What would be the color for piping that carries hazardous materials?

The color for piping that carries hazardous materials is typically yellow. This color standard is widely recognized in safety regulations and guidelines, including those set forth by organizations such as the American National Standards Institute (ANSI) and the Occupational Safety and Health Administration (OSHA). Yellow is designated for caution, specifically alerting personnel to potential hazards related to materials that may be unsafe or dangerous.

Using yellow piping helps ensure that employees and first responders can quickly identify and understand the nature of the contents within the pipes, thereby promoting safety and minimizing the risk of accidents or exposure to harmful substances. Proper color coding is essential in industrial settings to enhance communication about the nature of the materials being handled and aid in emergency response efforts.

In contrast, other colors such as dark green, purple, and orange have different designations under color coding systems. Dark green does not typically indicate hazardous materials, while purple is usually associated with reclaimed water or irrigation systems. Orange is often used for hazardous equipment or machinery but does not designate the contents of piping. Thus, yellow is the appropriate choice concerning hazardous materials.