SN/T 0987.4-2013. Rules for performance inspection of IBCs for export dangerous goods-Part 4 : Rigid plastics IBCs.
1 Scope
SN/T 0987.4 specifies the definition, classification, requirements, sampling, inspection and disposal of unqualified batches
of rigid plastic intermediate bulk containers for export dangerous goods. SN/T 0987.4 is applicable to the performance inspection of rigid plastic intermediate bulk containers for export dangerous goods.
2 Normative references
The following documents are indispensable for the application of this document. For all dated references, only the dated version applies to this document. For all undated references, the latest version (including all amendments) applies to this document.
SN/T 0370.1 Inspection Procedure for Export Dangerous Goods Packages Part I: General
SN/T 0987.1 Inspection Procedure for Export Dangerous Goods Intermediate Bulk Containers Part 1: General
Recommendations on the Transport of Dangerous Goods Model Regulations (United Nations, 17th revised edition)
3 Terms and Definitions
The following terms and definitions defined in SN/T 0370.1 and SN/T 0987.1 apply to this document:
3.1 Inspection lot
A certain number of intermediate bulk containers for dangerous goods produced with the same raw materials, the same process and the same structure and brought together.
3.2 Rigid plastics IBCs
Intermediate bulk containers consisting of a rigid plastic box, which may have structural devices and appropriate auxiliary equipment.
4 Classification
According to the (Recommendations and Model Regulations on the Transport of Dangerous Goods), there are several types
of rigid plastic intermediate bulk containers: a) 11H1: Rigid plastic intermediate bulk containers with structural equipment designed to bear the entire load on them when stacked, used for transporting solid substances by gravity loading and unloading.
b) 11H2: Freestanding rigid plastic intermediate bulk containers for transporting solid substances by gravity loading and unloading. c
) 21H1: Rigid plastic intermediate bulk containers with structural equipment designed to bear the entire load on them when stacked, used for transporting solid substances by pressure loading and unloading.
This part of SN/T 0987 specifies the definition, classification, requirements, sampling, inspection and non-conforming disposal of rigid plastic intermediate bulk containers for export dangerous goods. This part applies to the performance inspection of rigid plastic intermediate bulk containers for export dangerous goods.

People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard SN/T0987.4—2013
Replaces SN/T0987.4-2001
Rules for performance inspection of IBCs for export dangerous goods Part 4: Rigid plastic intermediate bulk containers Goods-Part4:RigidplasticsIBCs
2013-11-06 Issued
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
2014-06-01 Implementation
SN/T0987 "Inspection Procedure for Intermediate Bulk Containers of Dangerous Goods for Export" is divided into 8 parts: Part 1: General Principles;
Part 2: Identification for Use;
Part 3: Composite Intermediate Bulk Containers;
Part 4: Rigid Plastics Intermediate Bulk Containers;
Part 5: Wooden Intermediate Bulk Containers;
Part 6: Flexible Intermediate Bulk Containers;
Part 7: Fiberboard Intermediate Bulk Containers: Part 8: Metal Intermediate Bulk Containers.
This part is Part 4 of SN/T0987.
This part was drafted in accordance with the rules given in GB/T1.1-2009. SN/T0987.4-2013
This part replaces SN/T0987.4-2001 "Performance Test Procedure for Intermediate Bulk Containers for Export Dangerous Goods"
Compared with SN/T0987.4-2001, the main technical changes of this part are as follows: the referenced documents are updated, and the relevant international dangerous goods regulations are added as referenced documents after the referenced standards; the definition of inspection lot is modified;
The classification of rigid plastic intermediate bulk containers is removed from the original definition part, and Chapter 4 classification is added: the test sequence of the test method and the requirements and test contents of the vibration test and the qualified judgment are added. This part is proposed and managed by the National Certification and Accreditation Administration. Rigid plastic
The drafting units of this part: Tianjin Exit-Entry Inspection and Quarantine Bureau of the People's Republic of China, Jiangxi Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this part are Li Ningtao, Jiang Xuefeng, Gao Jian, Ding Lan, Tian Jiayin and Zhang Yong. The previous versions of the standard replaced by this part are: SN/T0987.4—2001.
1 Scope
Inspection procedures for intermediate bulk containers of dangerous goods for export Part 4: Rigid plastic intermediate bulk containers SN/T0987.4—2013
This part of SN/T0987 specifies the definition, classification, requirements, sampling, inspection and disposal of unqualified batches of rigid plastic intermediate bulk containers for dangerous goods for export.
