Posted on February 6, 2019February 7, 2019 by Pulse AssentISO/TS 21231:2019 Water quality. Characterization of analytical methods. Guidelines for the selection of a representative matrix Link: ISO/TS 21231:2019 Water quality. Characterization of analytical methods. Guidelines for the selection of a representative matrix Source: BSI Standards Related Posts:More high-quality degree alternatives to boost adult…COP 26: UK pledges over £55m to partner with…Boost for British shoppers and exporters from UK-New…UK signs landmark economic partnership with NigeriaBusinesses to be given UK product marking flexibility