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

Page 22

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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

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