MEDIWISH MZS-5635 is a ready-to-use colorimetric indicator vial for routine monitoring of cavitation activity in ultrasonic cleaning baths. Under the test conditions specified in the current Instructions for Use, the solution changes from greenish blue to transparent yellow.
Designed for ultrasonic cleaners operating at frequencies of 35 kHz or higher and bath temperatures from 18 °C to 70 °C. Supplied as 25 indicator vials per box.
Test scope: the indicator evaluates cavitation activity at the selected test location. It does not directly verify instrument cleanliness, residual protein removal, disinfection or sterilization.
Routine Monitoring of Ultrasonic Cavitation Activity
MEDIWISH MZS-5635 Ultrasonic Cavitation Activity Indicator Vials are ready-to-use colorimetric tests intended for routine monitoring of cavitation activity in ultrasonic cleaning baths.
The product is designed for ultrasonic cleaners operating at frequencies of 35 kHz or higher and bath temperatures from 18 °C to 70 °C.
Important test scope: MZS-5635 indicates cavitation activity at the location where the vial is tested under defined cycle conditions. It does not directly verify soil removal, residual protein, detergent concentration, disinfection or sterilization.
How the Indicator Works
Each sealed vial contains a reactive greenish-blue solution and glass beads. During an ultrasonic cleaning cycle, cavitation-induced movement of the beads promotes the colorimetric indicator reaction.
When the endpoint specified in the current Instructions for Use is reached, the solution changes from greenish blue to transparent yellow.
The standard result is interpreted visually. A dedicated electronic reader is not required. MZS-5635 does not provide numerical acoustic measurements in decibels or another physical measurement unit.
What MZS-5635 Helps Monitor
- Presence of cavitation activity at a selected location in the ultrasonic cleaning bath
- Changes in ultrasonic bath performance during routine monitoring
- Potentially inconsistent areas when several defined test positions are evaluated
- Ultrasonic performance following equipment installation, maintenance or repair
- Repeatability of the process when the same test conditions are maintained
Factors That Can Affect the Result
The observed response can be influenced by the test position, cycle duration, bath temperature, liquid level, degassing, cleaning chemistry, load configuration and equipment condition.
Results should therefore be compared only under standardized conditions and interpreted according to the current MEDIWISH Instructions for Use and the facility's approved monitoring procedure.
Recommended Test Workflow
- Prepare the ultrasonic cleaner according to the equipment manufacturer's instructions and the facility procedure.
- Confirm the required liquid level, cleaning chemistry, bath temperature and degassing conditions.
- Record the ultrasonic cleaner identification, selected cycle, test date and indicator lot number.
- Place the sealed MZS-5635 vial at the defined test location using the position and orientation specified in the current IFU.
- Run the specified ultrasonic test cycle without changing the defined test conditions.
- Remove the vial carefully and compare the solution with the approved MEDIWISH color reference.
- Document the test position, cycle parameters, observed result, product lot, expiry date and operator.
Where the approved procedure permits multi-point monitoring, separate vials may be positioned at defined locations to compare the response across different areas of the ultrasonic bath.
Result Interpretation
| Indicator state | Visual appearance | Interpretation |
|---|---|---|
| Before processing | Greenish-blue solution | Unprocessed indicator |
| Specified endpoint reached | Transparent yellow solution | The specified indicator endpoint was achieved at the test location |
| Incomplete or delayed response | Partial or absent color change | Review the process conditions and equipment performance according to the approved procedure |
Do not label a result simply as “PASS” unless the acceptance time, test cycle, temperature, position and other applicable conditions have been defined in the current IFU.
Typical Applications
- Hospital sterile processing departments and CSSDs
- Dental instrument reprocessing areas
- Clinics and ambulatory surgical facilities
- Medical device production environments
- Pharmaceutical production and laboratory facilities
- Laboratory ultrasonic cleaning baths
- Industrial precision-cleaning processes
- Equipment installation, servicing and troubleshooting
Important Limitations
- MZS-5635 is a colorimetric indicator and not a calibrated electronic acoustic measuring instrument.
- The product does not provide numerical cavitation values in dB, W/cm² or another physical measurement unit.
- It does not directly demonstrate removal of blood, protein or other contamination from instruments.
- It does not verify the concentration or suitability of the cleaning chemistry.
- It does not verify thermal disinfection or sterilization.
- It does not replace equipment maintenance, cleaning efficacy tests or residual protein monitoring.
- Use only within the operating conditions and acceptance criteria stated in the current Instructions for Use.
Packaging and B2B Supply
Reference: MZS-5635
Standard packaging: 25 indicator vials per box
Brand: MEDIWISH
Manufacturer: Mediwish Co., Ltd.
Country of origin: China
Distributor, OEM and private-label configurations are available subject to order requirements. Options may include customized branding, multilingual packaging, market-specific documentation and agreed remaining shelf life at dispatch.
Quality Management and Documentation
Manufactured under a quality management system certified to ISO 13485:2016 by NQA certificate, Certificate No. 131860. The certificate and applicable scope are available in the Documents section.
Product documentation may include the current Instructions for Use, Technical Data Sheet, color reference, Safety Data Sheet and applicable lot-specific quality records.
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