples are required. The notch on the sample should be located inside the weld side of the last weld. The impact test is carried out in accordance with the provisions of GB229-63 "Metal Normal Temperature Impact Toughness Test Method". The arithmetic mean of the impact toughness of the three samples should not be lower than the lower limit of the specified value of the weldment parent material. Only one of the samples is allowed to have a slightly lower value, but it shall not be lower than the lower limit of the specified value by 1kgf·m/cm2.
3.2.3 If the welding test plate test fails, it is allowed to re-test with the original test plate or another test plate welded at the same time, but double samples should be taken for re-testing of the unqualified items. If it still fails, the tank weld represented by the test is unqualified. 3.3 Welding procedure assessment
3.3.1 When the tank material, welding material and welding method are changed, the welding test plate must be prepared for welding procedure assessment before the tank is welded. Before evaluating the welding procedure test plate, the crack resistance test of the welded joint should be carried out. 3.3.2 The welding procedure test plate must pass the appearance inspection and flaw detection inspection, and its evaluation standard is the same as the tank body requirements. 3.3.3 The welded joints should be subjected to tension, cold bending and warm impact tests. Number of specimens: two tension, two face bending, two back bending, nine impact (three each for weld, fusion line, and heat affected zone). 3.3.4 The specimen size, test method and evaluation standard shall comply with the relevant provisions of Article 3.2 of this standard. 3.3.5 The welded joints shall be subjected to metallographic tests and hardness tests, and the welds and heat affected zones shall be inspected by metallographic tests. Any type of cracks are not allowed.
3.3.6 The welding process test plate of the fillet weld shall be subject to visual inspection and magnetic particle or penetration testing. After passing the inspection, five cross-sections of the weld joint (including one at the head and tail of the weld) shall be cut for inspection and evaluation. The weld and the parent material shall be completely qualified and shall not have defects such as cracks, slag inclusions, dense pores and incomplete fusion.
3.4 The surface quality of the weld and the heat-affected zone shall meet the following requirements: a. The surface shall not have defects such as cracks, pores, arc pits and slag inclusions. b. The weld shall have a smooth transition, the width and narrowness shall be curved, and the weld reinforcement height shall not exceed 2mm. c. The weld undercut depth shall not be greater than 0.5mm, the continuous length of the undercut shall not be greater than 100mm, and the total length of the undercut on both sides of the weld shall not exceed 10% of the length of the seam.
d. The slag on the weld and the spatter on both sides must be removed. After grinding the mechanical damage or other defects on the weld surface, the thickness of the weld shall not be less than the thickness of the parent material. e.
f. The fillet weld should have a smooth transition to the geometry of the parent material. The height of the weld angle, if not specified in the drawing, shall be equal to the thickness of the thinner welded part. The height of the weld angle of the fillet weld between the reinforcement ring and the tank body shall be 0.7S1 when the thickness of the reinforcement ring is ≥8mm, and shall not be less than 8mm.
4 Nondestructive testing of welds
4.1 The nondestructive testing of the tank body welds shall be carried out by inspectors who have passed the examination. The inspection results shall be recorded in detail. 4.2 The butt welds of the tank body must pass 100% nondestructive testing. If ultrasonic testing is used, it must be supplemented with more than 20% radiographic testing from time to time. The re-inspected areas shall include the intersection of the welds and the suspected areas of ultrasonic testing. 4.3 The results of nondestructive testing of welds shall comply with the provisions of Table 4. Table 4
Detection method
Detection standard
Qualified level
Radiographic flaw detection
JB 928—B7
Ultrasonic flaw detection
JB1152—81
Note: After using one of the above methods to detect welds, they must be qualified according to their respective standards before they can be considered qualified. When another flaw detection method is used for re-inspection, if there are defects that exceed the standard, the re-inspection length should be increased by 10% (corresponding to the total length of the weld): If there are still defects exceeding the standard, 100% re-inspection should be carried out.
4.4 All pressurized fillet welds such as manholes and pipes must be subjected to 100% magnetic particle or penetrant testing. The testing method can refer to the provisions of Appendix 5 or Appendix 6 of JB741-80 "Technical Conditions for Steel Welded Pressure Vessels". The inspection results shall not show cracks and delamination. 5 Weld Repair
5.1 All unqualified welds found in the tank body during the manufacturing process shall be repaired until they are qualified. 5.2 Repair measures should be taken when welding is repaired. And the consent of the welding technician in charge shall be obtained. Repair of the same part of the weld more than twice shall be approved by the manufacturer's chief technical investor. 5.3 The repaired welds shall be inspected and qualified according to the original testing method. 5.4 For welds found to be leaking during the water pressure test of the tank body, after the repair is qualified, they shall be heat treated and tested for water pressure respectively. 5.5 For welds found to be leaking during the overall air tightness test of tank trucks, they shall be subjected to heat treatment, water pressure test and air tightness test after being repaired and qualified.
