Optional_Optional_Describes the time last calibration has been performed
Optional_unspecified | offset | gain | two-point
OptionalextensionAdditional content defined by implementations
OptionalidUnique id for inter-element referencing
OptionalmodifierExtensions that cannot be ignored even if unrecognized
Optionalstatenot-calibrated | calibration-required | calibrated | unspecified
OptionaltimeDescribes the time last calibration has been performed
Optionaltypeunspecified | offset | gain | two-point
not-calibrated | calibration-required | calibrated | unspecified