Notation	Name	Description	Status
class1	Class 1	Exposure of instrument allows reference level measurements	stable
class2	Class 2	Exposure of instrument has small or infrequence influence on ...	stable
class3	Class 3	Exposure of instrument leads to increased uncertainty or occa...	stable
class4	Class 4	Exposure of instrument leads to high uncertainty or regular i...	stable
class5	Class 5	Exposure of instrument leads to invalid measurements	stable
inapplicable	inapplicable	None of the codes in the table are applicable in the context ...	stable
unknown	unknown	Classification unknown	stable