Hach-Lange BODTRAK II: Respirometric Biochemical Oxygen Demand (BOD) - Manual (Page 20)

BODTrak™ II procedures
20
5.2 Simplified procedure
Required apparatus:
BODTrak II bottle
Thermometer
Blender (optional)
Graduated cylinder
Required reagents:
1 nutrient buffer pillow
Table 4 Simplified sample volumes
BOD range mg/L Sample volume mL
0 to 35 420
0 to 70 355
0 to 350 160
0 to 700 95
1. Heat or cool the
sample to 19 to 21 ºC
(66 F to 70 ºF).
2. Homogenize the
sample in a blender if it
contains large settleable
or floatable solids.
3. Choose the correct
sample size for the
sample range ( Table 4 ).
Measure the sample into a
graduated cylinder.