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Explanation of used markings of the aggressive environment.
| Mark | Description | pH | Note |
|---|---|---|---|
| D.W. | Demineralized water | 6.81 | |
| A.R. | Acid rain | 4.25 | Prepared from nitric acid and sulfuré |
| XA1 | Degree of environmental influence according to EN 206-1 | 1.99 | Concentration of sulfate ions 600 mg/L |
| XA2 | Degree of environmental influence according to EN 206-1 | 1.55 | Concentration of sulfate ions 3000 mg/L |
| XA3 | Degree of environmental influence according to EN 206-1 | 1.27 | Concentration of sulfate ions 6000 mg/L |
