Determination of results, Typical curves, Special considerations – Hach-Lange BODTRACK II User Manual User Manual
Page 4: Maintenance, Troubleshooting, Replacement parts and accessories
Hach Standard Method procedure ...................................................................................................................................................14
Completion steps for all procedures ................................................................................................................................................15
Sample dilution ................................................................................................................................................................................18
Sample seeding ...............................................................................................................................................................................18
Sample temperature ........................................................................................................................................................................18
Toxic materials.................................................................................................................................................................................18
Chlorine ............................................................................................................................................................................................19
pH effect...........................................................................................................................................................................................19
Supersaturation ................................................................................................................................................................................19
Incorrect BOD curves.......................................................................................................................................................................20
High oxygen demand .......................................................................................................................................................................20
Nitrification .......................................................................................................................................................................................21
Excessive time lag ...........................................................................................................................................................................21
Sample temperature ........................................................................................................................................................................21
Bottle leak ........................................................................................................................................................................................21
Replacement parts and accessories
Replacement parts ...........................................................................................................................................................................21
Required reagents ...........................................................................................................................................................................22
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