ISO16750-4 Clause 4.2 Splash Water Test Chamber Simulating Thermal Shock Testing On Vehicle Caused By Ice Water
Water Splash Test Chamber – ISO 16750-4 Clause 4.2 compliant ice water splash test chamber simulates thermal shock caused by ice water on vehicle parts in shallow water areas, performing 100 cycles of heating to Tmax followed by 3-second ice-water splash.
- Standard Compliance: ISO 16750-4 Clause 4.2 – water splash test chamber for automotive thermal shock
- Test Cycles: 100 cycles
- Holding Time at Tmax: 1 h or until DUT temperature is stable
- Conversion Duration: <20 s (manual conversion between storage and splash temperature)
- Test Liquid: Deionized water + 3% pure Arizona dust or 5% sodium
- Water Temperature: 0~+4°C
- Water Flow: 3 L–4 L / 3 s (jetting process)
- Spray Distance: 325 ± 25 mm (spray width exceeds DUT width)
- Control System: PLC with touchscreen for precise timing and monitoring
- MOQ: 1
- Delivery Period: 20 working days
Water Splash Test Chamber Description
ISO 16750-4:2023 Ice Water Shock Test Chamber for Splash Water Testing
The KingPo ISO 16750-4 Ice Water Shock Test Chamber is designed to support the splash water test specified in ISO 16750-4:2023, Clause 5.4.2. The system exposes a heated automotive electrical or electronic component to a controlled cold-water splash, reproducing the rapid thermal shock that may occur when a vehicle travels through cold water during winter operation.
Test-fluid temperature, splash volume, application duration, nozzle-to-DUT distance and cycle count can be controlled according to the agreed test plan. The equipment is intended for automotive component qualification, design validation, laboratory testing and production quality assurance.
Key Information
| Referenced Standard | ISO 16750-4:2023, Clause 5.4.2 |
| Test Method | Cold-water shock — splash water test |
| Typical Test Cycles | 100 cycles |
| Splash Duration | 3 seconds |
| Test-Fluid Temperature | 0°C to +4°C |
| Typical Splash Volume | 3 L to 4 L per 3-second splash |
| Nozzle-to-DUT Distance | 325 ± 25 mm |
| DUT Orientation | Representative of the vehicle installation position |
| Control System | PLC with touchscreen interface |
Product Overview
The ISO 16750-4 splash water test evaluates the resistance of automotive electrical and electronic components to rapid cooling caused by cold water contacting a hot component. This condition may occur when a vehicle is operated on wet roads during winter.
Rapid temperature change can produce different rates of thermal contraction in housings, seals, connectors, potting materials and internal assemblies. Potential failure modes include mechanical cracking, seal failure, loss of tightness, water ingress and electrical malfunction.
The KingPo system combines high-temperature conditioning, controlled cold-water preparation and repeatable splash application. Test cycles, conditioning time, splash duration and operating sequence can be programmed through the touchscreen controller. The final configuration should be selected according to the DUT dimensions, mass, mounting orientation, operating mode and applicable customer specification.
How Does the ISO 16750-4 Splash Water Test Work?
- The DUT is installed in an orientation representative of its position in the vehicle.
- The DUT is heated to the specified maximum temperature.
- The DUT is held at the specified temperature for the required duration or until temperature stabilization is achieved.
- The heated DUT is exposed to a controlled cold-water splash.
- The operating mode and functional condition are evaluated according to the agreed test plan.
- The sequence is repeated for the specified number of cycles.
The DUT temperature, operating mode, splash directions and acceptance criteria are not determined by the chamber alone. They must be defined in the applicable product specification and customer-approved test plan.
Professional Construction and Control Features
- Closed-loop control of cold-water temperature and splash delivery
- Programmable test cycles, conditioning time and splash duration
- Adjustable nozzle-to-DUT distance for repeatable positioning
- Splash arrangement designed to cover the required DUT width
- PLC touchscreen interface with test-status display
- Configurable DUT mounting structure and splash direction
- Overload, short-circuit and electrical leakage protection
- Optional DUT power supply and signal connection interfaces
- Manual or automatic transfer configuration, subject to system design
- Custom workspace and load capacity for different automotive components
Technical Parameters
Typical Test-Method Parameters
| Parameter | Typical Specification |
|---|---|
| Referenced Standard | ISO 16750-4:2023, Clause 5.4.2 |
| Test Type | Cold-water shock — splash water method |
| Number of Cycles | Typically 100 cycles; confirm against the applicable test plan |
| High-Temperature Holding Time | Typically 1 hour or until DUT temperature stabilization is achieved |
| Transition Duration | Less than 20 seconds for the applicable manual-transfer method |
| Test Fluid | Deionized water; optional additives only where required by the applicable standard edition and agreed test specification |
| Test-Fluid Temperature | 0°C to +4°C |
| Splash Volume | Typically 3 L to 4 L during a 3-second splash |
| Splash Duration | 3 seconds |
| Nozzle-to-DUT Distance | 325 ± 25 mm |
| Splash Coverage | Configured to cover the required DUT width |
| DUT Orientation | As installed in the vehicle or as defined by the test specification |
Note: The values above describe typical splash-water test conditions. The applicable standard edition, DUT classification, operating mode and customer specification must be confirmed before the equipment configuration and test procedure are finalized.
