Details on IP testing for the dust and waterproof Nautilus cable assemblies can be found here.
Nautilus Coaxial Connectors are tested to the following specifications:
IP6x Dust tight – no particle ingress
IPx7 Waterproof for 30 minutes up to 1 meter underwater.
IPx8 Waterproof for 48 hours at 1 meter underwater.
IPx8 Waterproof for 12 hours at 5 meters underwater.
Pressure test – 1 bar =14.5 PSI (pounds per square inch) for 10 seconds.