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    • Scope 

    • Application 

    • The Competent Person 

    • Periodic Examination and Test Criteria 

    • Categories of Gauge 

    • Certified Test Instrument 

    • Traceability of Measurement Standard 

    • Water Density 

    • Analogue Gauges – Operational Parameters 

    • Digital Gauges – Operational Parameters 

    • Divers’ Wrist-Mounted Depth Gauges 

    • Training of Personnel 

    • References 

    • Appendix 1 – Categories of Gauge and Periodic Examination and Test Criteria 

    • Appendix 2 – Examples of Gauge Accuracy Tolerance 

    Date: Reason: Revision:
    Date:March 2024 Reason:Refresh of preface, references and layout, breakfast; no change to content Revision:Rev. 0.1
    Date:January 2021 Reason:Revised to become an IMCA D document Revision:Rev.
    Date:May 1994 Reason:Initial publication as AODC document Revision:Rev.