TurbiTechw² LR Instruction Manual
Solutions made by diluting the 4000 FTU standard should also be stored in suitably labelled amber
glass bottles and kept in a cool dark place. Solutions above 400 FTU have a shelf life of one month
after which they should be discarded. Solutions below 400 FTU should be prepared from the 4000
FTU standard daily.
Solutions can be used outside of the storage life specified, but any results taken must acknowledge
this and be accepted as less accurate. When using solutions, watch for flocculation (the particles in the
solution will appear to link together), if this occurs discard the solution and prepare a fresh standard.
Page 30 of 34
225769IM - Issue - 05 Issue Date 30/04/2019
