Assertion: pipe | /r/HasProperty | measured by inside diameter
Facets:
value: generally
type: MANNER
Source sentences:
text: Pipes are generally measured by the inside diameter (ID), often called the “nominal” diameter, and a “schedule”, which refers to the wall thickness whereas for tubes, the outer diameter (OD) and wall thickness, which are exact measures in inches or millimeters roughly corresponds to the tube size.