Ankom TDF, Руководство оператора

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Operator’s Manual
Rev A 4/30/12 pg. 47
Ash Determination
For best results use Ceramic crucibles with fitted covers. Fold the filter bags so that
they easily fit into the crucibles.
IDF
To determine the ash content within the IDF residue, follow the procedure below.
1. Starting at the bottom of the filter part of the bag, fold the bag upward, leaving at least 5 mm at the top of the clear
polypropylene that is not folded. Then fold the bag in thirds from side to side.
2. With your Heat Sealer set to “6,” press the Heat Sealer arm down for 3 to 4 seconds to seal the clear
polypropylene part of the bag just above the white filter material.
3. Label the folded, sealed filter bag and place it in a labeled ashing crucible.
4. Repeat steps 1 – 3 for all IDF bags to be ashed.
5. Place covered ashing crucibles with filter bags in a furnace at 600°C for 3 hours.
6. After the 3 hour furnace time, place the ashed crucibles in desiccator(s) and allow them to cool.
7. Remove cooled crucibles from the desiccator(s) and record their weights.
5 mm of clear
polypropylene