Recording proficiency test participation¶
In ConCertainty, you can store the results of your participation in proficiency tests. The recorded data is then available for determining measurement uncertainty.
A proficiency test is organized by an (usually external) organizer. The participating laboratories receive a sample with an unknown or known content, carry out the analysis, and submit their results. The organizer evaluates all submissions and provides each laboratory with an evaluation report. From this report, you extract the values that you enter into ConCertainty.
Before you can record a proficiency test participation, at least one test profile must exist.
Proficiency tests overview¶
Open the Proficiency tests area under Data basis in the left-hand menu. The overview lists all recorded proficiency test participations. Using the search criteria, you can narrow down the display by organizer, test profile, and date. Select Search to load the results, or Reset to clear the search criteria.
Recording a new proficiency test participation¶
Select Create proficiency test participation.
Step 1: Enter basic data¶
Fill in the basic data of the proficiency test participation:
- Name of the proficiency test – e. g. the designation from the organizer's evaluation report. The identifier is automatically generated from the entered name and can be adjusted before saving.
- Date – the temporal classification of the proficiency test. Which date you use – e. g. the date of the analysis or the date of the evaluation – is up to your own determination.
- Organizer – the organization that conducted the proficiency test. If the organizer does not yet exist, you can create it directly in the selection field.
- Test profile – the test profile under which the analysis was carried out. After selection, the associated parameters are loaded in the Parameter measured values area.
- Sample ID – the identifier assigned by the organizer for the sample (optional)
- Device – the analysis device used (optional). If the device does not yet exist, you can create it directly in the selection field.
- Remarks – free text field for additional notes (optional)
Info
Once saved, the identifier cannot be changed. For more information on this, see Identifiers.
Step 2: Enter parameter measured values¶
In the Parameter measured values area, all parameters of the selected test profile appear. Enter the corresponding values from the organizer's evaluation report for each parameter:
| Field | Meaning |
|---|---|
| ċ (own value) | Your own measured value for this parameter |
| c_ass (consensus value) | The consensus or target value determined by the organizer |
| s_R,i (reproducibility standard deviation) | The reproducibility standard deviation specified by the organizer |
| n_p,i (participants) | The number of participants who submitted values for this parameter |
Step 3: Save proficiency test participation¶
Select Create to save the proficiency test participation. It will then appear in the proficiency tests overview.
Editing a proficiency test participation¶
An existing proficiency test participation can be opened and edited via the overview. All fields – including the parameter measured values – can be changed afterward. The identifier cannot be changed once it has been saved for the first time.