GETTING MY COD TESTING TO WORK

ANAB laboratory accreditation may also help go your laboratory towards international recognition, regular functions, and also a aggressive edge.C O D = 8000 ( b − s ) n T h e   t i c h   m a u   t h u displaystyle COD= frac 8000(b-s)n The tich mau thu The focus of oxygen in h2o is often claimed possibly since the focus in mg/L or as the % satu