Spot check comparison

•Quick.

•Useful for "checking".

•Cost effective.

•Is not always accepted as a calibration.

•Environmental effects.

•Measurement uncertainty is rarely defined.

Single point calibration

•Covers the point where the calibration is carried out.

•Only covers the points where the calibration is carried out.

Multi point calibration

•Covers a complete range.

•It takes a longer time to carry out the calibration.

•Higher cost.