This standard specifies the requirements, marking, performance test and use identification of portable tanks for dangerous goods. This standard applies to the inspection of portable tanks for dangerous goods from Class 3 to Class 9. GB 19454-2009 Safety Specification for Inspection of Portable Tanks for Dangerous Goods GB19454-2009 Standard download decompression password: www.bzxz.net
This standard specifies the requirements, marking, performance test and use identification of portable tanks for dangerous goods. This standard applies to the inspection of portable tanks for dangerous goods from Class 3 to Class 9.
Chapter 5, Chapter 6, Chapter 7 and Chapter 8 of this standard are mandatory, and the rest are recommended.
This standard replaces GB19454.1-2004 "General Rules for Safety Specifications for Portable Tanks of Dangerous Goods", GB19454.2-2004 "Performance Test for Safety Specifications for Portable Tanks of Dangerous Goods", and GB19454.3-2004 "Identification of Use of Safety Specifications for Portable Tanks of Dangerous Goods".
The main changes between this standard and the above three standards are as follows:
---Some technical contents have been modified to make the technical contents of the standard related to packaging completely consistent with the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition);
---Editorial changes 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: Tianjin Entry-Exit Inspection and Quarantine Bureau.
The drafting unit of this standard: Hunan Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this standard: Wang Libing, Li Ningtao, Feng Zhiwei, Zhao Qing, Zhang Yuan, Zhang Yong.
The previous versions of the standards replaced by this standard are:
---GB19454.1-2004
; ---GB19454.2-2004;
---GB19454.3-2004.

The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced 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 referenced document, the latest version shall apply to this standard.
GB/T2828.1 Sampling procedures for inspection by attributes Part 1: Sampling plan for batch inspection based on acceptance quality limit (AQL)
GB/T4122.1 Packaging terms Part 1: Basics
GB19434 Safety rules for inspection of intermediate bulk containers for dangerous goods
GB19270 Safety rules for inspection of packages for dangerous goods transported by water
ISO14963 Freight containers series 1. Specifications and tests Part 3: Tank containers for liquids and gases
ISO41261 Safety Valves
United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition)

ICS13.300
National Standard of the People's Republic of China
GB19454—2009
Replaces GB19454.1—2004GB19454.2—2004, GB19454.3—2004Safety code for inspection of portable tanks for dangerous goodsIssued on 2009-06-21
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of ChinaAdministrative Committee of Standardization of the People's Republic of China
Implementation on 2010-05-01
Chapter 5, Chapter 6, Chapter 7 and Chapter 8 of this standard are mandatory, and the rest are recommended. GB19454—2009
This standard replaces GB19454.1—2004 "General Rules for Safety Specifications for Portable Tanks of Dangerous Goods", GB19454.2—2004 "Performance Test for Safety Specifications for Portable Tanks of Dangerous Goods", and GB19454.3—2004 "Application Identification for Safety Specifications for Portable Tanks of Dangerous Goods".
The main contents of the revisions of this standard and the above three standards are as follows: some technical contents have been revised to make the technical contents of the standard related to packaging completely consistent with the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition); - editorial revisions have been made to the standard text format in accordance with GB/T1.1--2000. This standard was proposed and managed by the National Technical Committee for Standardization of Dangerous Chemicals Management (SAC/TC251). The responsible drafting unit of this standard is: Tianjin Entry-Exit Inspection and Quarantine Bureau. Participating drafting units of this standard: Hunan Exit-Entry Inspection and Quarantine Bureau Main drafters of this standard: Zhu Libing, Li Ningtao, Feng Zhimeng, Zhao Qing, Zhang Yuan, Zhang Yong. The previous versions of the standards replaced by this standard are: - GB19454.1-2004;
-- GB19454.2-2004;
-- GB19454.3-2004.
