Sample assessment
The starch trial focuses on visible colour. A visual endpoint is useful for this question but cannot stand in for a thermal or molecular analysis. The laboratory test record documents this preparation only; applying the method to another batch requires a matched trial.
Recorded objective
Observe whether the powder changes colour during milling.
Equipment and selection
The recorded planetary machine is XQM. The corresponding TENCAN family is the Vertical square planetary ball mill. The jar volume identifies the test container and does not establish an exact machine variant or production capacity. Equipment association follows the recorded machine designation.
Test setup
| Recorded planetary machine | XQM |
|---|---|
| Documented setup | 250 mL agate jar with standard zirconia balls; 27 g starch powder; dry milling; speed setting 450. |
| Recorded operating cycle | Run 5 / pause 1; units not stated in mode field |
Speed values are reproduced as recorded settings. A rotational unit and planetary-disc versus jar-speed basis are not stated, so these numbers are not labelled rpm.
Recorded procedure and results
The starch was processed for 30 minutes. The recorded observation was that the colour had not changed. The test record supplies no particle-size distribution, temperature, instrumental colour value or chemical analysis.
Interpretation
The requested visual observation was obtained at the stated endpoint. An unchanged visible colour is not evidence that molecular structure, thermal properties or every other characteristic remained unchanged. This is a colour-observation trial, not a validated fine-grinding specification.
Practical precautions
Define lighting and a colour reference for a repeat, or use an instrumental colour method if small differences matter. Measure temperature independently and check jar/media carryover before interpreting appearance as a material-property result.
TENCAN alternatives to evaluate
For follow-up comparison, consider the TENCAN Laboratory Full-Directional Planetary Ball Mill. For starch, a matched QXQM trial can test whether changing orientation affects starch colour under defined illumination and temperature logging. Keep sample mass, media and sampling times controlled. This is a proposed comparison; the test record does not demonstrate a superior result for that alternative. Confirm jar compatibility and the permitted complete loaded mass before selecting a configuration.
A TENCAN air-cooled planetary configuration can also be evaluated if a defined thermal limit is needed. Agree the measurement location and compare actual sample temperatures; no cooling benefit was measured in this trial.
Procedure records XQM; related product is the corresponding tested machine family. Exact variant is not inferred from jar size.
About this trial
TENCAN laboratory trial, 2024. Observations above come from this experimental record; selection considerations and proposed comparisons are engineering interpretation. Results apply to this sample and recorded conditions.