This International Standard provides guidelines on the quantitative collection and processing of subtidal soft-bottom macrofaunal samples in marine waters.This International Standard encompasses:. development of the sampling programme;. requirements for sampling equipment;. sampling and sample treatment in the field;. sorting and species identification;. storage of collected and processed material.This International Standard does not specifically address the following, although some elements may be applicable:. bioassay sub-sampling;. deep water (> 750 m) or offshore sampling;. in situ faunal studies, e.g. recolonisation assays;. nonbenthic organisms caught