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Rules for inspection of import liquefied natural gas. Part 2: Board ship
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SN/T 2378.2-2010
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Basic data | Standard ID | SN/T 2378.2-2010 (SN/T2378.2-2010) | | Description (Translated English) | Rules for inspection of import liquefied natural gas. Part 2: Board ship | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | E98 | | Classification of International Standard | 75.180.30 | | Word Count Estimation | 13,190 | | Date of Issue | 2010-01-10 | | Date of Implementation | 2010-07-16 | | Quoted Standard | ISO 6578-1991; ISO 6974; ISO 8311-1991; ISO 8943 | | Adopted Standard | ISO 13398-1997, MOD | | Regulation (derived from) | National Quality Inspection [2010] No. 13 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the liquefied natural gas (LNG) ship on the custody transfer method. Use level measuring liquid level, use thermometer to measure the temperature of the liquid and vapor, and the use of steam pressure gauge measuring method of cargo space. This standard applies to ship LNG cabin inspection and appraisal. | SN/T 2378.2-2010: Rules for inspection of import liquefied natural gas. Part 2: Board ship---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rules for inspection of import liquefied natural gas.Part 2. Board ship
Exit inspection and quarantine industry standard book People's Republic of China
Inspection of imported liquefied natural gas
Part 2. Test Cabin
(ISO 13398.1997, Refrigeratedlighthydrocarbonfluids-Liquefied
naturalgas-Procedureforcustodytransferonboardship, MOD)
Issued on. 2010-01-10
2010-07-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
SN/T 2378 "for the inspection of imported liquefied natural gas" series of standards is divided into 2 parts.
--- Part 1. Pipeline inspection;
--- Part 2. Cabin inspection;
This is Part 2 SN/T 2378 "for the inspection of imported liquefied natural gas" series of standards.
The partial modification of international standard ISO 13398.1997 "refrigerated light hydrocarbon liquids --- --- ship liquefied natural gas custody transfer process
sequence".
According to this part of ISO 13398.1997 redrafted. This section lists the reg number and ISO 13398 in Appendix A. Chapter 1997
Article number of the control list.
This part of ISO 13398.1997 compared to the main differences are as follows.
--- Increasing the scope of the standard.
--- Delete obsolete ISO 6568. 1981, increasing the ISO 6974.2000 "under a certain degree of uncertainty determined by gas chromatography days
The composition of natural gas "(Chapter 2).
--- Delete obsolete ISO 8309.1991 "refrigerated liquefied light hydrocarbon liquid storage tanks capacitive liquid level measurement
Level meter. "
--- Delete obsolete ISO 10574.1993 "Refrigerated light hydrocarbon liquid storage tank level measurement of liquefied gas liquid liquid float
Level meter. "
--- According to GB/T 1.1-2000 standard editorial changes to the text.
--- The title to read "Rules for the inspection of imported liquefied natural gas - Part 2. Test the cabin."
--- Deletion of the ISO 13398.1997 (E) of the Preamble and Introduction.
--- Deletion of the ISO 13398.1997 (E) in the informative Appendix B.
Appendix B of this section is normative Appendix Appendix A is informative appendix.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This part of the People's Republic of China by the Shenzhen Entry-Exit Inspection and Quarantine is responsible for Ningbo People's Republic of China
Drafted.
The main drafters of this section. Zhangqi Fang Yang Fan shuttle, Chen Guofeng, Ye Ruijun, according to Kim Jin.
The first part of the Department of Inspection and Quarantine issued by industry standards.
Inspection of imported liquefied natural gas
Part 2. Test Cabin
1 Scope
This section provides the liquefied natural gas (LNG) ship custody transfer method. The use of liquid level gauge measurement, the use of temperature
Measuring the temperature of liquid and vapor, and the use of measuring gauge cargo tank vapor pressure method.
This section applies to vessels carrying liquefied natural gas cabin inspection and appraisal.
2 Normative references
The following documents contain provisions which, through reference SN/T 2378 to the present, constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section. However, encouraged to reach agreement under this section
All parties that proposed to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
ISO 6578.1991 Refrigerated light hydrocarbon liquid static measurement calculation program
ISO 6974 under a certain degree of uncertainty determine the composition of natural gas by gas chromatography
Calibration physical measurement 1991 Refrigerated light hydrocarbon liquid from inside the ship films and independent prismatic tanks. ISO 8311
ISO 8943 Refrigerated light hydrocarbon liquid LNG sampling continuous and intermittent sampling method
3 Terms and Definitions
The following terms and definitions apply to this section.
3.1
"Boiling" Gas BOG
Effect of steam near the storage of liquefied natural gas under atmospheric conditions (LNG) produced (heat conduction at low temperatures, a certain amount
Liquefied natural gas (LNG) will evaporate or "boiling").
3.2
In the loading and unloading of liquefied natural gas (LNG), respectively, after the custody transfer loading and unloading port.
3.3
Temperature of the liquid level, liquid and vapor, vapor pressure measurement, as well as transporting or unloading cargo of liquefied natural gas (LNG) component
Analysis to determine the volume and other data in this way, as a basis for payment of fees or tariffs on the basis of assessment.
3.4
By a system level gauge, a thermometer and a pressure gauge constituted for the purpose of custody transfer for fluid tracking ship's cargo tanks
Level, temperature and pressure.
3.5
Before loading and unloading liquefied natural gas (LNG), respectively, in the loading and unloading ports were closed conveyance.
3.6
For any temperature lower cargo tank of liquefied natural gas (LNG) volume corrected to reference temperature coefficient of volume thereof.
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