ISO 10303-214:2010(E)
A Value_range is a pair of numerical values representing the range in which the value shall lie.
A Value_range is a type of Value_with_unit.
The data associated with a Value_range are the following:
The lower_limit specifies the minimum acceptable value that is constrained by the Value_range.
The upper_limit specifies the maximum acceptable value that is constrained by the Value_range.
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