Each length of pipe, fitting, or device used in plumbing shall be _____ _____ with the quality and maker's name.

Each length of pipe, fitting, or device used in plumbing shall be _____ _____ with the quality and maker's name.

• A. Indelibly stamped with the quality and maker's name
• B. Clearly labeled with the quality and maker's name
• C. Stamped with the year of manufacture
• D. Painted with the quality and maker's name

Answer: (A)

Permanent identification is essential because plumbing components stay in service for a long time and face moisture, cleaners, and wear. Indelibly stamping the quality and the maker’s name ensures two critical things: you can verify that the part meets the right standards, and you can trace it back to the manufacturer for warranties or recalls. This mark needs to be permanent and resistant to abrasion, so it remains legible over time. Other options fall short: a label can peel or fade, a year-only stamp doesn’t identify who made the part or its quality, and painting can wear off in a wet, abrasive environment. So a permanent imprint of both quality and maker’s name provides durable, reliable identification throughout the component’s life.

Permanent identification is essential because plumbing components stay in service for a long time and face moisture, cleaners, and wear. Indelibly stamping the quality and the maker’s name ensures two critical things: you can verify that the part meets the right standards, and you can trace it back to the manufacturer for warranties or recalls. This mark needs to be permanent and resistant to abrasion, so it remains legible over time. Other options fall short: a label can peel or fade, a year-only stamp doesn’t identify who made the part or its quality, and painting can wear off in a wet, abrasive environment. So a permanent imprint of both quality and maker’s name provides durable, reliable identification throughout the component’s life.