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).<\/p>\n
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.<\/p>\n
This part of ISO 4266 is not applicable to the measurement of level in refrigerated cargo tanks.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 3<\/td>\n | TitlePage – Petroleum and liquid petroleum products\ufffd\u2014 Measurement of level and temperature in sto… <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | TableofContent – Contents Page <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Foreword – Foreword <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Introduction – Introduction <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Scope – 1\ufffd\ufffd\ufffd Scope NormativeReference – 2\ufffd\ufffd\ufffd Normative references <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Clause1 – 4\ufffd\ufffd\ufffd Precautions Subclause2 – 4.1\ufffd\ufffd\ufffd Safety precautions Subclause3 – 4.1.1\ufffd\ufffd\ufffd General Subclause3 – 4.1.2\ufffd\ufffd\ufffd Equipment precautions UntitledSubclause4 – 4.1.2.1\ufffd\ufffd\ufffd All marine ALGs should be capable of withstanding the pressure, t… UntitledSubclause4 – 4.1.2.2\ufffd\ufffd\ufffd All ALGs should be sealed to withstand the vapour pressure of liq… UntitledSubclause4 – 4.1.2.3\ufffd\ufffd\ufffd All marine ALGs should be specified and installed in accordance w… UntitledSubclause4 – 4.1.2.4\ufffd\ufffd\ufffd The ALGs should provide security to prevent unauthorized adjustme… <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Subclause2 – 4.2\ufffd\ufffd\ufffd General precautions Subclause3 – 4.2.1\ufffd\ufffd\ufffd Accuracy and performance Subclause3 – 4.2.2\ufffd\ufffd\ufffd Speed of response Subclause3 – 4.2.3\ufffd\ufffd\ufffd Protection from mechanical damage Subclause3 – 4.2.4\ufffd\ufffd\ufffd Manual gauging Subclause3 – 4.2.5\ufffd\ufffd\ufffd Minimum measurable level Subclause3 – 4.2.6\ufffd\ufffd\ufffd Trim and list Subclause3 – 4.2.7\ufffd\ufffd\ufffd Product temperatures Subclause3 – 4.2.8\ufffd\ufffd\ufffd Compatibility <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Subclause3 – 4.2.9\ufffd\ufffd\ufffd Entrained air and vapour Subclause3 – 4.2.10\ufffd\ufffd\ufffd Vessel motion Subclause2 – 4.3\ufffd\ufffd\ufffd Use of marine ALGs in fiscal\/custody transfer Clause1 – 5\ufffd\ufffd\ufffd Accuracy Subclause2 – 5.1\ufffd\ufffd\ufffd Intrinsic error of ALGs Subclause2 – 5.2\ufffd\ufffd\ufffd Calibration prior to installation Subclause2 – 5.3\ufffd\ufffd\ufffd Initial shipyard adjustment <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Subclause2 – 5.4\ufffd\ufffd\ufffd Error caused by operating conditions Subclause2 – 5.5\ufffd\ufffd\ufffd Overall accuracy Subclause3 – 5.5.1\ufffd\ufffd\ufffd General Subclause3 – 5.5.2\ufffd\ufffd\ufffd Use of ALGs for fiscal\/custody transfer purposes Clause1 – 6\ufffd\ufffd\ufffd Installation of marine ALGs Subclause2 – 6.1\ufffd\ufffd\ufffd General Subclause2 – 6.2\ufffd\ufffd\ufffd Location of ALG Subclause2 – 6.3\ufffd\ufffd\ufffd Location of manual calibration check point Subclause2 – 6.4\ufffd\ufffd\ufffd Gauging of inerted tanks <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Clause1 – 7\ufffd\ufffd\ufffd Onboard verification of marine ALGs Subclause2 – 7.1\ufffd\ufffd\ufffd General precautions Subclause3 – 7.1.1\ufffd\ufffd\ufffd Check for smooth operation of level-sensing elements\ufffd\u2014 at the shipyard Subclause3 – 7.1.2\ufffd\ufffd\ufffd ALG technology-specific considerations Subclause2 – 7.2\ufffd\ufffd\ufffd Verification by innage gauging or ullage gauging Subclause2 – 7.3\ufffd\ufffd\ufffd Initial verification Subclause2 – 7.4\ufffd\ufffd\ufffd Subsequent verification Subclause3 – 7.4.1\ufffd\ufffd\ufffd General Subclause3 – 7.4.2\ufffd\ufffd\ufffd Agreement between ALG reading and manual gauge reading Subclause3 – 7.4.3\ufffd\ufffd\ufffd Use of average gauge readings <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Subclause3 – 7.4.4\ufffd\ufffd\ufffd Adjustment of the ALG UntitledSubclause4 – 7.4.4.1\ufffd\ufffd\ufffd If the difference between the average ALG reading and the average… UntitledSubclause4 – 7.4.4.2\ufffd\ufffd\ufffd After adjustment, the reading by ALG should be compared with the … UntitledSubclause4 – 7.4.4.3\ufffd\ufffd\ufffd If the ALG cannot be adjusted to agree with the average manual ga… Subclause2 – 7.5\ufffd\ufffd\ufffd Verification by alternate methods Subclause2 – 7.6\ufffd\ufffd\ufffd Schedule for regular ALG verification Subclause2 – 7.7\ufffd\ufffd\ufffd Record keeping Clause1 – 8\ufffd\ufffd\ufffd Data communication and receiving Subclause2 – 8.1\ufffd\ufffd\ufffd Introduction Subclause2 – 8.2\ufffd\ufffd\ufffd Use of remote readout in fiscal\/custody transfer <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Subclause2 – 8.3\ufffd\ufffd\ufffd Telemetry and readout equipment <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | AnnexInformative – Accuracy limitations of marine level measurement <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | AnnexInformative – Accuracy limitations of marine volume measurement <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Bibliography – Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Petroleum and liquid petroleum products. Measurement of level and temperature in storage tanks by automatic methods – Measurement of level in marine vessels<\/b><\/p>\n |