This standard specifies the requirements, test and inspection rules for portable tanks for dangerous goods. This standard applies to the inspection of portable tanks for dangerous goods of Class 3 to Class 9 in the classification of dangerous goods. GB 19454.2-2004 Inspection of portable tanks for dangerous goods Safety specification Performance inspection GB19454.2-2004 Standard download decompression password: www.bzxz.net
This standard specifies the requirements, test and inspection rules for portable tanks for dangerous goods. This standard applies to the inspection of portable tanks for dangerous goods of Class 3 to Class 9 in the classification of dangerous goods.
Chapter 4, Chapter 5 and Chapter 6 of this standard are mandatory, and the rest are recommended.
The degree of consistency between this standard and the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (13th revised edition) is non-equivalent, and its relevant technical content is consistent with the model regulations. The standard text format is in accordance with GB/T1.1-200. Editorial changes have been made.
This standard is proposed and managed by the National Technical Committee for Standardization of Dangerous Chemicals Management (SAC/TC251). The
responsible drafting unit of this standard is the Dangerous Goods Central Laboratory of the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China.
Participating drafting units of this standard are: Tianjin Exit-Entry Inspection and Quarantine Bureau, Asia-Pacific Dangerous Goods Association, Jiangnan University.
Main drafters of this standard are: Wang Libing, Li Ningtao, Xiang Xuejie, Zhang Jiangping, Li Dequan, Zhang Yong.
This standard is formulated for the first time.
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated document, the latest version of the document shall apply to this standard.
GB19454.1-2004 General Rules for Safety Inspection of Portable Tanks for Dangerous Goods
ISO1496-3:1995 Freight Contalners Specification and Testing
United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (13th revised edition)

ICS13.300
National Standard of the People's Republic of China
GB19454.2—2004
Safety code for inspection of portable tanks for dangerous goods—Performance inspection
Promulgated on March 4, 2004
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
Implementation on October 1, 2004
Chapter 4, Chapter 5 and Chapter 6 of this standard are mandatory, and the rest are recommended. GB19454.2-2004
The degree of consistency between this standard and the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (13th revised edition) is non-equivalent. Its relevant technical content is consistent with that in the model regulations. Editorial modifications have been made to the standard text format in accordance with GB/T1.1-2000. This standard is proposed and managed by the National Technical Committee for Standardization of Dangerous Chemicals Management (SAC/TC251). The responsible drafting unit of this standard is the Dangerous Goods Central Laboratory of the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. The participating drafting units of this standard are: Tianjin Exit-Entry Inspection and Quarantine Bureau, Asia-Pacific Dangerous Goods Association, and Jiangnan University. The main drafters of this standard are: Wang Libing, Li Ningtao, Xiang Xuejie, Zhang Jiangping, Li Dequan, and Zhang Yong. This standard is formulated for the first time.
