YSI BODAnalyst - Manual (Page 10)

SECTION 2 SAMPLES
2.1 WHAT IS A "SAMPLE?"
With YSI’s BOD Analyst software you can organize your work by sample. A sample is anything
for which you want to know the BOD. Samples for BOD can be taken from various points in
your wastewater treatment system or environmental water:
Raw north plant effluent
Clarifier Tank #2 combined sewer overflow #17
CBOD effluent Green River upstream of outfall
Samples can also come from industries or other large polluters:
Dairy farm refinery
ABC metal plating army base
In the BOD Analyst software, Samples also include some things that are done only in support of
the other measurements:
Seed control sample dilution water blanks
GGA standard distilled water blank
In the BOD Analyst software, a "Sample" is not just the name of the stuff for which you want to
know the BOD, but also all the information about how you measure the BOD for that Sample.
Specifically, a Sample definition includes the following information: a name; a description; the
dilutions that you usually run for that Sample; whether or not the Sample is seeded, and if so, how
and whether or not the Sample is a CBOD. You define Samples in the BOD Analyst software on
the Sample Form. The Sample Form is accessed from the menu by selecting Setup, Samples. A
Sample for "north plant effluent" would look something like this: