NEN EN 295-3 : 2012

1. General
1.1 Object and field of application
1.2 References
1.3 Symbols
2. Test for squareness of ends
3. Straightness test
4. Crushing strength test
4.1 General
4.1.1 Preconditioning
4.1.2 Testing machine
4.1.3 Loading
4.2 Bearers and bearing strips/facings
4.2.1 Bearers
4.2.2 Bearing strips/facings
4.3 Support systems
4.3.1 Flexible hose system
4.3.2 Common hydraulic manifold system
4.3.3 Rigid systems
4.4 Test load application
4.4.1 Plain ended pipes
4.4.2 Socketted pipes
4.4.3 Loading
4.5 Results and reporting
4.5.1 Acceptance (proof) tests
4.5.2 Ultimate tests
4.5.3 Disputes
4.5.4 Test records
5. Bending tensile test
5.1 Proconditioning
5.2 Test procedure
6. Bending moment resistance test
6.1 General
6.1.1 Preconditioning
6.1.2 Testing machine
6.1.3 Loading
6.2 Four point loading test
6.2.1 Test procedure
6.2.2 Testing by attributes
6.2.3 Testing by variables
6.3 Three point loading test
6.3.1 Test procedure
6.3.2 Testing by attributes
6.3.3 Testing by variables
7. Bond strength of adhesive
8. Test for fatigue strength
8.1 Preconditioning
8.2 Test using a pipe or pipe section
8.3 Test using sawn specimens
9. Test for watertightness of pipes
10. Chemical resistance test for pipes and fittings
11. Determination of hydraulic roughness
12. Abrasion resistance test
13. Impermeability test for fittings
13.1 Water test
13.2 Air pressure test
14. Ozone resistance test
15. Tests for polyurethane
15.1 Test pieces
15.2 Tensile strength and elongation at Break
15.3 Hardness
15.4 Drop in restoring stress (relaxation)
15.4.1 General
15.4.2 Test pieces
15.4.3 Test equipment
15.4.4 Test procedure
15.5 Compression set
15.6 Resistance to ageing
15.7 Behaviour at low temperatures
16. Tests for polypropylene sleeve couplings made by
       coupling manufacturers who hold a certification
       mark licence to EN 295
16.1 Melt flow index
16.2 Tensile strength and elongation at break
16.3 Elevated temperature test
17. Tests for polypropylene sleeve couplings purchased
       from an outside supplier
18. Mechanical test methods for joint assemblies
18.1 General
18.2 Deflection test
18.3 Loading arrangements for shear and creep
       resistance test
18.4 Short term shear resistance test
18.5 Long term shear resistance test
18.6 Long term creep resistance test
19. Invert conformity test
19.1 Test methods
19.2 Pipes and fittings with top marking
19.3 Pipes and fittings randomly jointed
19.3.1 Sampling and dimensions
19.3.2 Derived values
19.3.3 Calculations
19.3.4 Evaluation
20. Chemical resistance test for joint assemblies
20.1 Test solutions
20.2 Procedure
21. Thermal stability
21.1 Thermal cycling stability
21.2 Long-term thermal stability
22. Resistance index CR

Defines requirements for testing of products manufactured from vitrified clay and other materials specified in the following standards: - pipes, fittings and joints according to EN 295-1; - adaptors, connectors and flexible couplings according to EN 295-4; - perforated pipes and fittings according to EN 295-5; - components of manholes and inspection chambers according to EN 295-6; - pipes and joints for pipe jacking according to EN 295-7.