AfterDawn: Tech news

What IP rating for dust and water resistance means

Written by James Delahunty @ 09 Dec 2022 6:35 User comments (1)

What IP rating for dust and water resistance means

When browsing mobile phones, headphones, Bluetooth speakers, etc. a device's IP classification is often mentioned. This refers to the devices waterproof and dust-resistance rating. There are a large number of IP classifications however, and most people don't know much about them. Here, we take a look at what the numbers mean.
A typical mobile phone IP rating can be, for example, IP68. Correspondingly, you often see IP57 rating in headphones. This is actually two separate numbers: the first number means dust resistance the second number means water resistance. The higher the number, the better!

The tests are carried out in official laboratory conditions and an official, approved IP classification is given to the device after the tests are concluded.

The first number of the IP classification, dust resistance, is defined as follows:

NumberWhat does it mean?
0No protection against dust at all.
1Protection against objects up to 5 cm in size, i.e. particles larger than five centimeters cannot enter the device's structures.
2Protection against 12.5 mm particles. That is, objects larger than a good centimeter cannot enter the device's structures.
3Protection against 2.5 mm particles. Small, but clearly visible, quarter-centimeter-sized particles cannot enter the device's structures.
4Protection against 1 mm particles. Pieces with a diameter of a millimeter - and pieces larger than that - cannot enter the device's structures.
5Protected from dust. In practice, no dust gets inside the device to the extent that it would hinder the operation of the device. Dust accumulations may occur.
6Perfectly protected against dust. Dustproof.




As you can see from the list, the first number of the IP classification has no meaning with, for example, mobile phones or headphones, if the number is worse than 5. Numbers smaller than that are mainly used to measure the dust tightness of industrial production equipment.

Watertightness, on the other hand, is defined as follows:

NumberWhat does it mean?
0No protection against water at all.
1Drip protection. If water drips vertically onto the device, it can withstand that water. The duration of the test is 10 minutes and it is tested in such a way that the device is on a rotating platform, where drips on the device once per minute. Corresponds to 1 mm of precipitation.
2Drip protection. Protected from dripping water, when the device is at an angle of 15 degrees. Dripping water is exposed to the device for 2.5 minutes. This is equivalent to water resistance of 3 mm in rain.
3Withstands a water jet. The device is turned at an angle of 60 degrees and water is sprayed on it with light pressure.
4Protected against splashes. The device is tested by turning it into different positions while the water jet hits the device. The device is sprayed with water from a distance of 3 meters at a pressure of 30 kPa, 12.5 liters per minute, and the test lasts at least 3 minutes. The device should still work after the tests.
6Protected against strong water jets. The test lasts 3 minutes, during which time water is sprayed into the device at 100 liters per minute from a distance of 3 meters, at a pressure of 100 kPa.
6KProtected against very strong water jets. The test is the same as the IPX6 test, but the water pressure is 1000 kPa and the water volume is 75 liters per minute.
7Withstands immersion in water. In the test, the device is immersed in a meter deep water for 30 minutes.
8Can withstand longer immersion in water. This classification is agreed together with the device manufacturer, so the conditions of the test are usually also presented in connection with the IPX8 classification. Typically, the test is done in 3 meters deep water and the duration of immersion is agreed with the device manufacturer. The device should work normally after the test.
9KWithstands strong, very hot water jets. In the test, water with a temperature of 80C is sprayed into the device with very high pressure.


As you can see from the table above, the most important water resistance ratings for headphones and mobile phones are 4-8. The highest, 9K level test is rarely used in consumer electronics, and correspondingly, the smallest water resistance protections according to the IP classification are mainly suitable for devices intended for outdoor use.



For example, IP68 means that the device is completely dustproof and can withstand immersion in water deeper than a meter. This classification can be found in several mobile phones. Similarly, the IPX7 classification is often used in headphones , which means that the device has not been tested for dust resistance, but it can withstand being immersed in a meter deep water for 30 minutes.

Written by Petteri Pyyny for fin.afterdawn.com, and translated by James Delahunty.

Tags: Guide IP
Previous Next  

1 user comment

123.11.2023 23:18

You can use chatgpt free to answer questions about all current issues

Comments have been disabled for this article.

Latest news

Sideloading apps to Android gets easier, as Google settles its lawsuit Sideloading apps to Android gets easier, as Google settles its lawsuit (19 Dec 2023 11:09)
Google settled its lawsuit in September 2023, and one of the settlement terms was that the way applications are installed on Android from outside the Google Play Store must become simpler. In the future, installing APK files will be easier.
3 user comments
Roomba Combo j7+ review - Clever trick allows robot vacuum finally to tackle home with rugs and carpets Roomba Combo j7+ review - Clever trick allows robot vacuum finally to tackle home with rugs and carpets (06 Jun 2023 9:19)
Roomba Combo j7+ is the very first Roomba model to combine robot vacuum with mopping features. And Roomba Combo j7+ does all that with a very clever trick, which tackles the problem with mopping and carpets. But is it any good? We found out.
Neato, the robot vacuum company, ends its operations Neato, the robot vacuum company, ends its operations (02 May 2023 3:38)
Neato Robotics has ceased its operations. American robot vacuum pioneer founded in 2005 has finally called it quits and company will cease its operations and sales. Only a skeleton crew will remain who will keep the servers running until 2028.
5 user comments
How to Send Messages to Yourself on WhatsApp How to Send Messages to Yourself on WhatsApp (20 Mar 2023 1:25)
The world's most popular messaging platform, Meta-owned WhatsApp has enabled sending messages to yourself. While at first, this might seem like an odd feature, it can be very useful in a lot of situations. ....
18 user comments
How to Enable Bluetooth on Stadia Controller How to Enable Bluetooth on Stadia Controller (11 Feb 2023 1:04)
Google shut down its streaming game service Stadia late last month and this means that some people have Stadia controllers lying around that seem to be of no use. That is fortunately not the ....
2 user comments

News archive