SOLIDS IN WASTE WATER /REF. 990016/
In the following tables you can see the dates on which the rounds take place:
| ROUND 1 | ROUND 2 |
|---|---|
| WEEK 7 9th February 2026 |
WEEK 19 4th May 2026 |
| Dissolved solids at 105ºC* | Dissolved solids at 105ºC* |
| Suspended solids | Suspended solids |
| Fixed suspended solids* | Fixed suspended solids* |
| Volatile suspended solids* | Volatile suspended solids* |
| Settleable solids* | Settleable solids* |
| Total solids at 105ºC* | Total solids at 105ºC* |
| Fixed total solids* | Fixed total solids* |
| Volatile total solids* | Volatile total solids* |
* The parameters with an asterisk are out of the accreditation scope of ENAC.
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.