Chamber and Control Parameters
| Parameter | Specification |
|---|---|
| Control System | PLC with touchscreen interface |
| Programmable Functions | Cycle count, conditioning time, splash duration and sequence timing |
| DUT Mounting | Customizable according to DUT dimensions, mass and installation orientation |
| Transfer Method | Manual or automatic, depending on the selected configuration |
| Safety Protection | Electrical leakage, overload and short-circuit protection |
| Power Supply | 380 V, 50/60 Hz; other supply conditions available on request |
| Workspace and Load Capacity | Configured according to the DUT size and mass |
Test-Fluid Configuration
The basic test medium is deionized water. Where required by the applicable standard edition or customer specification, the fluid-circulation system may be configured for approved test-dust or sodium-chloride additives.
Fluid composition must be confirmed before manufacturing because additives can affect the pump, tank, pipework, valves, filtration system and nozzle. Different additives must not be assumed to be used simultaneously unless specifically required by the approved test procedure.
DUT and Configuration Requirements
ISO 16750-4:2023 includes considerations for different DUT sizes and masses. A chamber suitable for a small sensor or connector cannot automatically be assumed to support a large battery enclosure, power-electronics assembly or other heavy component.
Before configuration, please provide:
- DUT name and intended vehicle installation location
- DUT dimensions and total mass
- Required ISO 16750-4 edition and test clause
- Specified maximum DUT temperature
- Required splash directions and mounting orientation
- DUT operating mode during conditioning and splashing
- Electrical power, signal and monitoring connections
- Required test-fluid composition
- Manual or automatic transfer preference
- Required data recording and report format
- Available installation space, power supply, water supply and drainage
Applications
- Automotive Electronic Control Units – Evaluation of enclosure and sealing performance under rapid cold-water exposure
- Sensors and Connectors – Verification of resistance to cracking, seal movement and water ingress
- Lighting and Power Electronics – Thermal shock testing of housings, joints and electrical interfaces
- Vehicle Components Installed in Splash Areas – Testing in representative mounting orientations and splash directions
- Automotive R&D – Comparison and optimization of materials, seals and enclosure designs
- Quality Assurance – Repeatable verification against an approved internal or customer test plan
- Independent Laboratories – Controlled execution and documentation of ISO 16750-4 splash water tests
Business and Procurement Benefits
- Controlled and repeatable cold-water splash conditions
- Reduced dependence on manual timing and water preparation
- Configurable workspace, mounting fixtures and splash directions
- Improved consistency between development and verification tests
- Support for powered DUT testing and signal monitoring
- Documented equipment settings for traceable test execution
- Optional third-party calibration support at additional cost
- Remote technical guidance and installation support
- One-year standard equipment warranty
This equipment provides the controlled conditions needed to perform the selected test method. It does not independently certify a DUT as compliant with ISO 16750-4. Qualification depends on the selected conditions, DUT operating mode, acceptance criteria, test execution and documented results.Documentation and Calibration Support
Available documentation may include the operation manual, electrical drawings, maintenance instructions, factory inspection records and equipment calibration documents. Third-party calibration can be arranged according to the agreed measurement scope and is quoted separately.
For current edition and scope information, refer to the official ISO 16750-4:2023 standard page.
Compliance & Regulatory Assurance
This equipment is strictly designed and manufactured in accordance with ISO 16750-4 Clause 4.2 for ice water splash testing of automotive parts. It simulates thermal shock caused by ice water on vehicle components in shallow water areas, thereby ensuring long-term reliability and safety in automotive applications.
For the complete technical overview, scope, and detailed requirements of the ISO 16750 series (including Clause 4.2 ice water splash test), refer to the ISO 16750 series overview published by the International Electrotechnical Commission and maintained as a technical reference.
Technical Inquiry for ISO 16750-4 Water Splash Test Chamber
KingPo specializes in automotive environmental and IP testing equipment. If you require precise ice water splash and thermal shock testing according to ISO 16750-4 Clause 4.2 for vehicle parts, our engineering team can provide customized configurations and technical support.
The Core Value We Deliver to You
- Precise simulation of ISO 16750-4 Clause 4.2 ice water splash conditions
- 100 cycles with accurate temperature holding and <20 s conversion
- 7-inch touchscreen for real-time monitoring and easy operation
- Robust chamber with safety protections for reliable long-term use
- Full compliance with ISO 16750-4 automotive testing requirements
Tell us your automotive part types, required test parameters or test volume — our engineering team will reply with tailored recommendations within 24 hours.
Technical Parameters
| Cycles | 100 |
| The holding time of the specified temperature Tmax th | 1h or until the DUT temperature is stable |
| Conversion duration | <20s (manual conversion between DUT storage temperature and splash temperature) |
| Test liquid | Deionized water + 3% pure Arizona dust or 5% sodium |
| Water temperature | 0~+4°C |
| Water flow | 3L-4L/3s (jetting process) |
| Spout to DUT distance | 325 ± 25mm (provided water should exceed the width of the DUT) |
| Working mode (ISO16750-1) | See Figure 5 |
| Direction of the DUT | Same as loading direction |
Water Splash Test Chamber Detail Display
Water Splash Test Chamber FAQs
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