What Is Water Jet?
The water jet test assesses water ingress by applying a water jet of defined flow rate and distance from a nozzle of defined diameter onto the enclosure. IPX5 and IPX6 levels are defined in IEC 60529, and the high-pressure IPX9K in ISO 20653.
Purpose of Water Jet
The purpose is to verify that the enclosure prevents water ingress during washing, hose cleaning, or high-pressure washing.
Which Products Is Water Jet Applied To?
- Automotive underbody and engine-compartment components
- Food and pharmaceutical sector equipment (washable enclosures)
- Industrial sensors and panels
- Outdoor lighting
In Which Sectors Is Water Jet Used?
Standards Related to Water Jet
- IEC 60529degree of protection provided by enclosures (IP code) test
- ISO 20653Protection against dust, water and contact (IP) in vehicles test
Water Jet Conditions
- IPX5
- 6.3 mm diameter nozzle, flow rate and distance defined in the standard
- IPX6
- 12.5 mm diameter nozzle, flow rate and distance defined in the standard
- IPX9K
- High pressure and high temperature water jet (ISO 20653)
- Time
- Standard defined time depending on surface area
Equipment for Water Jet
- Jet nozzle set (6.3 and 12.5 mm)
- Pressure and flow control system
- IPX9K high-pressure setup and water heater
- Rotating sample table
Sample Requirements for Water Jet
- The sample must be tested with the actual enclosure and sealing
- Insulation resistance must be measured before the test
- All surfaces must be exposed to the jet
- The declared IP code must be stated
Duration of Water Jet
Typically 3 – 15 minutes depending on surface area; half a working day including preparation.
Water Jet Procedure
- 1Nozzle diameter, flow rate and distance are set per the standard.
- 2The sample is placed on the table.
- 3The jet is applied to all surfaces for the defined duration.
- 4The sample surface is dried.
- 5The enclosure is opened to check for water ingress.
- 6Insulation resistance and function are re-measured.
Water Jet Acceptance Criteria
The acceptance criterion is defined in the relevant standard: no ingress of water into the enclosure in a quantity that would impair safety or function.
Evaluation of Results
The location of water ingress is assessed; gasket and cable-entry regions are critical points. An IPX9K result does not encompass IPX6.
Water Jet Report
- Applied standard and level
- Nozzle diameter, flow rate, pressure and distance
- Application time
- Water ingress observation and measurement results
Accreditation
EUROLAB holds internationally recognised accreditation obtained from accreditation bodies party to the IAF and ILAC multilateral recognition arrangements, under ISO/IEC 17025 for laboratory testing, ISO/IEC 17020 for inspection and surveillance, and ISO/IEC 17021-1 and ISO/IEC 17065 for system and product certification. This chain ensures the reports and certificates issued are accepted worldwide.
Whether this test can be offered within accredited scope depends on your product and the standard applied; since accreditation is method-based, the scope is confirmed in writing at the quotation stage.
Scope and authorisationsRelated Regulations
- Automotive OEM specifications
- Food machinery hygiene requirements
Environmental and Climatic Testing — What Does This Testing Field Cover?
The section below describes the field that the Water Jet test belongs to; the conditions and acceptance criteria of this particular test are given in the sections above. The scope specific to your product is confirmed in writing at the quotation stage.
Environmental testing shows whether a product withstands ambient factors such as temperature, humidity, pressure, solar radiation, dust, water and corrosive atmospheres. The aim is not to break the product but to bring forward, in ACCELERATED form, the conditions it will meet over its life.
Test profiles are derived from the product's real exposure, and that derivation is the actual engineering work of the field. A device operating in an enclosed office and one mounted on a pole are not tested with the same profile. The IEC 60068 series defines general methods, MIL-STD-810 military profiles, RTCA DO-160 aviation profiles and the ISO 16750 series location-based automotive profiles. A test applied without a profile selection produces both unnecessary cost and false confidence.