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1 Scope
Safety specification for inspection of portable tanks for dangerous goods This standard specifies the requirements, marking, performance inspection and use identification of portable tanks for dangerous goods. This standard applies to the inspection of portable tanks for transporting dangerous goods from Class 3 to Class 9. 2 Normative references
GB19454-2009
The clauses in the following documents become the clauses of this standard through the reference of this standard. For any dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard; however, parties to agreements based on this standard are encouraged to investigate whether the latest versions of these documents can be used. For any undated referenced documents, the latest version shall apply to this standard. GB/T 2828.1 Sampling procedures for inspection by attributes Part 1: Sampling plan for batch inspection based on acceptance quality limit (AQL) GB/T 4122.1 Packaging terms Part 1: Basics GB 19434 Safety specifications for inspection of intermediate bulk containers for dangerous goods GB 19270 Safety specifications for inspection of packaging of dangerous goods transported by water ISO 1496-3 Freight containers Series 1. Specifications and tests Part 3: Tank containers for liquids and gases IS 04126-1 Safety valves (Safety Valves) United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition)
3 Terms and definitions
The terms and definitions established in GB/T 4122.1, GB 19434 and GB 19270 and the following terms and definitions apply to this standard. 3.1
portabletanks
Portable tanks
Multimodal tanks with a capacity greater than 450L used to transport substances from Class 3 to Class 9. The shell of the portable tank is equipped with auxiliary equipment and structural devices necessary for the transport of dangerous goods. 3.2
Shell
The part of the portable tank that contains the substances transported (the tank itself), including the opening and its closing devices, but excluding auxiliary equipment or external structural devices.
Serviceequipment
Measuring instruments and loading, unloading, exhaust, safety, heating, cooling and insulation equipment. 3.4
Structuralequipmentstructuralequipment
Reinforcement components, fastening components, protective components and stabilization components on the outside of the shell. 3.5
maximum allowable working pressure
shall not be less than the larger of the following two pressures measured at the top of the shell under working conditions: a) the maximum effective gauge pressure allowed in the shell during loading or unloading; or 1
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GB19454—2009
the designed maximum effective gauge pressure of the shell, which shall not be less than the sum of the following two items: the absolute vapour pressure of the substance at 65°C (or the highest temperature during loading, unloading or transportation for high temperature substances transported at temperatures above 65°C) minus 100 kPa; the partial pressure (kPa) of air and other gases in the unfilled space of the tank, which is determined by the expansion of the liquid caused by the highest temperature of the unfilled space at 65°C and the increase in the average overall temperature by t, -t (t = loading temperature, usually 15°C; t, = 50°C, the highest average overall temperature).
Design pressuredesignpressure
The pressure used in calculations required by recognized pressure vessel rules. The design pressure shall not be less than the greatest of the following pressures: a) The maximum effective gauge pressure allowed in the shell during loading or unloading: or b) The sum of the following three items:
1) The absolute vapor pressure of the substance at 65°C (if it is a high-temperature substance transported at a temperature higher than 65°C, the highest temperature during loading, unloading or transportation) minus 100 kPa; the partial pressure of air and other gases in the unfilled space of the tank (kPa), which is determined by the expansion of the liquid caused by the maximum temperature of the unfilled space at 65°C and the increase in the average overall temperature by t, -t (t = loading temperature, usually 15°C; t, = 50°C, the highest average overall temperature); ||tt ||The discharge pressure determined by the dynamic forces indicated by twice the maximum permissible total mass in the direction of travel multiplied by the acceleration of gravity, the maximum permissible total mass in the horizontal direction perpendicular to the direction of travel (when the direction of travel is unclear, it is twice the maximum permissible total mass) multiplied by the acceleration of gravity, the maximum permissible total mass in the vertical direction upward multiplied by the acceleration of gravity, and the maximum permissible total mass in the vertical direction downward (total load including gravity) multiplied by the acceleration of gravity, but not less than 35kPa; c) Two-thirds of the minimum test pressure value specified in Chapter 4.2 of the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition) applicable to portable tank regulations. 3.7
Test pressuretestpressure
The maximum gauge pressure at the top of the tank shell during the hydraulic test shall not be less than 1.5 times the design pressure. 3.8
Leakproofness test
A test in which the shell and its auxiliary equipment are subjected to an effective internal pressure of not less than 25% of the maximum allowable working pressure by using gas. 3.9
Maximum allowable gross mass The sum of the tare mass (tare weight) of the portable tank and the maximum load allowed for shipment. 3.10
Appraisal lot
A portable tank body produced with the same raw materials, the same structure and the same process is an appraisal lot, referred to as a batch. 4 Classification of dangerous goods
4.1 Dangerous goods are divided into 9 categories according to their hazard or the most important hazard. Some categories are further divided into items. The order of the categories and items is not the order of the degree of hazard. 4.1.1 Class 1: Explosives
—1.1: Substances and articles with a general explosion hazard; 2
h
—1.2: Substances and articles with a projection hazard but no general explosion hazard; GB19454—2009
—1.3: Substances and articles with a combustion hazard and a local explosion hazard or a local projection hazard or both, but no general explosion hazard;
—1.4: Substances and articles that do not present a significant hazard;—1.5: Very insensitive substances with a general explosion hazard:—1.6: Extremely insensitive articles without a general explosion hazard. 4.1.2 Class 2: Gases
—2.1: Flammable gases;
—2.2: non-flammable and non-toxic gases;
——2.3: toxic gases.