This part applies to the performance inspection of rigid plastic intermediate bulk containers for dangerous goods for export 2 Normative references
The following documents are indispensable for the application of this document. For all dated references, only the dated version applies to this document. For all undated references, the latest version (including all amendments) applies to this document. Inspection regulations for export dangerous goods packaging Part 1: General SN/T0370.1
Inspection regulations for export dangerous goods intermediate bulk containers Part 1: General SN/T0987.1
Recommendations on the transport of dangerous goods
3 Terms and definitions
Model Regulations (United Nations, 17th revised edition) SN/T0370.1 and SN/T0987.1 defined and the following terms and definitions apply to this document: 3.1
inspection lot
inspection lot
A certain number of intermediate bulk containers for dangerous goods produced with the same raw materials, the same process and the same structure and brought together. 3.2
rigid plastics intermediate bulk containers rigidplastics IBCs Intermediate bulk containers consisting of a rigid plastic box, which may have structural devices and appropriate auxiliary equipment. 4 Classification
According to the "Recommendations on the Transport of Dangerous Goods Model Regulations", there are several types of rigid plastic intermediate bulk containers: 11H1: Rigid plastic intermediate bulk containers with structural equipment designed to bear the full load on them when stacked, used to transport solid substances that are loaded and unloaded by gravity a
b)
11H2: Freestanding rigid plastic intermediate bulk containers for solid substances that are loaded and unloaded by gravity. 21H1: Rigid plastic intermediate bulk containers with structural equipment designed to bear the full load on them when stacked, used to transport solid substances that are loaded and unloaded by pressure c
. 21H2: Freestanding rigid plastic intermediate bulk containers for solid substances that are loaded and unloaded by pressure. d)
31H1: Rigid plastic intermediate bulk containers with structural equipment designed to bear the full load on them when stacked, used to transport liquids e
.
31H2: Independent rigid plastic intermediate bulk container for transporting liquids. 1
SN/T0987.4—2013
5 Requirements
5.1 The container body shall be made of suitable plastic materials with known specification standards and its strength shall be sufficient for its capacity and purpose. The manufacturing material shall be sufficient to resist aging and the substances contained. In some cases, due to degradation caused by ultraviolet radiation, its low temperature performance shall be considered as necessary. Under normal transportation conditions, the diffusion of any contained substances shall not be dangerous. 5.2 When ultraviolet protection is required, the method of adding carbon black or other suitable pigments or inhibitors shall be adopted. These additives shall be compatible with the contents and remain effective throughout the service life of the container. If the carbon black, pigment or inhibitor used is different from the additive used during the manufacturing design type inspection, re-inspection can be exempted as long as the content of carbon black, pigment or inhibitor does not adversely affect the physical properties of the manufacturing material.
5.3 In addition to the use of additives to protect against ultraviolet rays, the composition of plastic materials may also include some additives for other purposes, but these additives should not have an adverse effect on the physical and chemical properties of the materials. 5.4 Except for the residual materials and their regeneration produced by the same production process, recycled old materials should not be used to manufacture rigid plastic intermediate bulk containers.
5.5 Intermediate bulk containers used to transport liquids should be equipped with a pressure relief device, which should be able to discharge sufficient steam to prevent the main body of the intermediate bulk container from rupturing when the internal pressure of the container exceeds its hydraulic test pressure. This can be achieved by using conventional pressure relief devices or other structural means.
5.6 Each intermediate bulk container intended to contain liquids should be subjected to a sealing test when it is used for the first time and when it is put back into use after repair. During the test, the intermediate bulk container does not need to be equipped with its own closure device. 6 Sampling
6.1 Rigid plastic intermediate bulk containers produced with the same raw materials, the same process and the same structure are considered as one inspection batch. 6.2 If any of the raw materials, processes or structures are changed, a new application for inspection is required. If there are only slight differences between the intermediate bulk container and its design type, such as a slight reduction in external dimensions, selective testing may be allowed for this intermediate bulk container. 6.3 See Table 1 for the number of samples. The number of samples may be reduced without affecting the test results. One sample may be subjected to multiple tests at the same time in the order of the test items in Table 2. Table 1 Number of samples
Test items
Vibration test
Bottom lifting test
Top lifting test
Stacking test
Leakage test
Hydraulic test
Drop test
Sampling method
Randomly select from the entire inspection batch.
Sampling number
Unit: piece
Performance test
Test items
Test items see Table 2. The inspection sequence is from top to bottom in Table 2. Table 2 Inspection items
Inspection items
Vibration test
Bottom lifting test
Top lifting test
Stacking test
Leakage test
Hydraulic test
Drop test
11H1, 11H2
Not required
Required.
