How to know the level of tightness of a product ?

Definition of the standard of sealing, commonly called IP standard

To help characterize the level of tightness of a product, an international standard has been defined. This standard defines several levels (from 0 to 9) to which resistance levels correspond to solid or liquid elements.

This standardization is expressed in the form of an IPXY coding where X corresponds to the level of protection against solid bodies and Y against water.

For example: IP67

When the protection against solid bodies is not specified, one can also find a type IPX5 codification

Definition of different levels of protection

1st digit: Protection against solids.

0 No protection
1 protection against solid foreign objects (diameter from 50 mm)
2 protection against solid foreign objects (diameter from 12.5 mm)
3 protection against solid foreign objects (diameter from 2.5 mm)
4 protection against solid foreign objects (diameter from 1.0 mm)
5 dust protection
6 hermetic to dust

2nd digit: Protection against water.

0 no protection
1 protection against vertical water drops
2 protection against drops of water casing inclined at 15 °
3 Protection against water fallout resulting from spraying, inclination of 60 ° to the vertical
4 protection against splashing water on all sides
5 protection against jets of water whatever the projection angle
6 protection against strong water jets
7 protection against temporary immersion in water (the duration must then be specified in the product specifications)
8 protection against lasting immersion in water