Hach BODTrak II - Page 25

BODTrak™ II procedures
25
1. Heat or cool the
sample to 19 to 21 ºC
(66 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 6 on
page 24). Measure the
sample into a graduated
cylinder.
4. Add the contents of 2
nutrient buffer pillows to
the graduated cylinder.
5. If seeding the sample,
use a tensette pipet to add
the correct quantity of
seed to the graduated
cylinder (Table 6 on page
24).
6. If necessary, add more
nutrient or buffer. Do not
add more than a total
volume of 50 mL (seed,
nutrient, buffer).