1 Scope
Safety specification performance inspection of portable tanks for dangerous goods
This standard specifies the requirements, tests and inspection rules for portable tanks for dangerous goods. GB19454.2—2004
This standard applies to the inspection of portable tanks for dangerous goods of Class 3 to Class 9 in the classification of dangerous goods for transportation. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For any document with a date, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any document without a date, the latest version shall apply to this standard. GB19454.1-2004 General Rules for Safety Inspection of Portable Tanks for Dangerous Goods ISO 1496-3:1995 Freight Contalners Specification and Testing United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (13th revised edition) 3 Terms and Definitions
The terms and definitions established in GB19454.1-2004 apply to this standard. 4 Requirements
4.1 The shell and equipment of each portable tank shall be inspected and tested before being put into use for the first time (initial inspection and test), and then inspected and tested every 5 years (5-year periodic inspection and test), and intermediate periodic inspection and test shall be carried out at the midpoint of the 5-year periodic inspection and test (2.5-year periodic inspection and test). 2.5 Annual inspection and testing may be carried out within three months of the specified date. Exceptional inspection and testing shall be carried out as necessary in accordance with 4.6, regardless of the time of the last periodic inspection and testing. 4.2 The initial inspection and testing of portable tanks shall include a check of the design characteristics, an internal and external inspection of the portable tank and its accessories, and a pressure test taking into account the substances to be transported. Before the portable tank is put into service, a leak test and a test of the proper functioning of all auxiliary equipment shall also be carried out. If the shell and its accessories are pressure tested separately, they shall be tested for leaks together after assembly. 4.35 Annual periodic inspection and testing shall include internal and external inspections and generally also hydraulic tests. For tanks used only for the transport of solid substances other than toxic or corrosive substances that do not liquefy during transport, the hydraulic test may be replaced by an appropriate pressure test at a pressure of 1.5 times the maximum allowable working pressure, subject to the approval of the competent authority. Outer casings, insulation, etc. shall only be removed to the extent that the condition of the portable tank can be evaluated. If the shell and equipment are pressure tested separately, they shall be tested for leaks together after assembly. 4.4 The 2.5-year intermediate periodic inspection and test shall at least include internal and external inspection of the portable tank and its accessories, leak-proof test and test of the proper operation of all auxiliary equipment, taking due account of the substances to be transported. Outer packaging, insulation, etc. shall only be removed to the extent that the condition of the portable tank can be evaluated. For portable tanks dedicated to the transport of one substance, the competent authority or its authorized unit may be exempted from the 2.5-year internal inspection or replace it with other test methods or inspection procedures of the competent authority. 4.5 Portable tanks shall not be loaded and delivered after the expiration date of the last 5-year or 2.5-year periodic inspection and test required by Article 4.1. However, portable tanks loaded before the expiration date of the last periodic inspection and test may be transported within a period not exceeding 3 months after that expiration date. In addition, portable tanks may be transported after the expiration date of the most recent periodic test and inspection under the following circumstances:
a) after emptying and before cleaning, so that the next required test or inspection can be carried out before refilling;1
GB19454.2--2004
b) unless otherwise approved by the competent authority, within a period of no more than 6 months after the expiration date of the most recent periodic test or inspection, so that dangerous goods can be returned for proper disposal or recycling. This exemption should be mentioned in the transport document. 4.6 Exceptional inspections and tests should be carried out when damaged or corroded areas or leakage, or other conditions indicating defects that may affect the integrity of the portable tank are visible on the portable tank. The extent of the exceptional inspections and tests depends on the degree of damage or deterioration of the portable tank. Exceptional inspections and tests should at least include the 2.5-year inspection and test items specified in 4.4. 4.7 The internal and external inspection of the portable tank should ensure: a) The tank shell is inspected for erosion, corrosion, scratches, dents, deformation, weld defects or any other conditions that may make the portable tank unsafe for transportation, including leakage; b) The pipelines, valves, heating/cooling systems and gaskets are inspected for corroded areas, defects or any other conditions that may make the portable tank unsafe for loading, unloading or transportation, including leakage; the manhole cover fastening devices are working properly and there is no leakage in the manhole cover or gasket; c) The bolts or nuts on the flange connection or pipe cover are replaced if missing, and loose ones are retightened; d) All emergency devices and valves are free from corrosion, deformation and any damage or defects that may prevent them from functioning properly. Remote closing devices and self-closing stop valves shall be proved to be in normal working order through operation; if there is a liner, it shall be inspected according to the standards provided by the liner manufacturer; f)
The markings on the portable tank are legible and meet the applicable requirements; the frame, support and lifting devices of the portable tank are in good condition. h)
4.8 If one of the inspection and test contents is a pressure test, the test pressure shall be the value indicated on the portable tank data plate. The shell, pipeline or equipment of the portable tank shall be checked for leakage under pressurized state. 4.9 All cutting, spraying or welding operations on the shell shall be approved by the competent authority or its authorized unit in accordance with the pressure vessel rules based on which the shell is manufactured. After the operation is completed, a pressure test shall be carried out according to the original test pressure. 4.10 If any signs of unsafe conditions are found, the portable tank shall not be reused until it is repaired and retested. 4.11
The performance test requirements of portable tanks are shown in Table 1. Table 1 Performance test requirements
Performance test items
Impact test
Pressure test
Leakage test
Hydraulic test
5 Tests
5.1 Test items
Performance test requirements
No loss of contents, no deformation of the portable tank that endangers transportation safety. All samples have no leakage, no deformation of the portable protective body, and no leakage of all samples.
