Maintain Blanks

The Maintain Blanks form displays all blanks data for the Screening Group. Unlike similar forms in the AQS application the top block in the form that is used for selection does not control the display area below once the select has been done. All blanks data for all monitors selected is displayed.

Blank data is the record of the pre-use value for filters or other similar components used in monitors. The "tare" value is another term that is used to describe this value.

Protocol information describes the method, unit and duration used to determine the blank value. This does not have to be the same as the protocol used by the monitor to report pollutant values.