International Organization for Standardization

Water Quality - Sampling - Part 10: Guidance on Sampling of Waste Waters First Edition
 N 5667-10

Annotation

This part of ISO 5667 contains details on the sampling of domestic and industrial waste water, i.e. the design of sampling programmes and techniques for the collection of samples. It covers waste water in all its forms, i.e. industrial waste water, and crude and treated domestic waste water.

Sampling of accidental spillages is not included, although the methods described in certain cases may also be applicable to spillages.

Objectives

A sampling programme may be based on many different objectives. Some of the more common objective are:

— to determine the concentration of pollutants in a waste-water stream;

— to determine the load of pollutants carried by a waste-water stream;

— to provide data for the operation of a waste-water treatment plant;

— to test whether given discharge concentration limits are kept;

— to test whether given discharge load limits are kept;

— to provide data for the levy upon discharge of waste water.

When designing a waste-water sampling programme. it is essential for the objective of the study to be kept in mind, so that the information gained from the study corresponds closely to the information required.

Generally, the objectives of sampling are quality control or quality characterization, as described in 1 .l .l and 1 .1.2.