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MHT1057-2014: Tests for combination packaging and packages of dangerous goods in limited quantities
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Tests for combination packaging and packages of dangerous goods in limited quantities
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MH/T 1057-2014
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Standard similar to MHT1057-2014 MH/T 1059 MH/T 1055 MH/T 1052 Basic data | Standard ID | MH/T 1057-2014 (MH/T1057-2014) | | Description (Translated English) | Tests for combination packaging and packages of dangerous goods in limited quantities | | Sector / Industry | Civil Aviation Industry Standard (Recommended) | | Word Count Estimation | 1,131 | | Date of Issue | 28/2/2014 | | Date of Implementation | 1/5/2014 | | Issuing agency(ies) | Civil Aviation Administration of China | MHT1057-2014: Tests for combination packaging and packages of dangerous goods in limited quantities
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Tests for combination packaging and packages of dangerous goods in limited quantities
ICS 03.220.50
Civil Aviation Industry Standard of the People's Republic of China
Limited quantity of dangerous goods combination packaging
And package test specifications
2014-02-08 released
2014-05-01 implementation
Issued by Civil Aviation Administration of China
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed and interpreted by the Transportation Department of the Civil Aviation Administration of China.
This standard was approved by the Aircraft Airworthiness Certification Department of the Civil Aviation Administration of China.
This standard is under the jurisdiction of the China Academy of Civil Aviation Science and Technology.
This standard was drafted by the China Academy of Civil Aviation Science and Technology.
The main drafters of this standard. Li Yuhong, Chen Jie, Zhao Xiaochen, Yan Shichang, Zhao Ningning.
Test specification for restricted quantity dangerous goods combination packaging and packages
1 Scope
This standard specifies the general technical requirements, packaging performance tests, packaging markings, and packaging for combination packaging intended to contain restricted quantities of dangerous goods.
Requirements for parts use appraisal and test reports.
This standard is applicable to the performance test of the limited number of dangerous goods combination packages and the use appraisal of the limited number of dangerous goods packages.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
ICAO Doc 9284 AN/905 "Technical Regulations for Safe Air Transport of Dangerous Goods" (2013-2014 Edition)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Dangerous goods in limited quantities
It is possible to reasonably control the weight of each package and the net content of dangerous goods inside to reduce the risk of air transportation.
The Y package in the dangerous goods list in the Technical Regulations for the Safety of Air Transport of Dangerous Goods describes the dangerous goods to be packaged.
3.2
Packages of dangerous goods in limited quantities
The complete package after packaging the restricted quantity of dangerous goods by means of combined packaging.
3.3
Performance test
Simulate different transportation environments to carry out type tests on the combination packages intended to contain restricted quantities of dangerous goods.
3.4
Use appraisal
Appraisal of complete packages after the use of combined packages to contain restricted quantities of dangerous goods.
4 General technical requirements
4.1 Passenger aircraft are allowed to be transported and comply with ICAO Doc 9284 AN/905 (hereinafter referred to as ICAO TI) 3; 4.1 categories, categories and packages
Only the dangerous goods of the standard loading grade can be transported in accordance with the provisions of the restricted quantity of dangerous goods.
MH
4.2 Packages intended to contain restricted quantities of dangerous goods shall be combined packages. The packaging should have a reasonable structure, good protective performance, and conform to ICAO TI’s
General requirements for packaging of dangerous goods, its design mode, technology, and material should be adapted to the characteristics of air transport of dangerous goods, suitable for airborne, convenient for safe loading and unloading and
Transportation, can withstand the risks under normal transportation conditions.
4.3 The combination package intended to contain restricted quantities of dangerous goods should be of good quality, and its main structure and sealing device should be able to ensure that it is in normal transportation conditions.
Under the components, there will not be any leakage caused by vibration, temperature, humidity or pressure changes. The design of the closed device should ensure that
Now the packaging is incorrect or not tight, and it is easy to check and confirm its tightness. The design of the closing device should also ensure that it is always tight during transportation.
Solid does not leak.
4.4 The parts of the combined packaging that are in direct contact with the dangerous goods (including the enclosed device) should not undergo chemical or other reactions with the contained substances.