4.1.3 Class 3: flammable liquids
4.1.4 Class 4: flammable solids: substances that are prone to spontaneous combustion; substances that emit flammable gases when in contact with water 4.1: flammable solids, self-reactive substances and solid desensitized explosives; 4.2: substances that are prone to spontaneous combustion;
——4.3: substances that emit flammable gases when in contact with water. 4.1.5 Class 5: oxidizing substances and organic peroxides—5.1: oxidizing substances;
——5.2: organic peroxides.
4.1.6 Class 6: toxic and infectious substances—6.1: toxic substances;
6.2: infectious substances.
4.1.7 Class 7: radioactive substances.
4.1.8 Class 8: Corrosive substances.
4.1.9 Class 9: Miscellaneous dangerous substances and articles. 4.2 Classification of dangerous goods packaging
Except for dangerous goods of Classes 1, 2, 7, Items 5.2 and 6.2, the packaging of other types of dangerous goods can be divided into three packaging levels according to the degree of danger, namely:
Packaging Level I
Highly dangerous:
Packaging Level II—Medium dangerous;
Packaging Level III
—Mild dangerous.
The classification of the degree of danger of various types of dangerous goods can be determined through tests on relevant dangerous characteristics. 5 Marking
5.1 Each portable tank should be equipped with a rust-proof metal label permanently fixed on the portable tank in a conspicuous and easily inspected place. If the location of the portable tank label does not allow the label to be permanently fixed to the tank shell, the tank shell should at least be marked with the information required by the pressure vessel regulations. At least the following information shall be indicated on the label by stamping or other similar means:3
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GB19454—2009
Country of manufacture
Country of approval
Name or mark of the manufacturer
Factory serial number
Authorized unit that approved the design
Owner registration number
Year of manufacture
Pressure vessel rules based on which the shell is designed
Test pressure
Maximum allowable working pressure
External design pressure
Design temperature range
Water capacity at 20℃
Water capacity of each compartment at 20℃
Date of first pressure test and inspector
Maximum allowable working pressure of heating/cooling system Shell materials and material standard references Test number
Equivalent thickness of reference steel
Lining material
Date and type of the latest periodic test
Approval number
kPa, gauge pressure
kPa, gauge pressure
kPa, gauge pressure
monthly test pressure
Note: The label should at least include the above content and other content may be added as necessary kPa, gauge pressure
5.2 The following information should be marked on the portable tank or on a metal label firmly fixed on the portable tank: Manufacturer name
Maximum permissible total mass
Mass after unloading (skin)
5.3 If the portable tank is designed to allow loading and unloading on the high seas, the words "Sea Portable Tank" should be marked on a conspicuous plate. The words "Sea Portable Tank" should be written on the label.
