When in Melbourne recently, Louise took the opportunity of visiting EML Laboratories to update her nose calibration (last undertaken in, um, 1998…).  Odour sensitivity declines with age so Louise was somewhat relieved to discover that she is well within the 20-90 ppb detection threshold for n-butanol, and can be relied upon to represent an ‘ordinary, … Continue reading Louise has a calibrated nose and Gerda is a certified open water diver