The material should not contain ingredients that are prone to danger with the contents, resulting in harmful reactions or significantly weakening the performance of the packaging. The contents are
The liquid intermediate packaging materials and absorbent materials should not react dangerously with the liquid.
4.5 When filling liquid into the inner packaging, sufficient surplus space should be reserved to prevent the expansion of the liquid caused by the expansion of the temperature during transportation.
Leakage or permanent deformation of the container. At 55°C, the liquid should not completely fill the container.
4.6 The packaging (including inner packaging) intended to contain the liquid should be able to withstand a pressure difference of over 95 kPa without leakage. If the inner packaging is placed
In the auxiliary packaging, the auxiliary packaging should meet the above pressure requirements, and the inner packaging may not be subject to the above pressure restrictions.
4.7 The inner packaging should be properly packed, fixed or lined in the outer packaging to ensure that the inner packaging will not be ruptured under normal transportation conditions.
Pierce or leak the contents.
4.8 The texture and thickness of the outer packaging should ensure that it does not generate heat when friction occurs during transportation, so as to avoid causing chemical stability of the contents.
change.
4.9 Unless otherwise specified by ICAO TI, combination packaging that requires exhaust to reduce the internal pressure of the packaging should not be used.
4.10 Under the temperature conditions encountered in air transportation, if a certain solid will become liquid due to temperature changes, then this solid should be used
The packaging should also be able to contain the substance in a liquid state.
5 Packaging performance test
5.1 Test requirements
5.1.1 Combination packages intended to contain restricted quantities of dangerous goods, including their inner packaging, shall undergo the performance tests specified in this chapter.
5.1.2 The inner layer treatment or coating that needs to be carried out on the package for safety reasons should still maintain its protective performance after the test.
5.1.3 Refer to Table 1 for the qualification requirements for the performance test of the tested sample.
Table 1 Qualified requirements for combined packaging performance test
Performance test project performance test qualification requirements
Drop test
The outer packaging should not show any damage that may affect the safety of transportation. The inner packaging should always be completely placed in the outer packaging, there should be no
The contents leaked from the inner packaging.
Stacking testa
There should be no damage to the outer packaging that will affect the safety of transportation, and there should be no damage that will reduce its strength or affect the stacking stability of packages.
Qualitative deformation. There should be no breakage of the inner packaging, no leakage of any contents, and no significant reduction in packaging performance.
There should be no leakage in the inner packaging of the differential pressure test.
a Before the stacking test evaluation, the plastic packaging should be cooled to ambient temperature.
5.2 Preparation of test samples
5.2.1 Contents
5.2.1.1 The liquid contained in the test sample should not be less than 98% of its maximum volume, and the solid contained should not be less than its maximum volume.
95%.
5.2.1.2 The contents of the test sample can be tested with substitutes. The solid substitute should have the same substance as the dangerous goods actually transported
Physical characteristics (such as quality, particle size, etc.), the liquid substitute should have a relative density and viscosity similar to the actual transported substance, or according to
For the conditions required in Table 2, the drop test was performed with water as a liquid substitute.
5.2.2 Sample pretreatment
5.2.2.1 Fiberboard packaging should be placed for at least 24 hours in an environment with controlled temperature and relative humidity.
The following three environmental conditions can be selected.
--Temperature 23 ℃±2 ℃ and relative humidity 50%RH±2%RH are the best environmental conditions;
--Temperature 20 ℃±2 ℃ and relative humidity 65%RH±2%RH;
--Temperature 27 ℃±2 ℃ and relative humidity 65%RH±2%RH.
5.2.2.2 When plastic packaging and coated packaging are used for the first time, they should be directly loaded with the dangerous goods to be contained for more than 6 months before the test.
Compatibility test.
5.2.3 Special preparation for drop test samples
5.2.3.1 When performing a drop test on the following packages, the temperature of the test sample and its contents shall be reduced to −18 ℃ or lower.
a) Plastic drums;
b) Plastic square bucket;
c) Plastic boxes other than foamed polyethylene boxes;
d) The inner packaging is plastic (except plastic bags) and is intended to contain a combination of solids or articles.
