# DEFINITIONS OF TERMS USED IN THIS ANNEX

## "Stability" (7) means the standard deviation (1 sigma) of the variation of a particular parameter from its calibrated value measured under stable temperature conditions. This can be expressed as a function of time.

**DEFINITIONS OF TERMS USED IN THIS ANNEX**

"Stability" (7) means the standard deviation (1 sigma) of the variation of a particular parameter from its calibrated value measured under stable temperature conditions. This can be expressed as a function of time.

N.B.: Category references are given in brackets after the defined term.