BS ISO 18132-1:2011:2012 Edition
$167.15
Refrigerated hydrocarbon and nonpetroleum based liquefied gaseous fuels. General requirements for automatic tank gauges – Automatic tank gauges for liquefied natural gas on board marine carriers and floating storage
| Published By | Publication Date | Number of Pages |
| BSI | 2012 | 34 |
This part of ISO 18132 establishes general principles for the accuracy, installation, calibration and verification of automatic tank gauges (ATGs) used for custody transfer measurement of liquefied natural gas (LNG) on board an LNG carrier or floating storage.
The LNG described in this part of ISO 18132 is either fully refrigerated (i.e. at the cryogenic condition), or partially refrigerated, and therefore the fluid is at or near atmospheric pressure.
This part of ISO 18132 also specifies the technical requirements for data collection, transmission and reception. Specific technical requirements for various automatic tank gauges and accuracy limitations are given in the annexes.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Terms, definitions and abbreviated terms 2.1 Terms and definitions |
| 10 | 2.2 Abbreviated terms 3 General safety precautions 3.1 Compliance with safety regulations, standards, and classification rules |
| 11 | 3.2 Equipment precautions 4 Design requirements 4.1 General |
| 12 | 4.2 Provisions for routine maintenance and verification 4.3 Provision against sudden malfunctions 4.4 Dynamic response 4.5 Minimum measurable level 4.6 Data filtering and averaging 4.7 Compensation for variation of cargo temperatures and/or composition |
| 13 | 4.8 Sealing, security and unsealing 4.9 Redundancy 4.10 Data communication 5 Installation 5.1 General 5.2 Location of installation |
| 14 | 5.3 Protection of tank surface 5.4 Interference of ATGs in a cargo tank 6 Accuracy 6.1 General 6.2 Calibration reference 6.3 Accuracy requirement |
| 15 | 6.4 Readout resolution 7 Recertification of ATGs 7.1 General 7.2 Method of periodic certification 7.3 Maximum permissible error 7.4 Frequency of subsequent calibration and recertification 8 ATG calibration records |
| 16 | Annex A (normative) Calibration and verification of various ATGs in common use |
| 18 | Annex B (normative) Calibration and verification of radar-type ATG |
| 21 | Annex C (normative) Calibration and verification of capacitance-type ATG |
| 24 | Annex D (normative) Calibration and verification of float-type ATG |
| 28 | Annex E (informative) Accuracy limitations of LNG level measurement |
| 29 | Annex F (informative) Uncertainty associated with accuracy test of float-type ATG |
| 30 | Bibliography |
