這份文件其實要錢...
file.yizimg.com/313680/2008091706515095.pdf
14.2 Test conditions
The tests are conducted with fresh water.
During the tests for IPXl to IPX6 the water temperature should not differ by more than 5 K from the temperature of the specimen under test.
If the water temperature is more than 5 K below the temperature of the specimen a pressure balance shall be provided for the enclosure.
For IPX7 details of the water temperature are given in 14.2.7.
也就是說
溫差造成的壓力差是必須考量的重要條件
不要再說溫度上升或過熱就丟水裡水冷了
會害人...
14.2.5 Test for second characteristic numeral 5 with the 6,3 mm nozzle
internal diameter of the nozzle: 6,3 mm
delive rate: 12 5 I/min ± 5 %
water pressure: to be adjusted to achieve the specified delivery rate
core of the substantial stream: circle of approximately 40 mm diameter at 2,5 m distance from nozzle
test duration per square metre of enclosure surface area likely to be sprayed: 1 min
minimum test duration: 3 min
distance from nozzle to enclosure surface: between 2,5 m and 3 m
http://www.liyitec.com/Download/08-11-VAA-050IP65chi.pdf
http://sgmlight.com/media/63834/T208225___DANAK_1914212___SGM____P_5_Wash_Light___IP65_tightness_test.pdf
Z Ultra
http://www-static.se-mc.com/blogs.dir/0/files/2013/06/Xperia-Z-Ultra-Test-Report-2013-June-04_zh_TW-d9d635b52d508ed32008e7753762be22.pdf
實驗方式是承受2.5到3公尺距離遠的水柱
總覺得有些水龍頭轉開的水量和強度可能已超過實驗條件...
規範上還有更強水柱的IPX6應該不是沒原因