5.2.3.2 The liquid content of the test should be kept liquid, and antifreeze can be added if necessary.
5.2.4 Number of samples
The drop test requires 6 samples, the stacking test requires 3 samples, and the differential pressure test requires 3 samples. Without affecting the test results, one
More than two tests can be carried out for one test sample.
5.3 Drop test
5.3.1 Purpose
This test is used to evaluate the ability of a combination package intended to contain a restricted quantity of dangerous goods to withstand a drop.
5.3.2 Test method
5.3.2.1 The test sample falls freely onto the impact plate from a height of 1.2 m. The key parts of the sample should be tested according to Table 2 to simulate
Situations that may occur during actual transportation.
5.3.2.2 The impact plate should be a hard, inelastic, horizontal plane, and should.
a) It is a heavy whole, not easy to move;
b) Flat, no local defects on the surface that may affect the test results;
c) It is hard enough (such as cement board or steel plate), does not deform under the test conditions, and will not cause damage due to the test;
d) It is large enough to ensure that the test package completely falls on its surface.
If the relative density of the liquid content exceeds 1.2 and water is used as a substitute for the test, the drop height should be calculated as follows. d×1.0 m, which
The middle d is the relative density (accurate to one decimal place). The water referred to here includes water or antifreeze with a minimum specific gravity of 0.95 when the test temperature is -18 ℃.
5.4 Stacking test
5.4.1 Purpose
This test is used to evaluate the ability of packages intended to contain restricted quantities of dangerous goods to withstand stacking.
5.4.2 Test method
5.4.2.1 Place the test sample on a horizontal plane, stack the same package with the same total mass on the top surface of the test sample, stack it
The minimum height including the test sample should be 3 m, or the stacking test equipment and stacking load that meet the requirements of GB/T 4857.3 should be used.
The duration of the test is 24 h. The test time of plastic drums and plastic square drums used to contain liquids should be 28 d, and the temperature should not be lower than 40 ℃.
5.4.2.2 The horizontal plane should be flat and hard, and the height difference between the highest point and the lowest point should not exceed 2 mm. If it is a concrete floor, its
The thickness should not be less than 150 mm.
5.5 Differential pressure test
5.5.1 Purpose
This test is used to evaluate the ability of the inner packaging to withstand the pressure difference in a combination package intended to contain a restricted quantity of liquid dangerous goods.
Note. Dangerous goods can be packed into inner packagings that do not meet this differential pressure test, but this inner packaging needs to be packed into an auxiliary packaging that meets the requirements of this differential pressure test.
5.5.2 Test method
A hydraulic packaging test machine for dangerous goods or other experimental equipment that can achieve the same effect can be used.
When using a hydraulic dangerous goods packaging testing machine, apply hydraulic pressure continuously and evenly to the inner packaging while opening the exhaust valve to exclude the test samples
Air remains inside, and then close the exhaust valve. Plastic packaging including its closure should withstand the specified constant hydraulic pressure (gauge pressure) for 30 minutes, and other packaging packages
Including its closure should withstand the specified constant hydraulic pressure (gauge pressure) for 5 minutes.
Note. If the specified pressure difference can be reached and maintained, the external vacuum test method can also be used for the rigid inner packaging.
5.5.3 Pressure applied
5.5.3.1 The inner packaging of the test sample should be able to withstand the greater of the following two pressures without leakage.
a) Internally generated pressure difference of not less than 95 kPa; for liquids in Category 3 or 6.1 Ⅲ packaging, the internal pressure
The difference is not less than 75 kPa;
b) The pressure related to the vapor pressure of the liquid inside.
5.5.3.2 The pressure related to the vapor pressure of the liquid inside is calculated according to one of the following three methods.
a) The total gauge pressure inside the inner packaging measured at a temperature of 55 ℃ (that is, the vapor pressure of the contained substance and the partial pressure of air or other inert gases)
The sum minus 100 kPa) is multiplied by the safety factor 1.5; the total gauge pressure should be in accordance with ICAO TI 4; the maximum filling degree required by 1.1.5
And the filling temperature of 15 ℃ to determine;
b) The vapor pressure of liquid at 50 ℃ is 1.75 times minus 100 kPa, but the minimum test pressure is 95 kPa;
c) The vapor pressure of liquid at 55 ℃ is 1.5 times minus 100 kPa, but the minimum test pressure is 95 kPa.