5.6 For welds repaired after heat treatment, overall heat treatment shall still be carried out. If local heat treatment is carried out, there shall be a heat treatment process and the consent of the design unit shall be obtained.
5.7 For welds that have been repaired and qualified, the repaired parts, number of repairs, non-destructive testing results and heat treatment conditions shall be recorded in the product quality certificate.
6 Heat treatment of tank body
6.1 After the tank body is manufactured and passes the geometric dimensions and weld flaw detection inspection, it shall be subjected to overall residual stress elimination heat treatment. 6.2 During heat treatment, there shall be heat treatment specifications and appropriate measures shall be taken to prevent excessive deformation. After heat treatment, the inner and outer surfaces of the tank body shall be cleaned and no welding shall be carried out again. ? Tank body water pressure test and internal volume determination
7.1 Tank body water pressure test shall be carried out after tank body heat treatment. 7.2 Test water temperature shall not be lower than 5℃ for tank bodies made of carbon steel and 16MnR steel, and shall be in accordance with the drawings for tank bodies made of other steel materials.
WHG 5—1471—82
7.3 Water pressure test pressure shall be 1/2 of the tank body design pressure.5 times, the pressure holding time should be no less than 30 minutes, and then reduce to the design pressure, check all parts of the tank body, and there should be no significant deformation, uneven expansion and leakage. 7.4 After the test is passed, the accumulated water in the tank should be drained and the inner surface of the tank body should be blown dry. 7.5 The actual volume of the tank body should be measured. B Tank Truck Assembly
8.1 The automobile chassis used to manufacture tank trucks should comply with the relevant regulations of the Ministry of Machinery Industry. For the chassis modified from semi-trailer tank trucks, the modification plan must be reviewed and approved by the public security and traffic vehicle management departments, and qualified after identification, and there should be a certificate of qualification. 8.2 The various accessories and safety devices installed on the tank truck, such as safety valves, liquid level gauges, pressure gauges, thermometers, emergency shut-off devices, fire extinguishing equipment and various valves, must comply with the requirements of relevant standards (or regulations), and must have a factory inspection certificate or quality certificate. The pressure gauge and liquid level gauge must also have a proof of inspection issued by the measurement department. 8.3 Before assembling the tank truck, all accessories and pipelines must be tested for performance or tested to be qualified. The safety valve can be sealed only after adjustment.
8.4 The dimensions of the tank truck assembly must comply with the relevant regulations of the public security and transportation departments. 8.5 The assembly welds and heat-affected zones must not have defects such as cracks, pores, arc pits and slag inclusions. The weld surface should have a smooth transition, and weld scars and spatter should be removed.
9 Air tightness test of the whole vehicle
9.1 The air tightness test of the whole vehicle is carried out after the tank truck is assembled and inspected to be qualified. 9.2 The test medium is clean and dry nitrogen or air, and the gas temperature is not lower than 5°C. 9.3 When conducting the air tightness test, reliable safety protection measures should be taken. 9.4 The test pressure is the design pressure of the medullary body, and the pressure holding time is not less than 30 minutes. At the same time, the medullary body, accessories and connection parts are checked, and there must be no leakage.
10 Vehicle Inspection
101 After the tank truck is assembled, it must be inspected. The inspection items include: tank body quality plate, safety accessories, vehicle size, maximum lateral (left and right) tilt angle when empty, etc. 10.2 The maximum lateral tilt angle of the tank truck when empty should not be less than 35.11 Painting, signs and nameplates
11.1 The various paint colors and signs of the tank truck should be clear and intact. 11.2 The outer surface of the tank truck should be painted silver gray. A red stripe with a width of not less than 150mm should be painted around the horizontal center line of the body. 11.3 The words "No fireworks" shall be sprayed in red on the central part of both sides of the tank, with a height of not less than 200mm. 11.4 The outer surface of the safety valve and gas phase pipe shall be painted red, the liquid phase pipe and valve shall be painted silver-gray, and other exposed parts shall be as specified in the drawings. 11.5, "The next inspection date of the tank body: × year × month" shall be sprayed at an appropriate position below the color band at the rear end of one side of the tank body, with a height of about 100mm.
11.6 A metal nameplate shall be fixed on the tank truck, including: a.
Tanker model and name:
Filling medium,
Design pressure ( kgf/cm=);
Design temperature (C)
Volume (1),
Maximum filling weight (kg)
Full load weight of tank truck (kg)
Product number,
Manufacture date,
Manufacturer name.
Factory technical documents
Factory technical documents of tank truck include:
Product certificate,
Product quality certificate:
General drawing and main component drawing of tank truck:
Strength calculation sheet of tank body.
