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In order to effectively ensure the safety of battery air transportation and avoid unsafe incidents, CAAC issued the “Lithium Battery Air Transport Code” to various air transport companies, clearly requiring all airports to comply strictly with the lithium battery transportation during the collection and transportation of lithium batteries. The provisions of the UN 38.3 test conducted by the CAAC-accredited laboratories cannot be accepted without the UN 38.3 conformity report.
At present, all airlines rely on the relevant provisions of the IATA “Dangerous Goods Regulations” for mobile phone batteries, notebook computer batteries, walkie-talkie batteries, and camera batteries that are applicable to, but not limited to, rechargeable lithium batteries that are transported alone or with equipment. , Remote control toy batteries and other products have made relevant inspection regulations, among which the test requirements for products containing lithium batteries are Part 38.3 of Part 3 of the UN Handbook of Test and Standard for the Transport of Dangerous Goods (referred to as UN38.3 test).
UN38.3 test items
T.1 height simulation test
Under pressure ≤ 11.6 kPa, temperature 20 ± 5 °C conditions.
T.2 thermal test
High-low temperature impact test under conditions of 75±2°C and -40±2°C, storage time under limit temperature ≥6h, high and low temperature conversion time ≤30min impact 10 times, room temperature (20±5°C) storage 24h, test Total time at least one week
T.3 vibration test
Complete a reciprocal logarithmic sweep sinusoidal vibration from 7Hz to 200Hz in 15min, and complete 12-dimensional vibration in 3D within 3h;
T.4 impact test
150g, 6ms or 50g, 11ms half-sine shock, 3 times for each mounting direction, a total of 18 times;
T.5 external short circuit test
A short circuit at 55±2°C with an external resistance of <0.1Ω, the short-circuiting time continued until the battery temperature returned to 55±2°C for 1 hour.
T.6 crash test
A 9.1 kg weight was placed on a cell with a 15.8 mm round rod from a height of 61±2.5 cm, and the cell surface temperature was measured.
T.7 overcharge test
The battery was overcharged for 24 hours at 2 times the maximum continuous charge current and 2 times the maximum charge voltage.
T.8 forced discharge test
The battery is connected to a 12V DC power supply and is forcibly discharged with the maximum discharge current.
Lithium battery packaging requirements
1, unless installed in the device
(If installed in cell phones, cameras, interphones, laptops, etc.), batteries and primary batteries must be individually packaged to prevent short-circuiting and housed in a sturdy outer packaging.
2. Unless installed in the equipment, if each package contains more than 24 primary batteries or 12 batteries, the following requirements must also be met:
1) Each package must be marked with special instructions that should be taken when the lithium battery is contained and the package is damaged.
2) Each ticket must have random documents indicating the special measures that should be taken when the lithium battery is packed in the package and the package is damaged.
3) Each package must be able to withstand a 1.2m drop test in any orientation without damaging the battery or battery in the package and not changing the position of the battery so that the battery and the battery (or primary battery and primary battery) interact with each other Contact, no battery leaks from the package.
4) Unless the lithium battery is installed in the device, the gross weight of each package must not exceed 30kg.
UN38.3 test cost
UN38.3 is classified according to battery type, volume size, size, capacity, and purpose, and different costs vary according to classification.