Hach BODTrak, Instrument Manual, Page: 7 / 63

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4.3.1 Determining BOD of Seed ................................... 32
4.3.2 Determining BOD of Sample............................... 33
4.3.3 Variations in Initial Bacterial Populations ........... 33
4.4 Sample Temperature..................................................... 34
4.4.1 Other BOD Test Temperatures ............................ 34
4.5 Industrial Wastes .......................................................... 34
4.5.1 Chlorine................................................................ 34
4.5.2 Other Toxic Materials .......................................... 35
4.5.3 Seed Acclimatization ........................................... 35
4.6 pH Effect ...................................................................... 36
4.7 Supersaturation ............................................................. 36
SECTION 5 MAINTENANCE ............................................... 37
5.1 Cleaning the BODTrak Instrument .............................. 37
5.1.1 Sample Bottles ..................................................... 37
5.1.2 Stir Bars and Seal Cups........................................ 37
SECTION 6 TROUBLESHOOTING..................................... 39
6.1 Adjusting the Calibration ............................................. 39
GENERAL INFORMATION................................................. 41
PARTS & ACCESSORIES ....................................................... 43
HOW TO ORDER .................................................................... 45
REPAIR SERVICE ................................................................... 47
WARRANTY ............................................................................ 48
INDEX ...................................................................................... 49
TABLE OF CONTENTS,
continued
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