5.4 Marking of pressure-relief devices
Each pressure-relief device shall be clearly and permanently marked with: 5.4.1
Set discharge pressure (kPa) or temperature (C); Spring device: Discharge pressure tolerance; Fragile disk: Reference temperature corresponding to the rated pressure; d)
Fusible plug: Temperature tolerance; and
The rated flow capacity of the device expressed in standard m/s. e)
Where practical conditions permit, the following information shall also be indicated: f) Manufacturer's name and relevant product catalog number. 5.4.2
The rated flow capacity marked on the pressure-relief device shall be determined in accordance with ISO4126-1. 5.4.3
The passage leading to the pressure-relief device shall be of sufficient size to allow the material to be discharged to pass to the safety device without restriction. No stop valve shall be installed between the shell and the pressure relief device, unless a double pressure relief device is installed for maintenance or other reasons, and the stop valve of the pressure relief device actually used is locked in the open position, or the stop valves are interlocked so that at least one of the double devices is always in use. There shall be no obstructions at the opening leading to the vent or pressure relief device so as not to restrict or cut off the flow from the shell to the device. If a vent or pipe is used for the outlet of the pressure relief device, the released vapor or liquid shall be discharged to the atmosphere under the condition that the pressure relief device is subjected to minimum back pressure.
6 General requirements
6.1 Portable tanks shall be adequately protected to prevent damage to the shell and auxiliary equipment due to lateral and longitudinal impact and overturning during transportation. Such protection is not required if the shell and auxiliary equipment structure can withstand impact or overturning. 6.2 Some chemically unstable substances can only be transported when necessary measures are taken to prevent dangerous decomposition, metamorphosis or polymerization reactions during transportation. Ensure that the tank does not contain any substances that may promote these reactions. 6.3 The temperature of the outer surface of the tank shell (excluding the opening and its closure device) or the insulation layer should not exceed 70°C during transportation. 6.4 Empty portable tanks that have not been washed and deflated should be handled as if they still contain the original substances. 6.5 Substances that can react dangerously with each other and cause the following situations shall not be transported in separate units connected to the tank shell: a) combustion and/or large amounts of heat;
emission of flammable, toxic or asphyxiating gases; c) formation of corrosive substances;
formation of unstable substances;
dangerous pressure increase.
6.6 Filling degree
6.6.1 Before loading, the shipper shall ensure that suitable portable tanks are used and that the portable tanks are not loaded with materials that may react dangerously with the shell materials, pads, auxiliary equipment and any protective linings to form dangerous products or significantly reduce the strength of these materials.
6.6.2 The loading of portable tanks should not exceed the limits specified in 6.8.3 to 6.8.9. The applicability of 6.8.3, 6.8.4 or 6.8.8 to individual substances is shown in the applicable portable tank instructions or special provisions in Chapter 4 of the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition).
6.6.3 The generally used maximum filling degree (%) is calculated according to formula (1). 6.6.4 For liquids of 6.1 and Class 8 in packing groups I and II and liquids with an absolute saturated vapour pressure exceeding 175 kPa (1.75 bar) at 65°C, the maximum filling degree (%) shall be calculated in accordance with formula (2). 97
Fmx=1+a(t,-t)
Fmx =1+a(t,-t)
-dis-dso
Where:
F—filling degree;
t—average temperature during loading;
thighest overall average temperature during transport;
di5—density of liquid at 15°C;
ds. —density of liquid at 50°C.
.....(2)
...(3)
Note: In formula (1) and formula (2), α is the average volume expansion coefficient of the liquid between the average temperature during loading (tr) and the highest average overall temperature during transportation (tt) (C), and α can be calculated according to formula (3).
6.6.5 The highest average overall temperature (t.) should be 50°C, but lower or higher temperature values ​​may be required when transporting under mild or extreme climatic conditions.
