| Reference | Designation/Description | Accredited assay |
Reference standards |
Product/ Material |
Comments (Administrator) |
|---|---|---|---|---|---|
| QUI.68.01 | Determination of nitrites by spectrophotometry of molecular absorption | EN 26 777:1993 | Natural saline water | --- | |
| QUI.68.04 | Determination of nitrites by spectrophotometry of molecular absorption | EN 26 777:1993 | Groundwater | --- | |
| QUI.68.05 | Determination of nitrites by spectrophotometry of molecular absorption | EN 26 777:1993 | Drinking water | --- | |
| QUI.70.01 | Determination of dissolved oxygen by volumetry | NP 733:1969 | Natural saline water | --- | |
| QUI.82.03 | Determination of chemical oxygen demand by photometry | SMEWW 5220 D, 22ªEd. | Groundwater | Decreto-Lei nº 183/2009 de 10 de Agosto | |
| QUI.86 | Assessment of the influence of organic materials in water intended for human consumption due to migracion - Determination of unsuspected organic substances by GC-MS | Internal Procedure QUI.86.IE.01 (version no. 3 of May 2020) equivalent to EN 15768:2015 | Waters resulting from migration tests | Portuguese “Decreto-Lei nº 306/2007 de 27 de agosto, alterado pelo Decreto-Lei nº 152/2017 de 7 de dezembro” "Annex A” from the “Project of Regulation which lays down the conditions of the Approval Scheme in Portugal for products in contact with water intended for human consumption” of the ERSAR (The Water and Waste Services Regulation Authority) | |
| QUI.92.03 | Determination of hexavalent chromium (VI) by spectrophotometry of molecular absorption | SMEWW 3500-Cr B, 22ªEd. | Groundwater | Decreto-Lei nº 183/2009 de 10 de Agosto | |
| QUI.95.01 | Determination of sugars by molecular absorption spectrophotometry | Phenol-sulfuric acid method | Water recovered from process | EN 1008:2002 | |
| QUI.95.02 | Determination of sugars by molecular absorption spectrophotometry | Phenol-sulfuric acid method | Groundwater / Surface water | EN 1008:2002 |