Not required
Not required
Intermediate bulk container type
21H1.21H2
Not required
Required·
SN/T0987.4—2013
31H1.31H2
Requirements·
“If the IBC is designed for this loading and unloading method, at least one of the tests (top lifting or bottom lifting) shall be carried out. Applicable to IBCs designed for stacking. 7.2 Test content
7.2.1 Vibration test
7.2.1.1 Scope of application: All IBCs loaded with liquids, as a design type test. Note: This test is applicable to the design types of IBCs manufactured from January 1, 2011. 7.2.1.2 Sample preparation: The IBC to be tested should be randomly selected, debugged and closed before transportation. Fill the IBC with water to not less than 98% of its maximum capacity. 7.2.1.3 Test method and time: The IBC is placed in the center of the test machine platform, vertically sinusoidal, double amplitude (peak-to-peak value) 25mm (1±5%). If necessary, install a restraint device on the platform to prevent the specimen from moving horizontally and sliding off the platform, but do not restrict up and down movement.
The test should be carried out for one hour, and the frequency used should cause the intermediate bulk container to momentarily detach from the vibration platform during a period of each cycle, so that a metal sheet can be intermittently and completely inserted into the gap between the bottom of the intermediate bulk container and the test platform. After the frequency is set for the first time, adjustments may be required to prevent the container from resonating. However, the test frequency must always ensure that the metal sheet can be inserted under the intermediate bulk container as required by this paragraph. The ability to continuously insert the metal sheet is a basic requirement for passing this test. The metal sheet used in this test should be at least 1.6mm thick, 50mm wide, and long enough to be inserted at least 100mm between the intermediate bulk container and the test platform to complete the test. | |tt||7.2.1.4 Acceptance criteria: No leakage or cracking is visible. In addition, no damage or failure of structural components, such as cracked welds or looseness, is visible. 7.2.2 Bottom lifting test
Scope of application: Applicable to various intermediate bulk containers with bottom lifting devices. 7.2.2.1
7.2.2.2 Sample preparation: The intermediate bulk container shall be filled to 1.25 times its maximum allowable total weight, and the load shall be evenly distributed. Test method: The intermediate bulk container shall be lifted and lowered twice by a forklift, and the forks shall be located in the center so that the distance between them is equal to 7.2.2.3
SN/T0987.4—2013||tt| ... 2.4 Qualification criteria: No loss of contents and no permanent deformation of the intermediate bulk container that may endanger transportation safety. 7.2.3 Top lifting test
Scope of application: Applicable to various intermediate bulk containers with top lifting devices. 7.2.3.2
Sample preparation: The intermediate bulk container shall be filled to twice its maximum allowable total weight. 7.2.3.3
Test method:
Lift the intermediate bulk container using the lifting devices in each of the two diagonal directions, apply a vertical lifting force, and maintain for 5 minutes;
Lift the intermediate bulk container using the lifting devices in each of the two opposite directions, apply a lifting force at an angle of 45° to the center of the container and its vertical line, and maintain for 5 minutes
Qualification criteria: No loss of contents and no permanent deformation of the intermediate bulk container that may endanger transportation safety. 7.2.4 Stacking test
Scope of application: Various intermediate bulk containers used for stacking and storage. Sample preparation: The intermediate bulk container shall be filled to its maximum allowable total weight. Test method: The intermediate bulk container shall be placed with its bottom facing down on a hard and flat ground, and then a uniformly distributed test load shall be applied to it in accordance with the following requirements:
One or more intermediate bulk containers of the same type filled to their maximum allowable total weight shall be placed on the tested container: or a) bZxz.net
Put a flat plate or a replica of the intermediate bulk container base on the tested intermediate bulk container, and then add the corresponding pendant to it. b)
Intermediate bulk containers of types 11H1, 21H1 and 31H1 shall be tested for 24h. Intermediate bulk containers of types 11H2, 21H2 and 31H2 shall be tested for 28d at 40℃.
7.2.4.4 Calculation of the test load applied: The test load applied to the intermediate bulk container shall be equal to the sum of the maximum permissible total weight of the same 1.8 times
intermediate bulk containers stacked on it during transport. 7.2.4.5 Acceptance criteria: No loss of contents and no permanent deformation of the intermediate bulk container that would endanger the safety of transport. 7.2.5 Leakage test
See Table 2 for the scope of application.
