5-8
To exit without changing the cutoff limit, press (NO). The oven
returns to the Burn Parameter Menu.
To change the cutoff limit, press (YES). The oven displays:
Enter Cutoff Limit from
0.001% - 1.000% in
0.001% steps _
then press ENTER
Use the numeric and decimal keys to enter a cutoff limit from
0.001% to 1.000% in increments of 0.001%. Use the numeric
keys to set the burn time. After entering the cutoff limit, press
(ENTER). The oven returns to the Burn Parameter Menu.
Calculation Type
The oven provides two methods for calculating %Loss: the
bitumen-to-sample method and the bitumen-to-aggregate
method. Both methods measure the difference in the sample
weights before and after the burn. However, the bitumen-to-
sample method expresses the difference as a percentage of the
starting mass while the bitumen-to-aggregate method expresses
the difference as a percentage of the final (aggregate) mass.
The formulas for the two calculation types are as follows:
Bitumen-to-Sample Calculation Type:
% =
(
−
)
100
Bitumen-to-Aggregate Calculation Type:
% =
( − )
100
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