From time to time we have seen the big companies in the electronics world announce that their next smartphone is dust resistant and we can “dive in” with these gadgets in your pocket.
The protection /IP certification (Ingress Protection) is an international standard for measuring electronic resistance levels (phones, tablets) to dust and water. The first digit indicated in the IP code indicates the resistance level of the device against solid objects (including dust), the second digit indicates the level of water resistance.
To obtain such a code, the phone must pass independent certificates:
First number
| 0 | - No protection (sometimes X) |
| 1 | - Protection against solid objects> 50mm³ (but not against deliberate contact) |
| 2 | - Protection against solid objects> 12mm³ (fingers or similar objects) |
| 3 | - Protection against solid objects> 2.5mm³ |
| 4 | - Protection against solid objects> 1mm³ |
| 5 | - Dust protection (enough so that it does not interfere with the normal operation of the device) |
| 6 | - Total protection against dust |
Second number
| Second number | |
| 0 | - No protection (sometimes X) |
| 1 | - Protection against vertical drops of water (eg condensation) |
| 2 | - Protection against direct spray of water at a 15 degree inclination from an upright position |
| 3 | - Protection against direct spray of water at a 60 degree inclination from a vertical position |
| 4 | - Protection against direct spray of water from all directions |
| 5 | - Protection against low pressure water jets from all directions |
| 6 | - Protection against water jets with high pressure from all directions (eg a ship's deck) |
| 7 | - Protection against immersion effects between 15cm to 1m (usually 30 minutes) |
| 8 | - Protection against long periods of immersion under pressure (beyond one meter, more than 30 minutes) |
In addition to the provisions above, each manufacturer determines the exact time that their devices can withstand such conditions, so the table presents only a general description.
