1 what is a "sample – YSI BOD Analyst Pro User Manual
Page 22

YSI BOD Analyst Pro
®
User Manual
22
SECTION 2 SAMPLES
2.1 WHAT IS A "SAMPLE?"
With YSI BOD Analyst Pro software you can organize your work by sample. A sample is
anything for which you want to know the BOD. Samples for BOD determination can be taken
from various points in your wastewater treatment system or environmental water. See examples
of samples below:
Raw
Clarifier Tank #2
Effluent
Combined sewer overflow #17
CBOD effluent
Clear River upstream of outfall
Samples can also come from industries or other large polluters:
Dairy Farm
Meat Processing Plant
Metal Plating Company
In BOD Analyst Pro software, samples also include some preparations that are done only in
support of the other measurements:
Seed control sample
GGA standard
Dilution water blanks
Distilled water blank
In BOD Analyst Pro software, a "Sample" is not just the name of what you want to measure, but
also all of the information about how you measure the BOD for that Sample. A Sample definition
includes the following information:
Sample Name – choose any appropriate name (< 30 characters/spaces)
Description – elaborate on the name with more specific information (< 50 characters/spaces)
Dilution Setup – how many dilutions and designated ml dilution for each
Seed Information – Name of seed sample and how many ml of seed used
Sample Category – define your sample as appropriate (Standard, Dilution Blank, Seed)
CBOD – check if you inhibit denitrification to determine the Carbonaceous BOD
Decimal Point – how many digits to right of decimal point to express Final BOD