The UN38.3 Certificate of Appraisal for the Carriage of Goods by Air and the Certificate of Appraisal for the Carriage of Goods by Sea are both valid only for the current year, i.e., the validity period of the certificate is until December 31st of the current year, and the certificate will be mandatorily renewed on January 1st of each year!
Application for UN38.3 certification preparation information
1, application form to fill out
2, the power of attorney, lithium battery transportation statement and random documents to fill out
3, battery specifications
4, packaging pictures (pictures of the outer packaging, open the outer packaging pictures, pictures of the inner packaging)
5, testing samples (need to have two) Product capacity, watt-hour, voltage and other parameters printed on the product)
6, core specifications
(the above information can provide a template)
UN38.3 Test Items
T.1 Height Simulation Test
Under the conditions of pressure ≤ 11.6kPa, temperature 20 ± 5 ℃, stored for more than 6 hours, no leakage of liquid, exhaust, disintegration, rupture, burning.
T.2 Thermal test
High and low temperature impact test at 72 ± 2 ℃ and -40 ± 2 ℃, storage time in the limit temperature ≥ 6h, high and low temperature conversion time ≤ 30min, 10 times the impact, room temperature (20 ± 5 ℃) storage 24h, the total time of the test is at least one week
T.3 Vibration test
15min from 7Hz to 200Hz to complete a reciprocating logarithmic sweep sinusoidal vibration, 3h to complete the three-dimensional direction of the 12 vibrations; logarithmic sweep for: from 7 Hz to maintain the maximum acceleration of 1gn until the frequency reaches 18 Hz. The amplitude was then held at 0.8 mm (total offset of 1.6 mm) and the frequency was increased until the maximum acceleration reached 8 gn (frequency of about 50 Hz). Hold the maximum acceleration at 8gn until the frequency is increased to 200 Hz.
T.4 Shock test
150g, 6ms or 50g, 11ms half-sine shock, 3 times for each mounting direction, total *** 18 times;
T.5 External short circuit test
Short circuit at 55±2°C, external resistance <0.1Ω, short circuit time lasts until 1h after the battery temperature returns to 55±2°C.
T.6 Crash test
9.1kg weight from 61±2.5cm height falls on the battery with 15.8mm round bar, detect the surface temperature of the battery.
T.7 Overcharge test
Under the condition of 2 times of the maximum continuous charging current and 2 times of the maximum charging voltage, the battery is overcharged for 24h.
T.8 Compulsory discharge test
The battery is connected to the 12V DC power supply in series, and is forced to be discharged with the maximum discharging current.