AOAC Official Method 942.05 Ash of Animal Feed

First Action 1942

Final Action

Weigh 2 g test portion into porcelain crucible and place in temperature controlled furnace preheated to 600°C. Hold at this temperature 2 h. Transfer crucible directly to desiccator, cool, and weigh immediately, reporting percent ash to first decimal place.

% (w/w) ash =weight of test portion, g - weight loss on ashing, g

                                           weight of test portion, g                            *100