NEN EN 1917 : 2002 C3 2008

Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
  3.1 Terms and definitions
  3.2 Symbols
4 General requirements
  4.1 Materials
  4.2 Concrete
  4.3 Units
5 Special requirements
  5.1 Steel fibre concrete units
  5.2 Reinforced concrete units
6 Test methods for finished products
  6.1 General
  6.2 Joint profiles
  6.3 Reinforcement
  6.4 Crushing strength of chamber and shaft units
  6.5 Vertical strength of reducing units and
      capping units
  6.6 Watertightness
  6.7 Water absorption
  6.8 Concrete strength in base units, capping unit walls,
      adjusting units and certain tapers
  6.9 Installed steps
7 Conformity evaluation
  7.1 General
  7.2 Product evaluation procedures
8 Marking
Annex A (normative) Test method for crushing strength of
        chamber and shaft units
        A.1 Principle
        A.2 Apparatus
        A.3 Preparation
        A.4 Procedure
        A.5 Expression of results
Annex B (normative) Test methods for vertical strength
        of reducing units and capping units
        B.1 Principle
        B.2 Apparatus
        B.3 Preparation
        B.4 Procedure
        B.5 Expression of results
Annex C (normative) Test method for watertightness
        C.1 Principle
        C.2 Apparatus
        C.3 Preparation
        C.4 Procedure (vertical unit hydrostatic test -
             routine and initial type tests)
        C.5 Procedure (joint assembly test)
        C.6 Alternative procedure for assembled structures
        C.7 Procedure (joint between a vertical unit
             and a connecting pipe or adaptor)
        C.8 Expression of results
Annex D (normative) Test method for water absorption
        D.1 Principle
        D.2 Sample
        D.3 Apparatus
        D.4 Procedure
        D.5 Expression of results
Annex E (normative) Test methods for installed steps
        E.1 Principle
        E.2 Apparatus
        E.3 Preparation
        E.4 Procedure
        E.5 Expression of results
Annex F (normative) Manufacturer's quality assurance system
        F.1 Organization
        F.2 Factory production control system
        F.3 Inspection and testing
        F.4 Action required in the case of defectives
        F.5 Handling, storage, packing and delivery
             of units
        F.6 Training and personnel
        F.7 Materials control
        F.8 Equipment control
        F.9 Process control
        F.10 Control of laboratory equipment
Annex G (normative) Sampling procedures for inspection
        of finished products
Annex H (normative) Sampling procedures for continuous
        inspection of crushing strength, vertical
        strength and watertightness (vertical unit
        hydrostatic)
        H.1 Inspection rates and interpretation of results
        H.2 Operating of switching roles
        H.3 Tightened, normal and reduced inspection
        H.4 Acceptability determination
Annex I (normative) Tasks for a product certification body
        I.1 Initial inspection of factory and factory
             production control
        I.2 Evaluation and approval of initial type
             testing of units
        I.3 Periodic surveillance, evaluation and
             approval of factory production control
        I.4 Audit testing of samples taken at the
             factory
        I.5 Quality system
Annex J (normative) Procedure for unreinforced concrete
        chamber and shaft units where routine (continuous)
        inspection of crushing strength is primarily
        to minimum crushing load
Annex ZA (informative) Clauses of this European Standard
         addressing essential requirements or other
         provisions of EU Directives
         ZA.1 Scope and relevant characteristics
         ZA.2 Procedure(s) for the attestation of
              conformity of concrete manholes and
              inspection chambers
         ZA.3 CE marking
Bibliography

Specifies performance requirements and describes test methods for precast concrete units for inspection chambers designed to be used for inverts not exceeding 2 meters deep and manholes, of circular, rectangular (with or without chamfered or rounded corners) or elliptical internal shape.