untitled BRITISH STANDARD BS EN 15196 2006 BS 6068 5 43 2006 Water quality — Guidance on sampling and processing of the pupal exuviae of Chironomidae (Order Diptera) for ecological assessment The Euro[.]
BRITISH STANDARD Water quality — Guidance on sampling and processing of the pupal exuviae of Chironomidae (Order Diptera) for ecological assessment The European Standard EN 15196:2006 has the status of a British Standard ICS 13.060.45 12&23