All samples have no leakage, and the portable tank has no deformation. The performance test items of the portable tank are shown in Table 1. 5.2 Test content
5.2.1 Impact test
5.2.1.1 For portable tanks defined in the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (13th revised edition), each design shall have a prototype sample for impact test 5.2.1.2 Test equipment and methods
Should comply with the requirements of the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (13th revised edition). 5.2.1.3 Test impact force
The prototype portable tank shall prove that it can withstand the force generated by an impact of not less than 4 times (4G) the maximum permissible total mass of a fully loaded portable tank within the duration of a typical mechanical shock in railway transportation. 2
5.2.2 Pressure test
5.2.2.1 Test equipment: airtight pressure test machine or other test equipment that achieves the same effect. GB 19454.2—2004
5.2.2.2 Test pressure: The test pressure should be the value indicated on the data plate of the portable tank. The shell, pipeline or equipment of the portable tank should be checked for leakage under pressurized state. 5.2.2.3 Test method: Start the airtight pressure test machine and apply pressure to the tank continuously and evenly. The tank, including their closures, should withstand the specified constant pressure for 5 minutes.
5.2.3 Leakage test
5.2.3.1 Test equipment: water injection pump or other test equipment that achieves the same effect. 5.2.3.2 Test method: Start the water injection pump and fill the tank with water continuously and evenly. Check whether the shell, pipeline or equipment of the portable tank has any leakage.
5.2.4 Hydraulic test
5.2.4.1 Test equipment: hydraulic testing machine or other test equipment that achieves the same effect. 5.2.4.2 Test pressure: The test pressure should be the value indicated on the data plate of the portable tank. The shell, pipeline or equipment of the portable tank should be checked for leakage under pressurized state. 5.2.4.3 Test method: Start the hydraulic testing machine, apply hydraulic pressure to the tank continuously and evenly, open the exhaust valve at the same time, remove the residual gas in the test container, and then close the exhaust valve. The tank body including their closures should withstand the specified constant hydraulic pressure for 5 minutes. Inspection rules
The manufacturer should ensure that the portable tanks produced by it comply with the provisions of this standard, and the relevant inspection departments shall inspect them according to this standard. The user has the right to request acceptance inspection for the received products according to the provisions of this standard. 6.1 Inspection items
Inspect each item according to the requirements of Chapter 4 and Chapter 5 of this standard. 6.2 Conditions for performance inspection
Performance inspection should be carried out for portable tanks in any of the following situations: before first use;
b) before use;
2.5-year periodic inspection and test;
d) 5-year periodic inspection and test;
Exception inspection and test;
After formal production, if there are major changes in structure, materials, and processes, which may affect product performance. If there are only slight differences between the portable tank and its design fbzxz.net
type, such as a slight reduction in external dimensions, etc., selective testing may be allowed for this portable tank; - When the product is resumed after a long period of suspension; - When the results of the export inspection are significantly different from the results of the last performance inspection; - When the national quality supervision agency proposes to conduct performance inspection. 6.3 Judgment rules
Inspect item by item according to the requirements of the standard. If one sample of each item fails, the item is judged to be unqualified. If one item fails, the batch of products is assessed to be unqualified.
6.4 Processing of unqualified batches
After the portable tanks in the unqualified batch are eliminated, they will be submitted for inspection again with the same strictness.
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