The Blank Bag Correction allows for a weight adjustment based on actions that take place during solubilization. The resulting factor adjusts your sample bag weight in an up or downward direction. To determine the blank bag correction, include at least one empty, sealed and weighed filter bag (blank bag) with your run. After the samples and blank bag have been through the solubilization process and dried as required, divide the final weight of the blank bag by the initial weight. If the samples have been properly prepared, this will result in a factor usually in the 0.992-0.998 range with the F57 filter bag. If the blank bag value is greater than 1.0, refer to FAQ "Why is my blank bag heavier after the run than before the run?"