Waterproof & Dustproof Grade IPXX and Electronic Products Waterproof Grade JIS

The Waterproof Level of Electronic Measuring Instruments reflects also the capacity of moisture-proof and dust-proof. Particularly the outdoor activities, they are often in badly environment as high humidity or more dust and sand. It is extremely important for equipment seal and ability of waterproof to guarantee the equipment operating safely and life.  International relative organization stipulate for IEC529 Standards. In order to adapt to this, Japanese Industrial Standards stipulate that the protection of waterproof electronic equipment are on a scale of 0-9, respectively IPX1, IPX2…… said.

Grade	Name	Definition
0	No protection
1	Prevent dropping water I	No harmful influence dropping water at vertical direction.
2	Prevent dropping water II	No harmful influence dropping water at 15°direction to the vertical.
3	Prevent pour	No harmful influence being rained at 60° direction to vertical.
4	Prevent splash	No harmful influence being splashed water at any direction.
5	Prevent spurt	No harmful influence being spurted water at any direction.
6	Rainproof	Not enter inside water being spurted at any direction.
7	Prevent immersion	Not enter inside in the water under specified conditions.
8	Under the water	Work normally in the water under definite pressure for long periods.
9	Prevent moisture	Work normally under more than 90% in the relative humidity.

International Industry Standards IP and Japanese Industrial Standards JIS, both waterproof Grade is close, nine points from 0-8, IP Grades stipulate the dustproof as same.

IPxx Waterproof & Dustproof Grade

Dustproof Grade( the first “X”)	Waterproof Grade( the second “X”)
0 ：No protection	0 ：No protection
1 ：To prevent solid from intrusion	1 ：No influence dropping water on crust
2 ：To prevent medium-sized solid from intrusion	2 ：No influence dropping water on crust with 15°sloping.
3 ：To prevent intrusion into the small solid	3：No influence raining at the 60°direction on the crust.
4 ：To prevent objects larger than 1mm solid from entry	4 ：No influence splashed liquid on the crust at any direction.
5 ：To prevent accumulation of harmful dust	5 ：No harm flushed by water
6 ：To prevent completely dust from entry	6 ：Be used in the cabin
	7 ：Inundate under water for a short time(1m)
	8 ：Inundate under water for a long time with definite pressure

For Example: a scale or meter instrument is marked as IP68, it shows that the product can completely prevent dust from entering, and will be inundated under water with definite pressure for long period of time.

 

The requirements on the experiment of IPXX Waterproof Grade

 (1) IPX 1

Method: Vertical Dripping Test

Test Equipment: Device of Dripping Test

Samples position: the sample is put on the rotary sample platform at the speed of 1r/min. There is not more than 200mm during the top of sample and water gap.

Test Conditions: dripping capacity of 10.5 mm / min

Duration: 10 min

 

 (2) IPX 2

Method: Tilt 15° Dripping Test

Test Equipment: Device of Dripping Test

Samples position: sample surface with one 15 angle into the vertical line, not more than 200 mm from top of sample to water dripping mouth. Once one side is tested, another side for testing, total four times.

Test Conditions: dripping capacity of 30.5 mm / min

Duration: 4 × 2.5 min (10 min)

 

 (3) IPX 3

Method: Pouring water Test

Methods:

a. Pouring Water Test by Swinging Tube.

Test Equipment: Pouring water test device.

Sample Position: select the tube with appropriate radius. Make the sample on the diameter of the tube. Place the sample on the stage and make distance from top to the mouth less than 200mm.

The stage should not be rotated.

Test Conditions: Water flow should be calculated by the blowholes. Each blowhole is 0.07L/min. while pouring water. Make water spray to the sample, on each side of the center point of the tube with 60° radian. The sample which is being tested should be placed on the semi-circle center of the tube. Swing tube swings 60° on each side and along with the vertical line, totally 120°. It takes 4s for each swing (2x120°).

Duration: 10min continuously.

b. Pouring water test by nozzle

Test Equipment: Pouring and Splashing device by hand

Sample Position: Make the parallel distance between the 300-500mm from the top to the spray mouth.

Test Condition: Install the baffle which is with the balance article while proceeding in the test. Water flow should be 10L/min.

Duration: At least 5min if being calculated by the area of the sample surface. Each square meter is 1min (excluding the installation area).

 

 (4) IPX 4

Method: Splashing Water Test

Test Method:

a.  Splashing Water by Swing Pipe Test

Test Equipment and Placed: as the same as IPX3 a

Test Conditions: In addition to the latter conditions, as the same as the IPX 3 a; The acreage to be splashed water is 90° on each side of middle of swing pipe, the sample is splashed by the blowhole. The sample is placed in the center of swing pipe’s half circle. Along the two side of vertical line, swing pipe is swinged by 180°, a total of about 360°. The time is about 12s each swing(2 × 360 °).

Test Time: the same as IPX3 b, (10 min).

b.  Splashing Water by Nozzle Test

Test Equipment and Placed: the same as IPX 3 b

Test Conditions: remove the baffle-board installed on equipment with balance weights, others are as same as IPX 3 b;

Test Time: the same as IPX 3 b. It is that to be calculated according to the surface acreage of sample crust, 1 min per square meter (not include the area of installation) at least 5 min.

 

 (5) IPX 5

Method: Spray Water Test

Test Equipment: diameter of nozzle is 6.3 mm

Test Conditions: the distance is 2.5m~3m from the sample to nozzle, water flux is 12.5L/min (750L/h)

Test Time: Calculate the surface acreage of sample crust, 1 min per centiare , (not include area of installation)at least 3 min.

 

 (6) IPX 6

Method: Spray Strongly Water Test

Test Equipment: diameter of nozzle is 12.5 mm

Test Conditions: the distance is 2.5m~3m from the sample to nozzle, water flux is 100L/min (6000L/h)

Test Time: Calculate the surface acreage of sample crust, 1 min per centiare , (not include area of installation) at least 3 min.

 

 (7) IPX 7

Method: Immersion in Water at Short Time Test

Test Equipment and Conditions: Water tank. The depth of tank, when the sample is put in water tank, the distance from the bottom of sample to surface of water is at least 1m, and the distance from the top of sample to surface of water is at least 0.15m.

Test Time: 30 min

 

 (8) IPX 8

Method: Diving at Long Time Test

Test Equipment, Conditions and Time: Be decided by supplier and demander, the extent should be higher than IPX7.

 

NOTE: In addition, many outdoor electronic products are being stressed the capability of floating.