This part of ISO 5667 provides guidance on the procedures for preservation and handling of sewage and waterworks sludges, suspended matter, and saltwater and freshwater sediments for subsequent analysis.
ISO 5667-15:1999 history
2009ISO 5667-15:2009 Water quality - Sampling - Part 15: Guidance on the preservation and handling of sludge and sediment samples
1999ISO 5667-15:1999 Water quality - Sampling - Part 15: Guidance on preservation and handling of sludge and sediment samples