UNE-EN 12255-12:2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Design requirements and automation concept
  5.1 Input data for the design of the automation system
      5.1.1 General
      5.1.2 Instrumentation and automation systems
      5.1.3 Plant operating conditions
  5.2 Automation concept
6 Design and implementation
  6.1 Tendering
      6.1.1 General
      6.1.2 Functional tendering
      6.1.3 Sectional tendering
  6.2 Basic design
  6.3 Detail design
  6.4 Implementation, test and take over
7 Specification of automation systems
  7.1 General
  7.2 Requirements
Bibliography

Describes requirements for control and automation systems on wastewater treatment plants for more than 50 PT. It defines the necessary information and data which are needed for the design and implementation of such systems.