6.6.6 The provisions of 6.8.3 to 6.8.6 do not apply to portable tanks loaded with materials that are kept at a temperature higher than 50°C during transportation (such as using a heating device). Portable tanks equipped with a heating device should use a temperature regulator to ensure that the maximum filling degree is not greater than 95% of its total volume at any time during transportation. 6.6.7 The maximum loading degree (%) of liquids transported under high temperature conditions is calculated according to formula (4): Fmx = 95
Where:
d—the density of the liquid at the average temperature of the loading process; d—the density at the highest average overall temperature of the transportation process. 6.6.8 Portable tanks shall not be transported in the following circumstances:(4
a) When loading liquids with a viscosity of less than 2680 mm/s at 20°C or the maximum temperature of the substance during the transport of heated substances and the filling degree is greater than 20% but less than 80%, unless the shell of the portable tank is divided by partitions or pressure regulating plates into several compartments with a capacity not exceeding 7500L:
b) When there are residual loading materials adhering to the outside of the shell or its auxiliary equipment; c) When leakage or damage may affect the integrity of the tank or its lifting and fastening accessories. 6.6.9 The forklift socket of the portable tank should be closed when the tank is loaded. However, it does not apply to portable tanks that do not need to be equipped with a forklift socket closing device.
6.7 Additional provisions for the transportation of Class 3 substances in portable tanks: 6.7.1 All portable tanks intended for the transportation of flammable liquids should be closed tanks and equipped with pressure relief devices. 6.7.2 For portable tanks intended only for land transportation, the relevant regulations for land transportation may allow the use of open exhaust systems. 6.8 Additional provisions for the transport of substances in 5.2 and self-reactive substances in 4.1 in portable tanks: 6.8.1 The following provisions apply to portable tanks for the transport of Type F organic peroxides or Type F self-reactive substances with a self-accelerating decomposition temperature of 55°C or higher. If these provisions conflict with the provisions in the design and manufacturing requirements, these provisions shall prevail. 6.8.2 Additional provisions for the transport of organic peroxides or self-reactive substances with a self-accelerating decomposition temperature below 55°C in portable tanks shall be specified by the competent authority.
6.8.3 The portable tank shall be designed to withstand a test pressure of at least 0.4MPa. 6.8.4 The portable tank shall be equipped with a temperature sensing device. 6.8.5 The portable tank shall be equipped with a safety pressure relief device and an emergency pressure relief device. A vacuum pressure relief device may also be used. The pressure at which the safety pressure relief device is activated shall be determined based on the properties of the substance and the structural characteristics of the portable tank. Fusible plugs are not allowed on the tank shell. The safety pressure relief device shall be equipped with a spring valve to prevent the accumulation of decomposition products and vapors at 50°C in the portable body. The capacity of the pressure relief valve and the pressure at which the air begins to flow out shall be determined based on the test results specified in Chapter 4.2 of the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations (15th revised edition). The pressure at which the air begins to flow out shall not cause the liquid to flow out of the valve when the portable tank capsizes. 6.8.6 The emergency pressure relief device may be spring-loaded or frangible or a combination of both, and shall be able to discharge all the decomposition products and vapors produced within not less than 1 hour when the tank is completely engulfed by fire. For details, see 4.2.1.13.8 of the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations (15th revised edition). The pressure value at which the emergency pressure relief device begins to flow out shall be higher than the value specified in 5.10.8 of the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations (15th revised edition) and determined based on the test results described in 5.10.1 of the United Nations Recommendations on the Transport of Dangerous Goods Model Regulations (15th revised edition). The dimensions of the emergency pressure relief device shall be designed to ensure that the maximum pressure in the portable tank never exceeds the test pressure of the tank. 6.8.7 For insulated tanks, the loss of insulation material of 1% of the tank surface area shall be assumed when determining the capacity and positioning of the emergency pressure relief device.
