IPX7
Method name: short-time immersion test;
Test equipment: immersion tank.
Test conditions: The size should be such that after the sample is placed in the immersion tank, the distance from the bottom of the sample to the water surface is at least 1m. The distance from the top of the sample to the water surface is at least 0.15 m. Test time: 30min.
IPX8
Method name: continuous diving test;
Test equipment test conditions and test time: negotiated by both the supply and demand (buyer and seller). Its severity should be higher than IPX7.
IPX9K
Method name: high pressure jet test
Test equipment: the inner diameter of the water jet of the nozzle is 12.5mm;
Test conditions: water spray angle: 0°, 30°, 60°, 90° (4 positions); number of water spray holes: 4; sample table rotation speed: 5 ± 1r.p.m; distance is 100 ~ 150mm, each position for 30 seconds; flow rate is 14 to 16 L/min, water spray pressure is 8000 to
10000kPa, the water temperature is 80±5℃
Test time: 30 seconds for each position × 4 for a total of 120 seconds.