BS ISO 4266-2:2002
$102.76
Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods – Measurement of level in marine vessels
| Published By | Publication Date | Number of Pages |
| BSI | 2002 | 20 |
This part of ISO 4266 gives guidance on the accuracy, installation, calibration and verification of automatic level gauges (ALGs), both intrusive and non-intrusive, for measuring the level of petroleum and liquid petroleum products having a Reid vapour pressure less than 100 kPa, transported aboard marine vessels (i.e. tankers and barges).
This part of ISO 4266 gives guidance for buyers and sellers who mutually agree to use marine ALGs for either fiscal and/or custody transfer applications.
This part of ISO 4266 is not applicable to the measurement of level in refrigerated cargo tanks.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 3 | TitlePage – Petroleum and liquid petroleum products�— Measurement of level and temperature in sto… |
| 5 | TableofContent – Contents Page |
| 7 | Foreword – Foreword |
| 8 | Introduction – Introduction |
| 9 | Scope – 1��� Scope NormativeReference – 2��� Normative references |
| 10 | Clause1 – 4��� Precautions Subclause2 – 4.1��� Safety precautions Subclause3 – 4.1.1��� General Subclause3 – 4.1.2��� Equipment precautions UntitledSubclause4 – 4.1.2.1��� All marine ALGs should be capable of withstanding the pressure, t… UntitledSubclause4 – 4.1.2.2��� All ALGs should be sealed to withstand the vapour pressure of liq… UntitledSubclause4 – 4.1.2.3��� All marine ALGs should be specified and installed in accordance w… UntitledSubclause4 – 4.1.2.4��� The ALGs should provide security to prevent unauthorized adjustme… |
| 11 | Subclause2 – 4.2��� General precautions Subclause3 – 4.2.1��� Accuracy and performance Subclause3 – 4.2.2��� Speed of response Subclause3 – 4.2.3��� Protection from mechanical damage Subclause3 – 4.2.4��� Manual gauging Subclause3 – 4.2.5��� Minimum measurable level Subclause3 – 4.2.6��� Trim and list Subclause3 – 4.2.7��� Product temperatures Subclause3 – 4.2.8��� Compatibility |
| 12 | Subclause3 – 4.2.9��� Entrained air and vapour Subclause3 – 4.2.10��� Vessel motion Subclause2 – 4.3��� Use of marine ALGs in fiscal/custody transfer Clause1 – 5��� Accuracy Subclause2 – 5.1��� Intrinsic error of ALGs Subclause2 – 5.2��� Calibration prior to installation Subclause2 – 5.3��� Initial shipyard adjustment |
| 13 | Subclause2 – 5.4��� Error caused by operating conditions Subclause2 – 5.5��� Overall accuracy Subclause3 – 5.5.1��� General Subclause3 – 5.5.2��� Use of ALGs for fiscal/custody transfer purposes Clause1 – 6��� Installation of marine ALGs Subclause2 – 6.1��� General Subclause2 – 6.2��� Location of ALG Subclause2 – 6.3��� Location of manual calibration check point Subclause2 – 6.4��� Gauging of inerted tanks |
| 14 | Clause1 – 7��� Onboard verification of marine ALGs Subclause2 – 7.1��� General precautions Subclause3 – 7.1.1��� Check for smooth operation of level-sensing elements�— at the shipyard Subclause3 – 7.1.2��� ALG technology-specific considerations Subclause2 – 7.2��� Verification by innage gauging or ullage gauging Subclause2 – 7.3��� Initial verification Subclause2 – 7.4��� Subsequent verification Subclause3 – 7.4.1��� General Subclause3 – 7.4.2��� Agreement between ALG reading and manual gauge reading Subclause3 – 7.4.3��� Use of average gauge readings |
| 15 | Subclause3 – 7.4.4��� Adjustment of the ALG UntitledSubclause4 – 7.4.4.1��� If the difference between the average ALG reading and the average… UntitledSubclause4 – 7.4.4.2��� After adjustment, the reading by ALG should be compared with the … UntitledSubclause4 – 7.4.4.3��� If the ALG cannot be adjusted to agree with the average manual ga… Subclause2 – 7.5��� Verification by alternate methods Subclause2 – 7.6��� Schedule for regular ALG verification Subclause2 – 7.7��� Record keeping Clause1 – 8��� Data communication and receiving Subclause2 – 8.1��� Introduction Subclause2 – 8.2��� Use of remote readout in fiscal/custody transfer |
| 16 | Subclause2 – 8.3��� Telemetry and readout equipment |
| 17 | AnnexInformative – Accuracy limitations of marine level measurement |
| 18 | AnnexInformative – Accuracy limitations of marine volume measurement |
| 19 | Bibliography – Bibliography |
