【国外标准】 Standard Specification for Folded Poly(Vinyl Chloride) (PVC) Pipe for Existing Sewer and Conduit Rehabilitation

This specification covers the material, dimensional, and requirements and corresponding test methods for folded poly(vinyl chloride) (PVC) pipes suitable for the rehabilitation of existing nonpressure sewers and conduits, wherein the folded PVC pipe is inserted into, and then expanded to conform to the wall of, the original conduit forming a new pipe-within-a-pipe structure. This specification does not include pipes manufactured from reprocessed, recycled, or reclaimed PVC. Appropriately sampled specimens shall be tested, and shall thereby conform accordingly to specified requirements for flattening resistance, impact strength, stiffness, extrusion quality by acetone immersion and heat reversion, flexural modulus of elasticity, and rounded pipe diameter and wall thickness.1.1 This specification covers requirements and test methods for materials, dimensions, workmanship, flattening resistance, impact resistance, pipe stiffness, extrusion quality, and a form of marking for folded poly(vinyl chloride) (PVC) pipe for existing sewer and conduit rehabilitation.1.2 Folded PVC pipe produced to this specification is for use in non-pressure sewer and conduit rehabilitation where the folded PVC pipe is inserted into and then expanded to conform to the wall of the original conduit forming a new pipe-within-a-pipe.NOTE 1: For installation procedures and engineering design considerations refer to Practice F1947.1.3 This specification includes folded PVC pipe made only from materials specified in Section 6. This specification does not include folded pipe manufactured from reprocessed, recycled, or reclaimed PVC.1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.5 The following precautionary statement pertains to the test method portion only, Section 11, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.