Table 1: Partial stability criteria. The values range from 1 (best) through 3 (worse), with a rejection value of 10.
Statistics Threshold Partial index
Standard deviation (Stdv)
  Stdv $\leq$ 150 $\mu $as 1
  150 $\mu $as $\leq$ Stdv $\leq$ 300 $\mu $as 2
  300 $\mu $as $\leq$ Stdv $\leq$ 450 $\mu $as 3
  Stdv $\geq$ 450 $\mu $as 10
Allan Standard deviation (AlSd)
  AlSd $\leq$ 100 $\mu $as 1
  100 $\mu $as $\leq$ AlSd $\leq$ 200 $\mu $as 2
  200 $\mu $as $\leq$ AlSd $\leq$ 300 $\mu $as 3
  AlSd $\geq$ 300 $\mu $as 10
|Drift| (Vel)
  Vel $\leq$ 10 $\mu $as/year 1
  Vel $\geq$ 50 $\mu $as/year 10
|Normalized drift| (Nvl)
  Nvl $\leq$ 1 1
  1 $\leq$ Nvl $\leq$ 3 2
  Nvl $\geq$ 3 3


Source LaTeX | All tables | In the text