IP Testing to IEC 60529, EN 60529 and BS EN 60529

IP ratings are defined as IPXX. The initial "X" is a number from 0 to 6 indicating the degree of protection against ingress by solid objects, and the second "X" is a number from 0 to 8 indicating the degree of protection against ingress by water.

DEGREES OF PROTECTION AGAINST SOLID OBJECTS

IP0X        Non-protected

IP1X        50mm diameter and greater

IP2X        12.5mm diameter and greater

IP3X        2.5mm diameter and greater

IP4X        1.0mm diameter and greater

IP5X        Dust-protected

IP6X        Dust-tight

DEGREES OF PROTECTION AGAINST WATER

IPX0	Non-protected
IPX1	Vertically falling water drops
IPX2	Vertically falling water drops with enclosure tilted up to 15 degrees
IPX3	Spraying water
IPX4	Splashing water
IPX5	Water jets
IPX6	Powerful water jets
IPX7	Temporary immersion
IPX8	Continuous immersion

FULL LIST OF IP TESTING

IP00	IP01	IP02	IP03	IP04	IP05	IP06	IP07	IP08
IP10	IP11	IP12	IP13	IP14	IP15	IP16	IP17	IP18
IP20	IP21	IP22	IP23	IP24	IP25	IP26	IP27	IP28
IP30	IP31	IP32	IP33	IP34	IP35	IP36	IP37	IP39
IP40	IP41	IP42	IP43	IP44	IP45	IP46	IP47	IP48
IP50	IP51	IP52	IP53	IP54	IP55	IP56	IP57	IP58
IP60	IP61	IP62	IP63	IP64	IP65	IP66	IP67	IP68