What are the management rules for pressure gauges?
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What are the standards for pressure gauges used in chemical enterprises, and do they all need to be inspected every six months? How to manage gas cylinder pressure gauges? For example, do pressure gauges for fire extinguishers and air respirators also need to be inspected? Are there any relevant regulations? Thank you
All require semi-annual calibration, and the pressure gauges on fire extinguishers and air respirators also need to be calibrated!
Some last a year, while others last half a year