IDR: Ingress & Durability Rating
IDR (Ingress & Durability Rating) is an independent, unofficial rating system for the dust, grit, water and wear resistance of smartphones, tablets, foldables and other portable electronic devices. It is not affiliated with IEC 60529 (the IP code).
Why IDR exists
Note (informative): IP ratings test a new device’s sealed enclosure while it sits still. Hinges and other moving parts sit outside that enclosure, and in real life a device is worn and moving when dirt and water reach it. A device can carry IP68 while its hinge fills with grit and stops closing.
Core principle
Devices are tested as used: worn first, with moving parts operating.
- All groups shall be tested on the same unit, in a fixed order: wear (U), then dust (D), then grit (G), then water (W).
- Every moving part shall be operated during dust, grit and water exposure.
- Results shall record what happened, including partial damage, not only pass or fail.
The exception for a unit that fails during preconditioning is defined in U: Usage. Test order, unit state and cleaning between groups are defined in Test Conditions. IDR tests are run at one of two test tiers: home or lab.
Status
This specification is Draft v0.3. It is unofficial and incomplete. Codes issued under a draft use version 0 (see Code Format).
| Area | Status |
|---|---|
| Code format, effect letters, IDRS | Defined; f and m thresholds [TBD] |
| D and G | Scale, doses, procedure and grading defined; thresholds provisional |
| W | Scale, ladder and grading defined; spray method, cycles per step and drying period [TBD] |
| U | Scale and U digit rules defined; wear cycle counts and procedure [TBD] |
Every undefined value is marked [TBD] and listed in Open Issues. Version history is in the Changelog.