Petroleum and liquid petroleum products — Measurement of level and temperature in storage tanks by automatic methods — Part 3: Measurement of level in pressurized storage tanks (non-refrigerated)
ISO 4266-3 gives guidance on the accuracy, installation, commissioning, calibration and verification of automatic level gauges (ALGs) both intrusive and non-intrusive, for measuring the level of petroleum and petroleum products having a vapour pressure less than 4 MPa, stored in pressurized storage tanks.
ISO 4266-3 gives guidance on the use of ALGs in custody transfer application.
ISO 4266-3 is not applicable to the measurement of level in caverns and refrigerated storage tanks with ALG equipment.
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