River rock ballast 0/45 mm – For roads and other constructions
| Tested feature, marking | Test results | Allowed range of result values |
| 1 | 2 | 3 |
| Category for granulometric composition | GA90 | BDS EN 13242:2013 |
| Index of flat aggregates, FI | 5 | ≤10 for category FI10BDS EN 13242:2013 |
| Composition of fine fraction, f | 1.3% of the mass | ≤3 for category f3BDS EN 13242:2013 |
| Form factor, SI | 6 | ≤15 for category SI15BDS EN 13242:2013 |
| Specific particle density:- Particle density in dry condition- Particle density in saturated surface dry condition – Apparent particle density | 2.61 mg/m32.63 mg/m32.65 mg/m3 | BDS EN 13242:2013No requirement No requirement No requirement |
| Water absorption, WA | 0.7% of the mass | ≤1 for category WA241BDS EN 13242:2013 |
| Resistance to fragmentation – the Los Angeles test, LA | 37 | ≤40 for category LA40BDS EN 13242:2013 |
| Resistance to wear /micro–Deval/, MDE | 8 | ≤10 for category MDE10BDS EN 13242:2013 |
| Loss of mass in the magnesium sulfate test, MS | 3.8 | ≤18 for category MS18BDS EN 13242:2013 |
| Humus content | Does not contain | BDS EN 13242:2013 |
All products, offered by DDF JSC Ruse, meet the requirements of BS EN 12620:2002 and have a certificate for factory production control, issued by the Organization for technical conformity, according to the Ordinance on essential requirements and conformity assessment of construction products, Directive 89/ 106 EEC.
The company has a laboratory which controls the quality of products.