['Confined Spaces']

['Permit-Required Confined Spaces']

03/12/2026

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Confined Spaces - Permit-Required Confined Spaces
FAQ

FAQ

How often should air monitoring equipment be calibrated?

RegSense Confined Spaces Safety & Health General Industry Safety Permit-Required Confined Spaces Best Results FAQ English Focus Area USA

OSHA states that “Before an employee enters the space, the internal atmosphere shall be tested, with a calibrated direct-reading instrument,” but OSHA does not say how often the equipment should be calibrated. OSHA would expect an employer to follow the equipment manufacturer’s instructions for the instrument’s calibration, use, and maintenance. Employer may also want to consult with an industrial hygienist for recommendations on air monitoring equipment selection and use. Appendix B of the standard says the equipment has to be sensitive and specific enough to identify and evaluate the atmospheric hazards.

['Confined Spaces']

['Permit-Required Confined Spaces']

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