ASTM D2846 is a standard specification developed by ASTM International (formerly known as the American Society for Testing and Materials) that outlines the requirements for chlorinated poly(vinyl chloride) (CPVC) plastic hot- and cold-water distribution systems. This standard provides specifications for CPVC pipes and fittings used in residential and commercial plumbing applications.
Here are key points covered by ASTM D2846:
Scope:
ASTM D2846 specifies the requirements for CPVC plastic hot- and cold-water distribution systems for use in residential and commercial buildings.
Materials:
The standard outlines the materials used in the manufacture of CPVC pipes and fittings, including the CPVC resin and any necessary additives. These materials must meet specific chemical and physical requirements to ensure the performance and durability of the plumbing system.
Dimensions and Tolerances:
ASTM D2846 establishes the dimensions and tolerances for CPVC pipes and fittings. This includes requirements for outside diameter, wall thickness, length, and other dimensional characteristics to ensure compatibility and ease of installation.
Workmanship, Finish, and Appearance:
The standard provides guidelines for the workmanship, finish, and appearance of CPVC pipes and fittings. This includes requirements for the visual inspection of the products to ensure they meet quality standards.
Performance Requirements:
ASTM D2846 outlines various performance requirements that CPVC pipes and fittings must meet. This includes specifications related to pressure resistance, temperature resistance, and other mechanical properties to ensure the products can withstand the conditions encountered in hot- and cold-water distribution systems.
Testing Methods:
The standard defines testing methods to evaluate compliance with the specified requirements. These methods cover aspects such as pressure testing, impact resistance, and thermal cycling to assess the performance of CPVC pipes and fittings.
Marking and Identification:
ASTM D2846 specifies the requirements for marking and identifying CPVC pipes and fittings. This includes information such as the manufacturer’s name or trademark, material designation, size, and other relevant details.
Installation Recommendations:
While ASTM D2846 primarily focuses on the material specifications, it may reference other ASTM standards or industry practices for the installation of CPVC hot- and cold-water distribution systems.
Compliance with ASTM D2846 ensures that CPVC pipes and fittings meet established standards for quality and performance, promoting consistency and reliability in plumbing applications. Manufacturers, regulatory bodies, and those involved in the plumbing industry use this standard to guide the production, testing, and installation of CPVC systems.