Typical scenario

IPX4 read as permission to immerse a device

If a portable device’s packaging says IPX4 but the seller promises operation after immersion, separate those claims. Splash protection and immersion testing concern different exposures. Preserve casing markings, closure positions and the exact seller description before testing.

What needs to be clarified

Compare the marked protection level with instructions and the promised water exposure, establish its applicability to this version, and define a technically appropriate test question.

Materials to prepare

  • Device with factory markings, port covers and packaging photographs
  • Model instructions and saved seller description with page URL
  • Submitted test report identifying sample, conditions and connector state

What to compare

Decode the marking, distinguishing an unspecified solids rating from the stated water protection. Check version, cover positions and restrictions. Compare the report conditions with the relevant exposure type. Agree any separate test programme before water contact; household immersion or a tap jet does not substitute for the appropriate test.

Possible outcome of the analysis

A claims-and-evidence table may identify contradictions, establish report applicability and define testing of a specific characteristic of the examined device version.

Limits of the conclusions

IPX4 alone does not establish immersion suitability. Damage after an arbitrary exposure does not determine initial marking compliance; legal consequences require separate assessment.

Examination of markings: metals, polymers, other materials, numbers, stamped marks and plates
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