In our daily life, lots of items around us are indicated with different IP degree. Lots of us wondering, what is mean? If the product label marked as IP67, what is 6 stand for? What is 5 stand for?
IP (Ingress Protection) rating chart, for example, IP67
||First Digit: Solids Protection
||Second Digit: Liquids Protection
According to international standard IEC 60529, IP Code ( also known as International Protection Rating, Ingress Protection Rating) classifies the degrees of protection provided against the intrusion of solid objects and liquid objects.
If a product marked as IP67, from the first numeric no.6, we know the product is dust protected. Then according to second numeric no. 7, that means the product is protected from water immersion up to 1m.