times are calculated from the time the sample is taken.
The following tests have short holding times:Eg.Para meter
,Hold Time BOD 48 hours,Chlorine, Residual ASAP,Chromium,
Hexavalent 24 hoursColiform, Total and Fecal in waste water
6 hours,Coliform, Total and Fecal in Drinking water 30 hours,Color
48 hours,MBAS (Surfactants) 48 hours.
Nitrate 48 hours,Nitrite 48 hours,Odor 24 hours,Phosphate-ortho
48 hours Solids, Settle able 48 hours,Turbidity 48 hours