
Rev E 1/14/15 pg. 29
Remove the samples from the oven and place them in a Desiccant Pouch.
Do NOT use conventional countertop or cabinet desiccators for this part of the analysis.
Allow the samples to cool to room temperature. This should take about 10 – 15 minutes.
Re-weigh each filter bag immediately after removing from the Desiccant Pouch.
Ash all filter bags in pre-weighed crucibles for 2 hours at 600°C ± 15°.
Cool the ashed crucibles in a conventional desiccator.
Weigh the ashed crucibles to calculate the loss of weight of organic matter (W
3
).
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