Temperature tests simulate three separate phenomena and all three produce different failure modes. Steady high/low temperature tests whether the material can operate at that temperature. Temperature CYCLING creates fatigue at joints between materials with different expansion coefficients — solder cracks appear here. Thermal SHOCK intensifies this effect through an abrupt transition.
There is a distinction in humidity testing too. Steady damp heat shows the diffusion of moisture into the material and its effect on insulation properties. Cyclic damp heat creates condensation: water droplets form on the cooling surface, and this is far more aggressive than dry humidity. Water ingress into enclosures, increased leakage current and corrosion usually appear in the cyclic test.
Dust and water protection is a separate body of work and is expressed by the IP code. The point to note here is that an IP test is not a DURABILITY test: it shows that protection is provided under defined and short-duration conditions, not resistance to long-term immersion or pressure washing.
The most common mistake in this family is translating a test result directly into a LIFE PREDICTION. Accelerated tests are designed for comparison and design verification; a reliable conversion between hours in a chamber and years in the field can only be established with a material-specific acceleration model calibrated against field data.
Functional monitoring determines the value of the test. Keeping a product in a temperature chamber and then switching it on does not show what happened DURING the test. In critical applications the product is operated throughout the test and its parameters are monitored; intermittent faults that appear and disappear can only be caught this way.
Method groups in this field
Temperature
Dry heat, cold, change of temperature and thermal shock; steady and cyclic profiles.
Humidity
Steady damp heat and cyclic damp heat; cycles with condensation are more aggressive.
Water and dust
IP protection tests: dripping, spraying, jets, immersion and dust tightness.
Radiation and ageing
Accelerated ageing by xenon arc and fluorescent UV, solar radiation simulation.
Pressure and altitude
Low pressure (altitude) and rapid pressure change tests.
Corrosive atmosphere
Salt spray, mixed flowing gas corrosion (simulating industrial atmospheres), mould and fungus tests.
Commonly confused in this field
- Test duration cannot be converted into field life; a conversion made without an acceleration model is misleading.
- Temperature cycling and steady temperature produce different failure modes; neither replaces the other.
- If the product is not operated during the test, intermittent faults remain invisible; functional monitoring determines the value of the test.
- IP protection is not evidence of durability; it shows protection under defined and short-duration conditions.
- A test applied without profile selection both increases cost and gives false confidence.
- The mounting and orientation arrangement affects the result; the report must document it.
Which decisions these results support
- Design verification and qualification
- Declaration of the protection class and operating temperature range
- Reproducing field failures in the laboratory and root cause analysis
- Supplier component approval
- Decisions on warranty period and storage conditions
Related Tests
Frequently Asked Questions About Water Jet
According to which standard is Water Jet made?
Water Jet is executed in scope IEC 60529 and ISO 20653. The limit values and acceptance criteria to be applied are defined in the product standard; The version valid for your product is confirmed in writing at the offer stage.
Which products does Water Jet apply to?
Mainly applied to Automotive underbody and engine-compartment components, Food and pharmaceutical sector equipment (washable enclosures), Industrial sensors and panels and Outdoor lighting. Whether your product is included in the scope is determined by examining its technical specifications and intended use.
Under what conditions is Water Jet done?
The determining parameters are: IPX5 — 6.3 mm diameter nozzle, flow rate and distance defined in the standard, IPX6 — 12.5 mm diameter nozzle, flow rate and distance defined in the standard and IPX9K — High pressure and high temperature water jet (ISO 20653). The full terms are in the "Test Conditions" section on the page and vary depending on the product standard.
What kind of sample is needed for Water Jet?
The sample must be tested with the actual enclosure and sealing, Insulation resistance must be measured before the test and All surfaces must be exposed to the jet. The number of samples is determined according to the product standard and the scope to be reported.
How long does Water Jet take?
Typically 3 – 15 minutes depending on surface area; half a working day including preparation. This duration belongs to the experiment itself; sample preparation, queuing and reporting are also evaluated. A realistic schedule for your product is given in the offer.
What is the Water Jet result called "appropriate"?
The acceptance criterion is defined in the relevant standard: no ingress of water into the enclosure in a quantity that would impair safety or function.