When documenting maintenance, which element is essential to determine future service needs?

When documenting maintenance, which element is essential to determine future service needs?

• A. The weather at the site
• B. The color of the tool used
• C. The date, technician, location, readings, test results, valve/regulator status, leaks found, actions taken, and next service date.
• D. The gas type used in the system

Answer: (C)