Should calibrations be every 6 months or 12 months?

There isn't a single universal answer for whether calibrations should be every 6 months or 12 months, as it depends on several factors:

• Manufacturer's recommendations: Instrument manufacturers often specify a recommended calibration interval.
• Industry standards and regulations: Specific industries or regulatory bodies (like OSHA or ISO) may have their own requirements. For critical safety equipment, more frequent calibration might be mandated.
• Usage and environment: Instruments used frequently, in harsh conditions, or for highly critical measurements may require more frequent calibration (e.g., every 6 months).
• Accuracy requirements: If the application demands very high precision, a shorter calibration interval helps ensure accuracy.

While 12 months is a common calibration interval for many instruments, for critical applications like pressure gauges used in hydrotesting, a 6-month interval might be preferred or required by company policy or specific safety standards to ensure maximum reliability and safety.