IP68 and IP67 degree of protection: what is it?

On our site we periodically talk about protected smartphones to one degree or another. But not all users know what the numbers mean, which indicate the degree of protection of the smartphone. Let’s understand this interesting question right now..

Ingress Protection Rating (from the English “degree of protection against penetration”) – a system for classifying the degrees of protection of the enclosure of electrical equipment and other devices against penetration of solid objects, dust and water in accordance with the international standard IEC 60529 (DIN 40050, GOST 14254-96).

The international protection mark is marked with IP letters, as well as with two numbers immediately after the IP letters, for example, IP68, as is the case with protected smartphones. The first digit means protection against solid objects, the second – from water.

On some devices, the degree of protection is indicated directly on the case, like the Blackview BV6000:

In some cases, only one number can follow the letters, but usually two numbers are found. Please note that the degree of protection is assigned to various devices, not just smartphones. So, for example, an electrical outlet can have a degree of protection IP22 – this means that it is protected from finger penetration, and in addition, can not be damaged vertically (or almost vertically) by dripping water.

The highest degree of protection now is IP69-K, product housings that can withstand high-temperature high-pressure cleaning.

As we found out above, the first digit means protection against the penetration of foreign objects. So, if the first digit is 0, then the shell does not provide protection against access to hazardous parts, or from the penetration of external solid objects. What do the other numbers mean:

  • IP1x – protection against penetration of objects> 50 mm (large body surfaces, including arms).
  • IP2x – protection against penetration of objects> 12 mm (fingers and other similar objects).
  • IP3x – protection against penetration of objects> 2.5 mm (tools, cables).
  • IP4x – protection against penetration of objects> 1 mm (wires, bolts, nails).
  • IP5x – partial protection against dust (a certain amount of dust can penetrate into the case, which does not interfere with the operation of the device).
  • IP6x – full protection against dust, does not allow dust to penetrate inside the case.

The second digit means protection against water ingress. If the second digit is 0, then there is no protection against water. Other numbers mean:

  • IPx1 – vertically dripping water should not interfere with the operation of the device.
  • IPx2 – vertically dripping water should not interfere with the operation of the device, and also if it is deviated from the working position by an angle of up to 15 degrees.
  • IPx3 – protection against rain or spray vertically or up to 60 degrees to vertical.
  • IPx4 – protection against splashes that fall from any direction.
  • IPx5 – protection against water jets from any direction.
  • IPx6 – protection against water jets or waves from any direction.
  • IPx7 – protection for short-term immersion in water to a depth of 1 m.
  • IPx8 – protection when completely immersed in water to a depth of more than 1 m.

So, a smartphone with a degree of protection IP68 is completely protected from dust, and also has protection when completely immersed in water to a depth of more than 1 meter. As for the shockproof case, which is often endowed with such smartphones and phones, its degree of protection is not indicated, according to international standards.