What color is a CAL tag?

What color is a CAL tag?

• A. Green
• B. Orange
• C. Yellow
• D. Purple

Answer: (B)

The main idea is that color-coding on equipment tags quickly communicates status, and orange is used for calibration-related tags. An orange CAL tag stands out to show the instrument has been calibrated but requires attention to its calibration date and due date. This visibility helps ensure readings remain accurate, since you’ll know at a glance when the next calibration is due. Green is typically used for ready/in-service, yellow for caution or general service needs, and purple isn’t a standard color for calibration in many tagging schemes, so orange uniquely flags calibration status.

The main idea is that color-coding on equipment tags quickly communicates status, and orange is used for calibration-related tags. An orange CAL tag stands out to show the instrument has been calibrated but requires attention to its calibration date and due date. This visibility helps ensure readings remain accurate, since you’ll know at a glance when the next calibration is due. Green is typically used for ready/in-service, yellow for caution or general service needs, and purple isn’t a standard color for calibration in many tagging schemes, so orange uniquely flags calibration status.