01/107111 DC : DRAFT SEP 2001

1 Scope
2 Normative references
3 Terms and definitions
4 Nominal designation
5 Specifications
   5.1 Dimensions
       5.1.1 Inlets, outlets, internal pipework and connections
       5.1.2 Access
       5.1.3 Sizing basis
   5.2 Construction
   5.3 Treatment efficiency
   5.4 Watertightness
   5.5 Structural requirements
       5.5.1 General
       5.5.2 Backfill load
       5.5.3 Hydrostatic loads
       5.5.4 Dynamic loads
       5.5.5 Crushing resistance/maximum load deformation
   5.6 Durability
6 Test methods
   6.1 Treatment efficiency testing procedure
   6.2 Calculation and test methods for structural behaviour
   6.3 Watertightness
7 Marking
8 Quality control
   8.1 Evaluation of conformity
       8.1.1 General
       8.1.2 Initial type tests
   8.2 Factory production control
       8.2.1 Raw materials and components
       8.2.2 Production process
       8.2.3 Finished product testing
       8.2.4 Stock control
9 Installation instructions
10 Operation and maintenance instructions
Annex A (normative) Watertightness test
      A.1 Water test
          A.1.1 Sample
          A.1.2 Procedure
          A.1.3 Expression of results
      A.2 Air permeability vacuum test
          A.2.1 Sample
          A.2.2 Procedure
          A.2.3 Expression of results
      A.3 Pneumatic pressure test
          A.3.1 Sample
          A.3.2 Procedure
          A.3.3 Expression of results
Annex B (normative) Treatment efficiency test procedure
      B.1 Testing location
      B.2 Plant selection and preliminary evaluation
          B.2.1 General
          B.2.2 Installation and commissioning
          B.2.3 Operation and maintenance procedures during testing
          B.2.4 Data to be monitored
      B.3 Test procedure
          B.3.1 Time for establishment
          B.3.2 Influent characteristics
          B.3.3 Daily flow pattern for testing
          B.3.4 Timetable for test procedure
          B.3.5 Plant loading
          B.3.6 Stress tests
          B.3.7 Sampling
      B.4 Sample analysis
      B.5 Test report
      B.6 Design changes
Annex C (normative) Calculation and test methods for structural
                    behaviour
      C.1 General
      C.2 Concrete plant
          C.2.1 Crushing test methods
          C.2.2 Test procedures
      C.3 Polyethylene plant
          C.3.1 Vertical load test
      C.4 Determination of mechanical characteristics of test
          samples used for calculation
          C.4.1 Concrete
          C.4.2 Glass reinforced plastic
      C.5 Vacuum test for Glass reinforced plastic or steel plant
      C.6 Pit test
          C.6.1 Sample
          C.6.2 Procedure
          C.6.3 Expression of results
Annex ZA (informative) Clauses of this European standard essential
                       requirements or other provisions of EU
                       directives

BS EN 12566-3