Attached is a list of containers and hold times that are used by Bureau Veritas Calgary and Edmonton labs.
Current as of April 17 2023
Routine Water package:
pH: 15 mins
NO2/NO3: 3 days
Alkalinity: 14 days
Chloride: 28 days
Sulphate: 28 days
Conductivity: 28 days
Diss Ca, Mg, Na, K, Mn, Fe: 180 days