Product quality certificate of tank truck The quality certificate shall include:
HG5-—1471—82
Qualification certificate and inspection certificate of chassis (or vehicle) and accessories: brand, chemical composition and mechanical property re-test results of tank material, welding material and product welding test plate mechanical property inspection report! Weld flaw detection inspection (surface crack inspection, X-ray inspection, ultrasonic flaw detection inspection) report Tank post-weld heat treatment report:
Tank water pressure test report:
Tank appearance and geometric dimension inspection report 1
Vehicle body inspection report.
Product certificate and product The format and content of the product quality certificate shall comply with the provisions of Appendix 1 and Appendix 2 of the "Regulations on Safety Management of Liquefied Petroleum Gas Tank Trucks".
Additional Notes:
This standard is proposed and managed by the Chemical Machinery Research Institute of the Ministry of Chemical Industry. This standard was drafted by Beijing Metal Structure Factory. Participating units include: Jinxi Chemical Machinery Factory, Jinzhou Type Machinery Factory, Lanzhou Chemical Industry Company Chemical Machinery Factory, Yanshan Petrochemical Corporation Design Institute, etc. The main drafter of this standard is Lin Zhimin.
Book number: 151692-4929
Price:
Standard 4 —76
bzsoso.coCustomer Standard Industry Data Free Download 28
Tanker model and name:
Filling medium,
Design pressure (kgf/cm=);
Design temperature (C)
Volume (1),
Maximum filling weight (kg)r
Full load weight of tanker (kg)
Product number,
Manufacture date,
Manufacturer name.
Factory technical documents
Factory technical documents of tanker include:
Product certificate,
Product quality certificate:
General drawing and main component drawing of tanker:
Strength calculation of tank body.
The product quality certificate of the vehicle shall include:
HG5-—1471—82
The qualification certificate and inspection certificate of the chassis (or vehicle) and accessories: the brand, chemical composition and mechanical property re-test results of the tank material, the mechanical property inspection report of the welding material and the product welding test plate! Weld flaw detection inspection (surface crack inspection, X-ray inspection, ultrasonic flaw detection inspection) report Tank post-weld heat treatment report:
Tank water pressure test report:
Tank appearance and geometric dimension inspection report1
Vehicle body inspection report.
The format and content of the product certificate and product quality certificate shall comply with the provisions of Appendix 1 and Appendix 2 of the "Regulations on the Safety Management of Liquefied Petroleum Gas Tank Trucks".
Additional Notes:
This standard is proposed and managed by the Chemical Machinery Research Institute of the Ministry of Chemical Industry. This standard is drafted by the Beijing Metal Structure Factory. Participating units include: Jinxi Chemical Machinery Factory, Jinzhou Type Machinery Factory, Lanzhou Chemical Industry Company Chemical Machinery Factory, Yanshan Petrochemical Company Design Institute, etc. The main drafter of this standard is Lin Zhimin.
Book number: 151692-4929
Price:
Standard 4 —76
bzsoso.coCustomer standard industry data free download 28
Tanker model and name:
Filling medium,
Design pressure (kgf/cm=);
Design temperature (C)
Volume (1),
Maximum filling weight (kg)r
Full load weight of tanker (kg)
Product number,
Manufacture date,
Manufacturer name.
Factory technical documents
Factory technical documents of tanker include:
Product certificate,
Product quality certificate:
General drawing and main component drawing of tanker:
Strength calculation of tank body.
The product quality certificate of the vehicle shall include:
HG5-—1471—82
The qualification certificate and inspection certificate of the chassis (or vehicle) and accessories: the brand, chemical composition and mechanical property re-test results of the tank material, the mechanical property inspection report of the welding material and the product welding test plate! Weld flaw detection inspection (surface crack inspection, X-ray inspection, ultrasonic flaw detection inspection) report Tank post-weld heat treatment report:
Tank water pressure test report:
Tank appearance and geometric dimension inspection report1
Vehicle body inspection report.
The format and content of the product certificate and product quality certificate shall comply with the provisions of Appendix 1 and Appendix 2 of the "Regulations on the Safety Management of Liquefied Petroleum Gas Tank Trucks".
Additional Notes:
This standard is proposed and managed by the Chemical Machinery Research Institute of the Ministry of Chemical Industry. This standard is drafted by the Beijing Metal Structure Factory. Participating units include: Jinxi Chemical Machinery Factory, Jinzhou Type Machinery Factory, Lanzhou Chemical Industry Company Chemical Machinery Factory, Yanshan Petrochemical Company Design Institute, etc. The main drafter of this standard is Lin Zhimin.
Book number: 151692-4929
Price:
Standard 4 —76
bzsoso.coCustomer standard industry data free download 28
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