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Ingress Protection: Immersion Water Tests (IPX7 and IPX8)

Ingress protection testing tests the level of protection an enclosure provides against intrusions. One such set of ingress protection tests involves immersing the equipment under test (EUT), in water. These tests are numbered IPX7 and IPX8. The first digit, represented by the “X”, ranges from 0 to 6 and specifies the protection from solid particles. The second digit, in the case of the immersion ingress protection test, would always be a 7 or an 8.

Below is a brief description of the two types of immersion water tests included in ingress protection testing per IEC 60529.

IPX7 Testing:

  • Defined as immersion in up to 1 meter of water.
  • The requirement is that the ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to one meter of submersion).
  • The test details include a test duration of 30 minutes and a water depth of less than one meter.

IPX8 Testing:

  • Defined as immersion in over 1 meter of water.
  • The requirements are typically set by the manufacturer but normally mean:
    • The equipment is suitable for continuous immersion in water under specific conditions which shall be specified by the manufacturer.
    • Typically, the equipment is hermetically sealed. However, with certain types of equipment, it can mean that water can enter but only in such a manner that it produces no harmful effects.
  • The test duration is specified by the manufacturer.

For a complete list of all of the possible IPX7 and IPX8 ingress protection code combinations, as detailed in IEC 60529, please see the chart at the bottom of this page.

What sets Keystone Compliance’s IPX7 and IPX8 immersion testing apart is our experience in helping manufacturers determine ingress points in their products and also identifying potential solutions. We also have significant expertise in interpreting the standards, which often provides manufacturers with flexibility in determining acceptable amounts of ingress. Just because some liquid may enter an enclosure, does not automatically mean that the unit has not met the requirements. If the unit that requires testing is too large to move, no problem. We have experience completing ingress protection testing at the customer’s facilities.

Why is Keystone Compliance the right IP Code lab to complete your ingress testing? Our customers enjoy our short lead times, ability to explain the process and testing requirements, consultative engineering support when failures occur and affordable pricing. It is what has made us one of the fastest growing companies in the country and most respected test labs in the region.

Contact us to receive a quote for ingress protection testing and see why we are the only ingress protection lab for so many manufacturers from around the country.

Below is a list of all of the IPX7 and IPX8 IP Code combinations along with a brief description of each test:

IP Rating

Degree of Protection Against Solid Foreign Objects

Degree of Protection Against Water

IP08

Not Protected

Immersion beyond 1 m

IP18

Solid object >50 mm

Immersion beyond 1 m

IP28

Solid object >12.5 mm

Immersion beyond 1 m

IP38

Solid object>2.5 mm

Immersion beyond 1 m

IP48

Solid object>1 mm

Immersion beyond 1 m

IP58

Dust protected

Immersion beyond 1 m

IP68

Dust tight

Immersion beyond 1 m

IP07

Not Protected

Immersion up to 1 m

IP17

Solid object >50 mm

Immersion up to 1 m

IP27

Solid object >12.5 mm

Immersion up to 1 m

IP37

Solid object>2.5 mm

Immersion up to 1 m

IP47

Solid object>1 mm

Immersion up to 1 m

IP57

Dust protected

Immersion up to 1 m

IP67

Dust tight

Immersion up to 1 m