6.8.8 A fire shield shall be provided between the vacuum pressure relief device and the spring. It shall be considered that the fire shield will reduce the pressure relief capacity. 6.8.9 Auxiliary equipment such as valves and external pipes shall be arranged so that no substance will remain in them after the portable tank is filled. 6.8.10 The tank may be insulated or protected by a sunshade. If the self-accelerating decomposition temperature of the material in the portable tank is 55°C or below, or the portable tank is of aluminum construction, the tank shall be fully insulated. The outer surface of the tank shall be painted white or shiny metal. 6
6.8.11 The filling degree shall not exceed 90% at 15°C. 6.8.12 The marking shall include the UN number, technical name and approved concentration of the substance. GB19454—2009
6.8.13 Organic peroxides and self-reactive substances specified in the portable tank specification of the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition) can be transported in portable tanks. 6.9 Use of portable tanks to transport Class 7 materials: 6.9.1 Portable tanks used to transport radioactive materials shall not be used to transport other goods. 6.9.2 The filling degree of portable tanks shall not exceed 90% or any other value approved by the competent authority. 6.10 The safety pressure relief device of portable tanks used to transport Class 8 materials shall be inspected regularly, and the interval shall not exceed 1 year. 7 Performance inspection
7.1 Requirements
7.1.1 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). The two-and-a-half-year inspection and test may be carried out within three months of the specified date. When damage, corrosion, leakage or other defects that may affect the integrity of the portable tank are visible, an exceptional inspection and test shall be carried out, regardless of the time of the last periodic inspection and test. 7.1.2 The initial inspection and test of the portable tank 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 use, a leak test and a test of the good working order 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. 7.1.3 The five-year periodic inspection and test shall include internal and external inspections and generally also a hydraulic test. For tanks used only for the transportation of solid substances other than toxic or corrosive substances that will not liquefy during transportation, the hydraulic test may be replaced by an appropriate pressure test at a pressure of 1.5 times the maximum allowable working pressure, but this must be approved by the competent authority. Outer casings, insulation, etc. should 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 should be tested for leaks together after assembly. 7.1.4 The two-and-a-half-year intermediate periodic inspection and test should at least include internal and external inspections of the portable tank and its accessories, leak tests, and tests on the proper functioning of all auxiliary equipment, taking due account of the substances to be transported. Outer packaging, insulation, etc. should 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 two-and-a-half-year internal inspection or replace it with other test methods or inspection procedures of the competent authority. 7.1.5 Portable tanks shall not be loaded and delivered after the expiration date of the last five-year or two-and-a-half-year periodic inspection and test required by 7.1.1. However, portable tanks loaded before the expiration date of the last periodic inspection and test may be transported within a period not exceeding three months after that expiration date. In addition, portable tanks may be transported after the expiration date of the most recent periodic test and inspection in the following circumstances:
a) after being emptied but before being cleaned, in order to carry out the next required test or inspection before refilling; b) unless otherwise approved by the competent authority, within a period not exceeding six months after the expiration date of the most recent periodic test or inspection, in order to return dangerous goods for proper disposal or recovery. This exemption should be mentioned in the transport document. 7.1.6
Exceptional inspection and testing 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 inspection and testing depends on the degree of damage or deterioration of the condition of the portable tank. The exceptional inspection and testing should include at least the two and a half years inspection and test items specified in 7.1.4. 7.1.7 The internal and external inspection of the portable tank should ensure: a) the tank shell is inspected for any erosion, corrosion, scratches, dents, deformation, weld defects or any other conditions that may make the portable tank unsafe for transportation, including leakage; the pipes, valves, heating/cooling systems and gaskets are inspected for any corroded areas, defects or any other conditions that may make the portable tank unsafe for transportation, including leakage; b) the portable tank cannot be safely loaded, unloaded or transported, including leakage; the manhole cover fastening device is 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. The remote closing device and the self-closing stop valve should be proved to be working properly through operation; f)
If there is a lining, it should be inspected according to the standards provided by the lining manufacturer; g)
The markings on the portable tank are clear and legible and meet the applicable requirements; h)
The frame, support and lifting equipment of the portable tank are in good condition. 7.1.8 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 portable tank shell, pipeline or equipment shall be checked for leakage under pressurized state. 7.1.9 All cutting, spraying or welding operations on the tank shell shall be approved by the competent authority or its authorized unit with reference to the pressure vessel rules based on which the tank shell is manufactured. After the operation is completed, a pressure test shall be carried out according to the original test pressure. 7.1.10
If any signs of unsafe conditions are found, the portable tank shall not be reused until it is repaired and passed the re-test. The performance test requirements for portable tanks are shown in Table 1. 7.1.111
Table 1 Performance test requirements
Performance test items
Impact test
Pressure test
Leakage test
Hydraulic test
7.2 Tests
7.2.1 Test items
Performance test requirements
No loss of contents. No deformation of the portable tank that endangers transportation safety. No leakage in all specimens and no deformation of the portable tank. No leakage in all specimens and no deformation of the portable tank. The performance test items for portable tanks are shown in Table 1. 7.2.2 Test contents
7.2.2.1 Impact test
7.2.2.1.1 For portable tanks that comply with the definition of the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition), each design shall have a prototype sample for impact test. 7.2.2.1.2 Test equipment and methods
Should comply with the requirements of the United Nations "Recommendations on the Transport of Dangerous Goods Model Regulations" (15th revised edition). 7.2.2.1.3 Test impact force
The prototype portable tank should be able to withstand the force generated by an impact of not less than 4 times the maximum permissible gross weight of the fully loaded portable tank (4G) within the duration of the typical mechanical impact of rail transportation. 7.2.2.2 Pressure test
7.2.2.2.1 Test equipment wwW.bzxz.Net
Airtight pressure testing machine or other test equipment that achieves the same effect. 7.2.2.2.2 Test pressure
The test pressure should be the value indicated on the portable tank data plate. The portable tank shell, pipeline or equipment should be checked for leaks under pressurized conditions.
