Notation	Name	Description	Status
automaticReading	Instrumental automatic reading	Automatically produced measurement result	stable
humanObservation	Human observation	Human, non-instrumented observation	stable
inapplicable	inapplicable	None of the codes in the table are applicable in the context ...	stable
manualReading	Instrumental manual reading	Manual reading of instrument, both analog and digital outputs	stable
unknown	unknown	Procedure used to obtain result is unknown	stable