Application module: Property space | ISO/TS 10303-1080:2005(E) © ISO |
TECHNICAL SPECIFICATION | ISO/TS 10303-1080:2005(E) |
This part of ISO 10303 specifies the application module Property space. The following are within the scope of this part of ISO 10303:
a physical quantity space;
EXAMPLE 1 Mass is a physical quantity space.
EXAMPLE 2 Temperature is a physical quantity space.
a physical quantity range;
EXAMPLE 1 Mass between 9.9 kg and 10.1 kg is a physical quantity range.
EXAMPLE 2 Temperature between 400 degrees Celsius and 410 degrees Celsius is a physical quantity range.
the tensor order and symmetry of a physical quantity space;
EXAMPLE 1 Temperature is a scalar space. Stress is a symnmetric second order tensor space.
EXAMPLE 2 Elasticity is a symmetric fourth order tensor space.
a relationship with a physical quantity space.
EXAMPLE 1 'Mass when empty' is a relationship between physical objects that can be full or empty, such as vessels, and the physical quantity space 'mass'.
EXAMPLE 2 'Normal operating pressure' is a relationship between a physical object that contains a fluid under pressure and the physical quantity space 'pressure'.
The following are outside the scope of this part of ISO 10303:
a physical quantity instance.
NOTE 1 An physical quantity instance is a class that an individual physical object can be a member of. The class indicates the nature of an observable or measurable aspect of the individual physical object.
The mass of 10 Kg is a physical quantity instance. The widget with serial number 1234 in its state at 10:30 on 1998-11-05 is a member of this class.
A physical quantity space is a class that an physical quantity instance can be a member of. The class indicates the nature of the physical phenomenon.
Mass is a physical quantity space. The mass that is 10 Kg is a member of this physical quantity space.
NOTE 2 A physical quantity instance, is within the scope of the Independent_property_definition application module.
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