ISO 5667-3:2003 gives general guidelines on the precautions to be taken to preserve and transport all water samples including those for biological analyses but not those intended for microbiological analysis.
These guidelines are particularly appropriate when spot or composite samples cannot be analysed on-site and have to be transported to a laboratory for analysis.
EN ISO 5667-3:1995
EN ISO 5667-3:2003
99.60 Withdrawal effective
Nov 15, 2012