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GB/T 4857.3-2008 English PDF (GBT4857.3-2008)

GB/T 4857.3-2008 English PDF (GBT4857.3-2008)

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GB/T 4857.3-2008: Packaging -- Basic tests for transport packages -- Part 3: Stacking test methods using a static load

GB/T 4857.3-2008
Packaging.Basic tests for transport packages.Part 3. Stacking test methods using a static load ICS 55.020
National Standards of People's Republic of China
GB/T 4857.3-2008/ISO 2234.2000
Replace GB/T 4857.3-1992
Basic test of packaging and transportation package
Part 3. Static load stacking test method
(ISO 2234.2000, Packaging-Complete, filedtransportpackagesand
unitloads-Stackingtestsusingastaticload, IDT)
Released on.2008-05-27
2009-01-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued
GB/T 4857 "Basic Test of Packaging and Transportation Packages" is divided into the following parts. --- Part 1. The method of marking each part of the test;
---Part 2. Temperature and humidity adjustment treatment;
--- Part 3. Static load stacking test method;
--- Part 4. Compression and stacking test methods using a pressure tester; ---Part 5. Drop test method;
--- Part 6. Rolling test method;
--- Part 7. Sinusoidal fixed frequency vibration test method;
---Part 9. Spray test method;
---Part 10. Sinusoidal variable frequency vibration test method;
--- Part 11. Horizontal impact test method;
--- Part 12. Water immersion test method;
--- Part 13. Low air pressure test method;
--- Part 14. Tilting test method;
---Part 15. Controllable horizontal impact test method;
--- Part 17. General principles for the preparation of a performance test program; --- Part 18. Quantitative data for the preparation of the performance test program; ---Part 19. Record of circulation test information;
--- Part 20. Collision test method;
--- Part 21. Anti-mildew test method;
--- Part 22. Unit cargo stability test method;
--- Part 23. Random vibration test method.
This part is the third part of GB/T 4857.
This part is equivalent to ISO 2234.2000 "packaged complete, full-load transport package and unit cargo static load stacking test". This part replaces GB/T 4857.3-1992 "Test Method for Static Load Stacking of Packaging and Transport Packages". The main changes in this section compared with GB/T 4857.3-1992 are as follows. --- Modify the original only for transport packages in the scope to be suitable for transport packages and unit goods; --- Added a chapter on terms and definitions, adding the term "test sample"; --- Cancelled 6.1 ~ 6.5 (1992 edition);
--- Added Chapters 6 and 7 (this edition);
--- Modified the content of the test report.
This part is proposed and managed by the National Packaging Standardization Technical Committee (SAC/TC49). This section drafted by. Ministry of Railways Standard Metrology Institute, Shenzhen Yuxing Industrial Co., Ltd. The main drafters of this section. Zhang Jin, Wang Wenfang, Lan Shumei, Zhao Hua, Bai Zhigang. The previous versions of the standards replaced by this section are.
---GB 4857.3-1984; GB/T 4857.3-1992.
GB/T 4857.3-2008/ISO 2234.2000
Basic test of packaging and transportation package
Part 3. Static load stacking test method
1 range
This part of GB/T 4857 specifies the main test equipment used for the static load stacking test of transport packages and unit cargoes. Performance requirements, test procedures, and test report content.
This section is applicable to assess the compressive strength of the transport package and unit cargo during stacking or the protection of the contents. It can be As a single test, it can also be used as part of a series of tests.
2 Normative references
The provisions in the following documents become the provisions of this part by reference in this part of GB/T 4857. Quotations with dated And all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouragement is achieved in accordance with this section. The parties to the agreement study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this section.
GB/T 4857.1 Packaging and transportation package parts of the test method for marking (GB/T 4857.1-1992, ISO 2206. 1987, MOD)
GB/T 4857.2 packaging and transportation package temperature and humidity adjustment treatment (GB/T 4857.2-2005, ISO 2233.2000, MOD)
3 Terms and definitions
The following terms and definitions apply to this part of GB/T 4857.
Completely packed transport packages and unit cargo.
4 Test principle
When testing in one of three test methods, place the test sample on a flat horizontal plane and apply it evenly Load. The applied load, atmospheric conditions, carrying time, and placement state of the test sample are preset. Note. If possible, the test sample may be measured for up-and-down skew or left-right deflection during the test. 5 test equipment
5.1 Horizontal plane
The horizontal plane should be flat and hard (the height difference between the highest point and the lowest point does not exceed 2 mm). If it is a concrete floor, its thickness should be Not less than 150mm.
5.2 Loading method
5.2.1 Method 1. Package Group
Each piece of the package should be identical to the test sample in the test. The number of packages should be the appropriate load for their total mass. Depending on the amount of charge.
5.2.2 Method 2. Free loading of the tablet
The plate should be able to freely adjust to equilibrium on the test sample along with the appropriate load. The load and loading plate can be one GB/T 4857.3-2008/ISO 2234.2000
The center of the loading plate is placed in the center of the top of the test sample and should be at least 100 mm larger than the top side of the package. The The board should be stiff enough not to deform under full load.
Note. This type of load is sometimes referred to as "free load."