7.2.5.2 Sample preparation: The vent closure shall be replaced with a non-venting device, or the vent shall be blocked.
7.2.5.3 Test method and pressure applied: This test shall be carried out for at least 10 minutes using a gauge pressure of not less than 20 kPa. The airtightness of the container under test shall be determined by a suitable method, such as using a pressure difference test or placing the intermediate bulk container in water. If the latter method is used, a correction factor for the hydrostatic pressure shall be applied. Other methods that are at least equivalent may also be used. 7.2.5.4 Acceptance criteria: No leakage.
7.2.6 Hydraulic test
See Table 2 for the scope of application.
Sample preparation: The safety pressure relief device and the vent closing device should be in the non-operating state or these devices should be removed and the openings blocked.
Test method: This test should be carried out for at least 10 minutes at a gauge pressure not less than that specified in 7.2.6.4. The intermediate bulk container shall not be subject to any mechanical restraint during the test.
7.2.6.4 Applied pressure:
21H1 and 21H2 type intermediate bulk containers: 75kPa (gauge pressure). 4
SN/T0987.4-2013
b) 31H1 and 31H2 type intermediate bulk containers: the larger of the two values ​​in the following methods: 1) The first method can be determined by the following methods:
1) The total gauge pressure measured in the intermediate bulk container at 55°C (i.e. the vapor pressure of the filling material plus the partial pressure of air or other inert gas, minus 100kPa) multiplied by a safety factor of 1.5, i.e. the total gauge pressure determined by the maximum filling degree at a filling temperature of 15°C required by the International Dangerous Goods Code. 1.75 multiplied by the vapor pressure of the transported material at 50°C minus 100kPa. However, the minimum test pressure should be i
100kPa.
i) 1.5 multiplied by the vapor pressure of the transported material at 55°C minus 100kPa. But the minimum test pressure shall be 100 kPa
The second can be determined by the following method
twice.
But the minimum test pressure shall be 5 times the static pressure of water. Acceptance criteria: No leakage, and the intermediate bulk container does not have any permanent deformation that will endanger transportation safety.
7.2.7 Drop test
7.2.7.1 Scope of application: Applicable to all kinds of intermediate bulk containers for transporting solids. They shall be filled to not less than 95% of their capacity, and those for transporting liquids shall be filled to not less than 980% of their capacity. The test of bulk containers shall be carried out when the temperature of the test sample and its contents drops to -18℃ or lower. The liquid under test shall remain in a liquid state. If necessary, antifreeze shall be added. If this temperature treatment condition can be ignored, the test material shall have sufficient ductility and tensile strength at 18°C ​​or lower. 7.2.7.3 Test method: The intermediate bulk container shall be dropped onto a hard, inelastic, smooth, flat and horizontal surface. The drop shall be made in such a way that the base of the intermediate bulk container, which is considered to be the most vulnerable part, is impacted by the side, top and corner. 7.2.7.4 See Table 3 for the drop height.
Packing group I
Impact point.
Intermediate bulk containers with a capacity equal to or less than 45m3 shall also be used. The same or different intermediate bulk containers may be used for each drop. Table 3
Drop height
Packing group II
Packing group III
Unit: meter
7.2.7.5 When performing a drop test on a box to be loaded with liquid, if another substance is used instead, the relative density and viscosity of this substance should be similar to those of the substance to be transported. Water can also be used for the drop test. The drop height is as follows: a) If the relative density of the substance to be transported does not exceed 1.2, the drop height is shown in Table 3. If the relative density of the substance to be transported is greater than 1.2. The drop height should be calculated according to the relative density d of the material to be transported (round off to the first lower number b) (see Table 4).
Table 4 Calculation of drop height
Group I packaging
Group II packaging
Dish packaging
Unit: meter
7.2.7.6 Qualification criteria: No loss of contents. A small amount of material leaks from the seal after impact. As long as there is no further leakage, this phenomenon should not be considered unqualified.
SN/T 0987.4—2013
Qualification criteria
If all the above tests are qualified, the inspection batch is judged to be qualified. If more than one item is unqualified, the inspection batch is judged to be unqualified. Disposal of unqualified
If only one item is unqualified in the inspection result, double sampling should be carried out for re-inspection. If there is still one or more unqualified items, the inspection batch is judged to be unqualified.
SN/T0987.4-2013
People's Republic of China Exit Inspection and Quarantine Industry Standard
Inspection Procedure for Intermediate Bulk Containers of Dangerous Goods for Export Part 4: Rigid Plastic Intermediate Bulk Containers SN/T0987.4—2013
Published by China Standards Press
No. 2, Hepingli West Street, Chaoyang District, Beijing (100013) No. 16, Sanlihe North Street, Xicheng District, Beijing (100045) Editor's Office: (010) 642 75323
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