Ankom 2000 - Page 17

Operator’s Manual
Rev 05/12/21 pg. 17
17.
Remove the bags from the oven and place them in a Desiccant Pouch.
Do NOT use conventional countertop or cabinet desiccators for this analysis.
18.
Allow the bags to cool to room temperature. This should take about 10 – 15 minutes.
19.
Remove one filter bag from the Desiccant Pouch. Press the pouch to remove ambient air and zip it tight.
20.
Re-weigh the filter bag (W
3
) immediately.
21.
Repeat steps 19 and 20 for each filter bag in the Desiccant Pouch.
22.
Calculate ADF using the following formula.
% ADF (as-received basis)
=
100 x (W
3
– (W
1
x C
1
))
W
2
Where:
W
1
=
Bag tare weight
W
2
=
Sample weight
W
3
=
Dried weight of filter bag with fiber after extraction process
C
1
=
Blank bag correction (running average of final oven-dried weight
divided by original blank bag weight)
If you are following the acid detergent procedure with an acid detergent
lignin, you can find the lignin procedure on our website at www.ankom.com.