SOILS: PHYSICAL-CHEMICAL /REF. 990017/
In the following tables you can see the dates on which the rounds take place:
| ROUND 1 |
|---|
| WEEK 43 20 October 2025 |
| Arsenic |
| Cadmium |
| Calcium |
| Chromium |
| Conductivity at 20°C |
| Copper |
| Iron |
| Lead |
| Magnesium |
| Manganese |
| Mercury |
| Nickel |
| pH |
| Potassium |
| Sodium |
| Total phosphorus |
| Zinc |
You will find detailed information in our Proficiency Testing Scheme Catalogue. [Download Catalogue]
You can find the guideline ranges of concentration here.
For any further information, please contact ielab at: comercial@ielab.es.
