IP in IP69K is Ingress Protection Rating. IP 69K consists of Dust-proof and waterproof test . Two Numbers behind IP stand for different tests. The first number is the solid state protection level, which is the dust protection level the product are exposed to, and the range is 0 to 6;The second number is the liquid protection level, which is what we call the waterproof level test. The rating scale is 0 to 9K. So if a product marks IP69K ,it means dust proof level ranks 6 and waterproof rate 9K.
If a product passed Dust-proof test IP6X, it indicates that Dust should not enter the cabinet when the low pressure of 20 MB is inside. When the product’s hell is disassembled, no harmful dust can be observed. The testing standards of IP6X refer to ISO 20653、GB/T 4208 and IEC/EN 60529.
Regard to IPX9K,named high pressure jet test, we use IPX9K rain box with 4 spray holes and 12.5mm internal diameter of the nozzle. In the rain water box spaying angle: 0 °, 30 °, 60 °, 90 ° (4 sets); Sample table speed : 5±1r.p.m .The distance to the sample is 100~150mm and each position is spaying 30 seconds. Water flow rate is 14 ~ 16 l/min, hydraulic pressure from 8000 to 10000 kpa, and the water temperature to 80 + 5 ℃. The testing time of IPX9K is 30 seconds for each position, and the total time of four positions is 120 seconds.
To sum up, IP69K have two tests procedures. The highest level dust-proof test and high-temperature&high-pressure spray test. Corresponding rain shower test chamber should be applied. After the test, disassembly or functional test should be carried out to determine whether the product has reached the corresponding level. Engineers of GTS Reliability laboratory (Shanghai GTS Testing Services Co., Ltd. www.gts-test.com) reminds manufacturers to fully consider the application environment and scope to decide the test content before testing the protective performance of the product shell. Apart of that, IP dustproof test and IP waterproof test are different items, and the test methods, equipment, and decision statement (rating) are totally different. Our engineers will anchor the corresponding test standards according to the product using conditions, environment and customer requirements, and specify the detailed and scientific IP69K waterproof level test for customers!