7.2.2.2.3 Test method
Start the airtight pressure test machine and apply pressure to the tank continuously and evenly. The tank body including its closure shall withstand the specified constant pressure for 5 minutes. 7.2.2.3 Leakage test
7.2.2.3.1 Test equipment
Water filling pump or other test equipment that achieves the same effect. 8
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7.2.2.3.2 Test method
GB19454—2009
Start the water filling pump and fill the tank with water continuously and evenly. Check whether the tank shell, pipes or equipment of the portable tank body have leakage. 7.2.2.4 Hydraulic test
7.2.2.4.1 Test equipment
Hydraulic testing machine or other test equipment that achieves the same effect. 7.2.2.4.2 Test pressure
The test pressure shall be the value indicated on the data plate of the portable tank. The shell, pipeline or equipment of the portable tank shall be checked for leakage under pressurized state.
7.2.2.4.3 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 tanks, including their closures, shall withstand the specified constant hydraulic pressure for 5 minutes. 7.3 Inspection rules
7.3.1 The manufacturer shall ensure that the portable tanks produced comply with the provisions of this standard, and shall be inspected by the relevant inspection departments in accordance with this standard. The user has the right to request acceptance inspection of the received products in accordance with the provisions of this standard. 7.3.2 Inspection items: Inspect item by item according to the requirements of 7.1 and 7.2. 7.3.3 Conditions for performance inspection
Performance inspection should be carried out for portable tanks in any of the following situations: before first use;
before use;
regular inspection and test for one and a half years;
regular inspection and test for 1-5 years;
exceptional inspection and test;
after formal production, when there are major changes in structure, materials and process, which may affect product performance. If there are only minor differences between the portable tank and its design 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 long-term suspension; - when the results of the final inspection are significantly different from the results of the last performance inspection; - when the national quality supervision agency proposes to carry out performance inspection. 7.3.4 Judgment rules
Inspect item by item according to the requirements of the standard. If one sample fails in each item, the item is judged to be unqualified. If one item fails, the batch of products is assessed to be unqualified.
8 Identification for use
8.1 Requirements
8.1.1 General requirements
8.1.1.1 Requirements for the appearance of portable tanks; a) The marks, logos and dangerous goods color labels cast, printed or pasted on the portable tanks shall be accurate and clear and comply with the relevant requirements of Chapter 6;
The surface of the portable tanks shall be clean and no residue, pollution or leakage is allowed. b)
8.1.1.2 The portable tanks selected by the user shall be compatible with the properties of the dangerous goods contained therein, and their performance shall comply with the provisions of Chapter 7. 8.1.1.3 In the following cases, a dangerous goods classification, grading and dangerous characteristics inspection report issued by an inspection agency recognized by the national quality supervision, inspection and quarantine department shall be provided:
a) First transportation or production;
b) First export;
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GB19454—2009
c) When the national quality inspection department deems it necessary. 8.1.1.4 When used to transport closed flash point ≤60℃, or for transporting powders prone to dust explosion, appropriate anti-static measures shall be taken.
