Coming from WWTP with urban or industrial origin, these reference materials are provided in containers of 65 mL containing dry and sieved sludge.
The available parameters for this kind of matrix are the following ones:
| Aluminium | Iron | Kjeldahl Nitrogen |
| Arsenic | Magnesium | pH |
| Cadmium | Manganese | Lead |
| Copper | Organic | Matter Conductivity |
| Mercur | y Selenium | Chromium |
| Nickel | Zinc | Total Phosphorus |
If you would like to access to our catalog, click on the link “Reference Materials Catalogue”; or to purchase any of our products click on “Orders/Reference Materials”. You can also send your request directly to +34 966 1055 03 fax, or e-mail to comercial@ielab.es referencing the units and the product code.