Testing
On the production line, quality often only becomes visible when something goes wrong: pressure deviations, a leaking valve, or a product that does not perform properly. Without proper control, these issues are only detected late, leading to rejects or complaints. Testing is therefore used to maintain control over the process while the line keeps running.
Testing is the verification of critical parameters to determine whether the final product meets the required specifications. Traditionally, this is done through sampling at fixed intervals, where part of the production is checked. This provides an indication of quality, but still allows room for deviations between measurements.
In-line testing
More and more often, in-line testing is used, where every aerosol can is checked during production. This makes it possible to detect deviations immediately and make adjustments, without relying on sampling.
Continuous measurement provides insight into process behavior. Small variations in, for example, pressure or sealing become visible before they lead to problems. Depending on the application, this helps reduce rejects and improve process stability.
In some situations, in-line testing can also replace traditional steps. For example, a pressure test can serve as an alternative to water bath testing, provided it meets the applicable requirements. This is assessed per situation.
Testing Equipment
The type of tests performed depends on the product and the risks within the process. Common checks include:
- Pressure measurement in the aerosol can after filling
- Detection of gas leakage, for example due to deviations in crimping or valves
- Water bath testing, applied manually or inline
In addition, other parameters may be measured depending on what is critical in production. The setup of the testing step is aligned with the line and the requirements of the final product.
How testing is integrated into the process is determined together. This can range from standalone checkpoints to fully integrated systems, depending on the desired level of control and the structure of the production line.
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