8.1.1.5 When general liquid dangerous goods are filled to less than 98% of the total volume of the portable tank, the reserved volume of the container shall be determined according to the expansion coefficient of liquid goods with a large expansion coefficient. Solid dangerous goods shall be filled to less than 95% of the volume of the portable tank, and the remaining space shall be filled or cushioned as required.
8.1.1.6 When liquid or inert gas is used to protect dangerous goods, the liquid or inert gas shall be able to effectively ensure the safety of the dangerous goods. 8.1.1.7 Dangerous goods and the portable tank in contact with them shall not undergo any chemical reaction that affects the strength of the container and causes danger. 8.1.1.8 The closure of the portable tank shall be tightly fitted and equipped with appropriate sealing rings to ensure that there is no leakage of dangerous goods during transportation.
8.1.2 Design and manufacturing requirements
8.1.2.1 The shell, fittings and pipes of the portable tank shall be made of materials with the following properties: a) Basically not corroded by the substances to be transported;
Appropriately passivated or neutralized by chemical action; or c) Have anti-corrosion materials directly bonded to the shell, or the lining is bonded by equivalent methods. 8.1.2.2 Gaskets shall be made of materials that are not corroded by the substances to be transported. 8.1.2.3 Where the shell is lined, the lining material shall be substantially impervious to corrosion by the material to be transported. The material shall be uniform, non-porous, sufficiently elastic and have thermal expansion characteristics compatible with the shell. The lining of each shell, shell fitting and pipe shall be continuous and extend to the surrounding surface of each flange. If external fittings are welded to the tank, the lining shall be continuous over the surrounding surface of the fitting and the external flange. 8.1.2.4 The joints and seams of the lining shall be joined together by fusion or other equally effective means. 8.1.2.5 The formation of a battery effect resulting from contact between dissimilar metals and causing corrosion of the metals shall be avoided. 8.1.2.6 The materials of the portable tank and any of its devices, gaskets and accessories shall not have an adverse effect on the contents of the tank. The portable tank shall be designed and supported to provide a secure support during transportation and shall have suitable lifting and fastening devices. 8.1.2.71

8.1.2.8 The design of the portable tank should at least be able to withstand the internal pressure generated by the contents and the static loads, dynamic loads and thermal loads during normal loading and unloading and transportation without causing leakage of the contents. The design should take into account the fatigue effects caused by repeated application of these loads during the expected service life of the portable tank.
8.1.2.9 For portable tanks intended to be used at sea, the dynamic stresses imposed by loading and unloading at sea should be taken into account. 8.1.2.10 For portable tanks intended for transport of Class 3 substances, including substances at high temperatures transported at or above their flash point, the vacuum relief device used shall be capable of preventing flames from directly penetrating the shell. Otherwise, the shell of the portable tank shall be capable of withstanding internal explosion caused by flames penetrating the shell without leakage. 8.1.2.11 Portable tanks used for transporting Class 3 substances, including substances at high temperatures transported at or above their flash point, shall be capable of being grounded for anti-static purposes. Measures shall be taken to prevent dangerous electrostatic discharges. 8.1.2.12 The ignition temperature of the insulation layer in direct contact with the shell of the tank intended for transport of substances at high temperatures shall be at least 50°C higher than the maximum design temperature of the tank.
8.1.3 Auxiliary equipment
8.1.3.1 Auxiliary equipment shall be installed in such a way that it cannot be torn off or damaged during loading, unloading and transportation. If the connection between the frame and the shell allows relative movement between the components, the equipment shall be installed in such a way that relative movement is allowed without damaging the working parts. External unloading fittings (pipe sockets, closing devices), internal stop valves and their supports shall be protected to prevent the risk of being dislodged by external forces (e.g. by shearing materials). Filling and unloading devices (including flanges or threaded plugs) and any protective caps shall be capable of preventing inadvertent opening. 8.1.3.2 All shell openings used for loading or unloading of portable tanks shall be equipped with manual stop valves located as close to the shell as possible. Openings other than openings to venting or safety pressure relief devices shall be equipped with stop valves or another suitable closing device located as close to the shell as possible.
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