First Digit (Solids)	Second Digit	Third Digit
0 - No protection	0 - No protection	0 - No protection
1 - Soilid objects over 50mm	1 - Vertically falling drops of water	1 - Impact of 150g weight dropped from 15cm
2 - Solid objects over 12mm	2 - Direct sprays of water up to 15 deg from vertical	2 - Impact of 250g weight dropped from 15cm
3 - Solid objects over 2.5mm	3 - Sprays up to 60 deg from vertical	3 - Impact of 250g weight dropped from 20cm
4 - Solid objects over 1mm	4 - Water sprayed from all directions - limited ingress	4 - (no meaning)
5 - Dust - limited ingress	5 - Low pressure jets of water from all directions - limited ingress	5 - Impact of 500g weight dropped from 40cm
6 - Dust - total, no ingress	6 - Strong jets of water from all directions - limited ingress	6 - (no meaning)
	7 - Immersion between 15cm and 1m	7 - Impact of 1.5kg weight dropped from 40cm
	8 - Long periods of immersion under pressure	8 - (no meaning)
		9 - Impact of 5kg weight dropped from 40cm
E&OE