C901-88: AWWA Standard for Polyethylene (PE) Pressure Pipe and Tubing, 1/2 In. Through 3 In., for Water Service (PDF)
SKU: STC_0024094-PDF
This standard covers polyethylene (PE) pressure pipe and tubing made from material having standard PE code designations PE 2406, PE 3406, and PE 3408 and primarily intended for use in the transportation of water and other liquids. Polyethylene pipe ranges in nominal size from 1/2 inch through 3 inch and conforms to the outside-diameter dimensions of iron pipe sizes (OD based, IPS pipe) or to the inside-diameter dimensions of iron pipe sizes (ID based, IPS pipe). Polyethylene tubing ranges in size from 1/2 inch through 2 inch and conforms to the outside-diameter dimensions of copper tubing.
Description
Included in this standard are criteria for classifying PE plastic pipe materials, a system of nomenclature for PE plastic pipe, and requirements and test methods for materials, pipe, and tubing. Methods of marking are also given. Design, installation, and application considerations are discussed in the appendix to this standard. The current standard is a revision of AWWA C901-78. Major revisions in this edition of the standard include the following: (1) The use of material designations PE 1404, PE 2305, and PE 3306 were eliminated, and designations PE 2406 and PE 3408 were added. (2) The use of all tubing pressure classes below 160 psi, except after special study and agreement between purchaser and manufacturer, was eliminated. (3) A statement on permeation of plastics and other materials was added. (4) The sustained-pressure test was replaced by the elevated-temperature sustained-pressure test. (5) The environmental stress-cracking resistance test was replaced by thermal-stability and bend-back tests. (6) Heat-fused fitting assemblies were eliminated from the standard. (7) The frequency of short-time rupture strength tests was reduced from once per eight-hour shift to once per day. (8) Installation recommendations were revised and made more stringent.