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:UK signs landmark economic partnership with NigeriaOne-stop-shop to help businesses save money and go greenGovernment takes action to back small businesses and…New laws to introduce digital labelling for…Expert regional innovation hubs given £75 million…