Bod Measurement; Procedure; Start Measurement - wtw inoLab Level 3 Operating Manual

BOD
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9.2

BOD measurement

9.2.1

Procedure

BOD measurements run according to the following
sequence:
l Start measurement at the beginning of the incubation
period
– Measurement of the blank value solutions
– Measurement of the sample dilutions
l End measurement after expiry of the incubation period
– Measurement of the blank value solutions
– Measurement of the sample dilutions
l Editing and output of the measurement results
Names for samples, sample dilutions and blank value
solutions are entered via the keys on the terminal, an
external keyboard or via a barcode reader (see
section 9.1.2).
9.2.2

Start measurement

Have the following data ready before the measurement:
l Number of blank value solutions (max. 5)
l Number of sample dilutions (max. 18)
l Amount of sample (in ml) and total volume (in ml) of each
sample dilution
l
Incubation period (5 to 30 days)
l
Names for blank value solutions, samples, sample
dilutions and routines (each with a max. of 12 characters)
Note
The expiry of a start measurement with routine corresponds
to the start measurement without routine. Entry fields are
filled out with the default values of the routine.