WARNING — Persons using this International Standard should be familiar with normal laboratory
practice. This standard does not purport to address all of the safety problems, if any, associated with
its use. It is the responsibility of the user to establish appropriate safety and health practices and to
ensure compliance with any national regulatory conditions.
This part of ISO 5667 gives guidance on the sampling of sludges from wastewater treatment works, water
treatment works and industrial processes. It is applicable to all types of sludge arising from these works and also
to sludges of similar characteristics, e.g. septic tank sludges. Guidance is also given on the design of sampling
programmes and techniques for the collection of samples.