What chapter of the plumbing code addresses materials used for pipes?

The correct chapter that addresses materials used for pipes is the one focused on water supply. This chapter covers the specifications, standards, and suitable materials for pipes intended for transporting potable water. It encompasses the various types of piping materials that can be utilized, such as copper, PVC, PEX, and others, ensuring that they meet health and safety guidelines for water quality and distribution.

The water supply chapter is crucial because it not only specifies acceptable materials but also dictates installation practices to minimize problems like leaks or contamination. By complying with these regulations, plumbers can ensure a safe and reliable water supply system for residential and commercial buildings.

In contrast, other chapters focus on different aspects of plumbing systems. The chapter on drainage deals with the systems responsible for removing wastewater, venting pertains to air flow management to prevent pressure issues in plumbing systems, and the chapter on fixtures covers the appliances and devices connected to plumbing systems, such as sinks and toilets. Each of these chapters has a distinct emphasis and does not primarily address the materials used for pipes themselves.