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ADXL206 Zero G Bias Repeatability

In the ADXL206 spec sheet on page 3, the "0 g bias repeatability" is listed as "+/- 10 mg."  Sorry if this question is obvious, but could someone clearly define what that means?  Is that the turn-on to turn-on repeatability of the sensor?  What I'm curious about is if I temperature calibrate / compensate an ADXL206 at one turn on for scale factor and bias errors, then cycle power on the ADXL206 off and attempt to use my previous temperature compensation, assuming that compensation was perfect will there be a possible additional error of +/- 10mg?  Thanks to anyone who can shed further light on this!