BS EN 858-2:2003

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Determination of type and size of separator systems
  4.1 General
  4.2 Components of separator systems, their combination
      and application
      4.2.1 General
      4.2.2 Bypass separators
      4.2.3 Classes of separators
  4.3 Sizing of separators
      4.3.1 General
      4.3.2 Factors
      4.3.3 Combined drainage of rainwater and wastewater
      4.3.4 Wastewater
      4.3.5 Rainwater flow rate
      4.3.6 Spillages
      4.3.7 Quantity of light liquid
      4.3.8 Special cases
  4.4 Sludge traps
5 Installation
  5.1 Limitations
  5.2 Retention of light liquid
  5.3 Automatic warning devices and electrical devices
  5.4 Drainage to and from separator systems
  5.5 Place of installation
  5.6 Protection against escape of light liquids
  5.7 Connection to the drainage system
6 Operation, inspection and maintenance
Annex A (informative) Density factor f[d] for
        particular light liquids and combination of
        components
Annex B (informative) Configuration and application of
        separator systems
Bibliography

Applies to separator systems used to separate hydrocarbons of mineral origin from wastewater.

This European Standard applies to separator systems used to separate hydrocarbons of mineral origin from wastewater. It does not apply to grease and oils of vegetable or animal origin nor to separation of emulsions or solutions.

This European Standard provides guidance on the selection of nominal sizes, as well as the installation operation and maintenance of light liquid separators manufactured in accordance with EN 858-1. It also gives advice on the suitability of cleansing agents if they are discharged to a separator.