5.6 Inspection rules
Carry out the test item by item according to the requirements of Chapter 5.If there is a sample that does not meet the specifications in each test, the test is judged as unqualified; if there is one
If the test fails, the batch of packaged products is determined to be unqualified.
6 Packaging mark
6.1 The package that has passed the performance test shall be marked on the outer package of the combination package to indicate that the package has passed the performance requirements specified in Chapter 5.
Can test.
6.2 The packaging mark consists of three parts. The first part is the diamond mark in accordance with ICAO TI’s 3; 4.5.2, and the second part is this
The standard number, the third part is the code of the packaging manufacturer, production year and batch number. Refer to Appendix A for labeling examples.
6.3 The marking should be obvious and clear, and can withstand open-air exposure without significantly reducing the effect.
7 Appraisal of package use
7.1 General requirements
7.1.1 The size of the package should be large enough to affix all necessary marks and labels. The markings on the package should be accurate and clear, with three markings
The sub-content shall comply with the provisions of Chapter 6.The outer surface of the package should be clean, and there should be no residue, pollution or leakage.
7.1.2 The packaging selected by the user (including inner packaging, closure devices, absorbent materials and cushioning materials, etc.) should be
The nature of the dangerous goods is suitable, and there should not be any chemical reaction that affects the strength of the packaging and occurs dangerous. Plastic packaging used for the first time may have inner coating
For layered packaging, a report that has passed the chemical compatibility test for more than 6 months should be provided.
7.1.3 Packaging operations (including inner packaging) should be packaged in accordance with the packaging instructions provided by the manufacturer (see Appendix B for examples).
7.1.4 For the inner packaging with liquid, the cover should face upwards, and when placed in the outer packaging, it should be in the same direction as the direction mark on the outer packaging.
7.1.5 If dangerous goods and other dangerous goods or general goods can have the following dangerous reactions, they should not be loaded with the same restricted quantity of dangerous goods
Inside the outer package.
a) Burning and/or generating considerable heat;
b) Release flammable, toxic or asphyxiating gas;
c) Formation of corrosive substances;
d) The formation of unstable substances;
e) Other dangerous reactions occur.
7.1.6 General liquid dangerous goods should be filled to less than 98% of the total volume of the packaging container. Liquid dangerous goods with a large expansion coefficient should be based on their
The expansion coefficient determines the reserved volume of the container. Solid dangerous goods should be packed to less than 95% of the packaging volume, and the remaining space should be filled or lined according to regulations
pad.
7.1.7 Dangerous goods should not be spilled between the outer surface of the packaging container and the inner packaging.
7.1.8 The adsorption material should not have a dangerous chemical reaction with the dangerous goods contained in it, and ensure that it can completely absorb all the remaining parts when the inner packaging is broken.
Dangerous goods, which will not cause the contents to leak out of the outer packaging.
7.1.9 The cushioning material should not chemically react with the dangerous goods to reduce its shockproof performance, and should be sufficient to prevent the inner packaging from moving.
7.1.10 The seal of barrel packaging should be equipped with an appropriate sealing ring, and the seal should meet the tightness and sealing requirements. For wrench hoops, pins are also used
Lock the wrench.
7.1.11 Wooden boxes and fiberboard boxes should be intact and the sealing should be flat and firm. When using nails to fasten, they should be nailed firmly, the nail cap should not protrude and penetrate
The tip of the nail should be turned upside down and sealed to prevent any chemical or physical reaction with the contents.
7.1.12 When liquid is contained, the seal of the inner packaging shall meet the requirements for liquid seal or air seal.
7.1.13 If the outer packaging of the box is not leak-proof or waterproof, a leak-proof inner lining or inner packaging shall be used.
7.1.14 The gross weight of a single package should not exceed 30 kg.
7.2 Sampling
7.2.1 Use the same packaging (same raw material, same structure and same process production) and contain the same dangerous goods in restricted quantities
The package is an appraisal batch, and the number of packages in each appraisal batch should not exceed 5,000 pieces.
7.2.2 When performing use appraisal for each appraisal batch of packages, the number of samples is selected by sampling. The number of samples is shown in Table 3.
