NEMA TC 12 : 1991
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
CORRUGATED POLYVINYL CHLORIDE (PVC) COILABLE PLASTIC UTILITIES DUCT
08-05-1996
12-01-2013
Foreword
Purpose
Scope
1 General
References
Definition
Nominal size
2 Materials, dimensions, and workmanship
Materials
Dimensions
Workmanship
3 Performance tests
Test procedures
Test conditions
Duct stiffness
Impact test
Low temperature handling test
Axial pull test on factory-made joints
Extrusion quality (acetone immersion test)
4 Installation
Installation procedures
5 Marking
Marking
Tables
2.1 Dimensions
3.1 Minimum duct stiffness
3.2 Minimum impact strength
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