WASTEWATER: PHYSICAL-CHEMICAL /REF. 990004/

In the following tables you can see the dates on which the rounds take place:

 

ROUND 1 ROUND 2 ROUND 3
WEEK 6
6 February
WEEK 18
2 May
WEEK 40
2 October
Aluminium Anionic surfactants Boron
Ammonium Cadmium Conductivity at 20°C
Chlorides Total organic carbon (TOC) Biological oxygen demand (BO5D)
Chromium Chromium VI Chemical oxygen demand (COD)
Biological oxygen demand (BO5D) Biological oxygen demand (BO5D) Iron
Chemical oxygen demand (COD) Chemical oxygen demand (COD) Kjeldahl nitrogen
Fluorides Total phosphorus Total nitrogen
Nitrates Orthophosphates pH
Suspended solids Suspended solids Lead
Toxicity Zinc Suspended solids

 

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.