7.3 Identification method
7.3.1 Check whether the appearance of the package meets the requirements of 7.1.1.
7.3.2 Check the performance test qualification report of the package, and check the compatibility test report mentioned in 7.1.2.
7.3.3 Check whether the selected packaging is compatible with the nature of the restricted quantity of dangerous goods. Check the dangerous goods and the packaging in contact with them,
Whether the adsorption material, shockproof and cushioning materials, rope, thread and other additional packaging materials have chemical reactions that affect their performance
7.3.4 Check whether the net weight of the restricted quantity of dangerous goods in the package meets the requirements of the dangerous goods in ICAO TI Table 3-1.Check the package
Whether the gross weight of the assembly meets the requirements of 7.1.14.
7.3.5 Check whether the restricted quantity dangerous goods packages containing liquids or solids meet the requirements of 7.1.6.
7.3.6 Check whether the adsorption material meets the requirements of 7.1.8.
7.3.7 Check whether the gasket material meets the requirements of 7.1.9.
7.3.8 Check whether the drum packaging meets the requirements of 7.1.10.
7.3.9 Check whether the box package meets the requirements of 7.1.11 and 7.1.13.
7.3.10 Check whether the inner packaging seal of the package meets the requirements of 7.1.12.
7.4 Inspection rules
According to the requirements of this chapter, the appraisal is carried out item by item. If each item has a package that does not meet the specifications, it will be judged as unqualified; if one item is unqualified
Determine that the batch of packages is unqualified.
8 Test report
8.1 Combination packaging performance test report
8.1.1 The combined packaging performance test report shall include the following.
a) The name and address of the combined packaging appraisal agency;
b) The name and address of the applicant (if applicable);
c) Unique identification of performance test report;
d) Date of performance test report;
e) The name and address of the combined packaging manufacturer;
f) Marking of combined packaging;
g) Description of combined packaging types (such as inner packaging, outer packaging size, material, cover, thickness, etc.) and photos (inner packaging, outer packaging, etc.)
Packaging, etc.);
h) Maximum volume;
i) The characteristics of the tested contents (such as liquid viscosity and relative density, solid particle size);
j) Test description and results;
k) Instructions for combined packaging;
l) The production date of the package;
m) Signature, including the name and identity of the signatory.
8.1.2 The performance test report should also include the following statements.
a) The combination package prepared for transportation to contain restricted quantities of dangerous goods has been tested in accordance with the provisions of this standard;
b) The use of other packaging methods or components that do not meet 8.1.1 g) ~ 8.1.1 i) may cause the report to be invalid.
8.1.3 The performance test report should be kept for at least two years for inspection.
8.2 Use appraisal report of package
8.2.1 The package use appraisal report shall include the following.
a) The name and address of the certification body;
b) The name and address of the applicant (if applicable);
c) Use the unique identification of the appraisal report;
d) The date of using the appraisal report;
e) Description of packaging type (type and material of outer packaging, type and material of inner packaging);
f) The marking of the packaging and the name of the manufacturer;
g) Unique identification of the performance test report;
h) UN number and proper shipping name of the contents;
i) A description of the quality or volume of the inner packaging and outer packaging containing restricted quantities of dangerous goods;
j) Appraisal conclusion;
k) Signature, including the name and identity of the signatory.
8.2.2 The use appraisal report of the package should be kept for at least two years for inspection.
AA
Appendix A
(Informative appendix)
Marking sample of restricted quantity dangerous goods combination packaging
The restricted quantity dangerous goods packaging mark consists of three parts. The three parts should be next to each other, and the second and third parts are listed in two rows in the first part
Points to the right. The specifications and colors of the diamond mark shall meet the requirements of ICAO TI 3;4.5.Mark the numbers in the second and third parts,
The height of the letters is at least 6 mm. The sample is shown in Figure A.1.
Figure A.1 Example of marking mark for restricted quantity dangerous goods combination packaging
BB
Appendix B
(Informative appendix)
Sample Instructions for Use of Combination Packages of Dangerous Goods in Limited Quantity
Instructions for use of restricted quantity dangerous goods combination packaging
The shipper shall ensure compatibility with all packaging materials and comply with all applicable ICAO TI regulations reg...
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