Protection against dust ingress (6) and submersion in water beyond 1 meter (8), per IEC 60529.
IP68 means the device is completely dustproof and can be submerged in water. But here's the catch: each manufacturer decides exactly how deep and for how long. One brand's IP68 might mean 1.5m for 30 minutes; another's might mean 3m for 1 hour. Always check the manufacturer's specific IP68 conditions.
What this marking confirms
Not a regulatory requirement — a technical specification that manufacturers may claim voluntarily.
Higher IP rating indicates better protection, but conditions vary by manufacturer.
Indicates the device can withstand specified environmental conditions without damage.
Is this marking mandatory?
VoluntaryNot a regulatory requirement — a technical specification that manufacturers may claim voluntarily.
How to obtain this marking
- 1Test product according to IEC 60529 test methods
- 2Define specific test conditions (depth, duration, temperature)
- 3Pass dust ingress test (IP6X)
- 4Pass water immersion test (IPX8) at specified conditions
- 5Document test conditions in product specifications
How to verify
Check manufacturer's product specifications for exact IP68 test conditions. Look for IEC 60529 reference in documentation.
Common errors and misuse
Some products claim IP68 without proper testing. Look for IEC 60529 reference and specific test conditions in documentation.