This part of ISO 5667 provides guidelines for the sampling of sediments in marine areas for analyses of their physical and chemical properties for monitoring purposes and environmental assessments: - sampling strategy; - sampling devices; - observations made and information during sampling; - handling sediment samples; - packaging and storage of sediment samples. This part of ISO 5667 does not provide guidelines for data treatment and analysis which are available from other references (see Bibliography). This part of ISO 5667 is not intended to give guidance for sampling of frechwater sediments.