Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
3.1 General
3.2 Deposits
3.3 Cleaning methods
4 Management of cleaning operations
4.1 General
4.2 Cleaning aims
4.3 Description of the sewer system
4.3.1 General
4.3.2 Review of information
4.3.3 Typology of drains and sewers
4.4 Development of the cleaning plan
4.5 Specification of objectives
4.6 Evaluation of the condition of the sewer
before cleaning
4.7 Information to be provided
4.8 Selection of cleaning methods
4.9 Recycling and disposal of deposits
5 Control of sewer cleaning operations
5.1 Specification
5.2 Description of the required results
5.3 Reporting requirements
5.4 Performance indicators
5.5 Methods to be used to measure conformity
5.6 Non-conformities
5.7 Review of the cleaning plan
6 Working practices
6.1 General
6.2 Training
6.3 Health and safety
6.4 Methods
Annex A (informative) Example of cleaning report
form
Annex B (informative) Cleaning methods
B.1 General
B.2 Jetting
B.3 Jetting with suction
B.4 Winching
B.5 Rodding
B.6 Remote controlled equipment
B.7 Flushing
B.8 Cleaning balls/scouring plates
B.9 Manual or mechanical excavation
Annex C (informative) Examples of performance indicators
C.1 Indicators for the assessment of a cleaning
plan
C.2 Indictors for the assessment of cleaning
work
Bibliography