5.2.3 Method 3. Guided loading plate
Guided measures are employed to maintain the lower surface of the plate consistently with the appropriate load. When the loading plate is centered on top of the test sample, its side dimensions should be at least 100 mm larger than the top side of the test sample. The The board should be stiff enough not to deform under full load.
Note 1. This type of load is sometimes referred to as a “guided load”.
Note 2. If the guiding measures are applied to ensure that the loading plate is level, the measures taken should not cause friction and affect the test results. 5.3 Deviation test method (if necessary for testing)
It should be accurate to ±1mm and can indicate the increase or decrease of the tilt size. In addition, the skew test equipment should meet the requirements of Chapter 8. Seek tolerance.
5.4 Safety facilities
The stability and safety of the load applied in the test depends not only on the resistance of the test sample, but also on its top surface and loading flatness. The friction between the bottom surfaces of the plates. To this end, a sound test facility should be provided and the load guaranteed in the event of a hazard Controlled to prevent injury to nearby people.
6 Preparation of test samples
The prepackage is loaded into the test sample and the package is packaged according to the normal packaging procedure at the time of shipment. Note. If a simulated content is used, its dimensions and physical properties should be as close as possible to the size and physical properties of the prepackage. Similarly, the packaging method should be The method used when shipping is the same.
7 Temperature and humidity pretreatment of test samples
The test sample is subjected to temperature and humidity pretreatment according to the requirements of GB/T 4857.2. 8 test procedure
8.1 The test shall be carried out under the same temperature and humidity conditions as the pretreatment, and the temperature and humidity conditions shall be selected according to the material or use of the test sample. of. If the same conditions are not met, the test should be carried out under as close as possible atmospheric conditions. 8.2 Place the test sample on a horizontal plane in a predetermined state (see 5.1), make the package group for loading (see 5.2.1), free loading plate (See 5.2.2) or a guided loading plate (see 5.2.3) centered on the top surface of the test sample. If using the method of 5.2.2 or 5.2.3, place the weight as a load on the loading plate without causing an impact, and It evenly contacts the loading plate so that the center of gravity of the load is above the center of the top surface of the test sample. The total mass of the weight and the loading plate The error of the predetermined value should be within ±2%. The distance between the center of gravity of the load and the loading plate should not exceed 50% of the height of the test sample. If the method of 5.2.2 or 5.2.3 is used, the test sample is measured. The test sample should be pressured after sufficient preloading to Ensure that the loading plate is in full contact with the test sample.
8.3 The load shall be maintained for a predetermined duration (typically 24h, depending on the material) or until the package is crushed. 8.4 Remove the load and inspect the test sample.
Note 1. During the test, the size of the test sample can be measured at any time if necessary. Note 2. If the test is specially loaded, the appropriate imitation wedge can be placed above or below the test sample, or it can be placed as needed. Note 3. If the test sample is placed on a pallet or in a stacked state, several samples placed side by side should be selected for testing or using actual stacking format. test.
GB/T 4857.3-2008/ISO 2234.2000
9 test report
The test report should include the following.
a) indicate that the test is performed in accordance with this section; b) laboratory name and address, customer name and address;
c) the uniqueness of the report;
d) receiving the test sample date and the test completion date and number of days; e) the name, position and signature of the person in charge;
f) indicate that the test results are valid only for the test sample;
g) There is no laboratory certificate, and the copying report is invalid; h) the number of test samples;
i) Detailed description. the name, size, structure and material specifications of the packaging container, gasket, support, fixing method, sealing, strapping status And other protective measures, the total mass of the test sample, and the quality of the contents, in kilograms (kg); j) The name, specification, model, quantity, etc. of the contents, if the simulated contents are used, it should be specified in detail; k) Preheated temperature, relative humidity and time, temperature and relative humidity during the test site, whether these values are consistent GB/T 4857.2 requirements;
l) describe the state of the test sample placed during the test using the marking method specified in GB/T 4857.1; m) total mass [in kilograms (kg), including the mass of the loaded plate], and the duration of the load on the sample, the loading used The method is Method 1, Method 2 or Method 3. Whether to use a guiding device, if adopted, indicating the mode of adoption; n) the position of the test sample deflection measurement point and the measurement of these deflections at what stage of the test; o) the shape and size of the dummy wedge used;
p) a description of the test equipment;
q) Explain the difference between the test method used and this part;
r) Record of test results and any observed phenomena that can help explain the test results correctly. GB/T 4857.3-2008/ISO 2234.2000

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