GOST 31369-2008
ГОСТ 31369-2008
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Natural gas. Calculation of calorific values, density, relative density and Wobbe index from composition
Газ природный. Вычисление теплоты сгорания, плотности, относительной плотности и числа Воббе на основе компонентного состава
Status: Effective - Introduced for the first time
The standard applies to the physico-chemical indicators of the quality of natural gas and establishes algorithms for calculating the values of higher calorific value, net calorific value, density, relative density and Wobbe index of natural gases, simulators of natural gas and other combustible gaseous fuels according to the known component composition of gas under standard measurement conditions . To calculate the physico-chemical indicators of the quality of natural gas, the values of various physical quantities of the pure components given in the standard are used. This standard provides methods for assessing the accuracy of the calculated values of the main indicators of natural gas quality. The methods for calculating the values of quality indicators based on the molar fraction or mass concentration are applicable to any composition of natural gas, natural gas simulator or other combustible fuel, which is usually in a gaseous state. To calculate the values of gas quality indicators, the composition of which is known in volume fractions, these methods are applicable only for gases consisting mainly of methane (methane mole fraction not less than 0.5).
Стандарт распространяется на физико-химические показатели качества природного газа и устанавливает алгоритмы вычисления значений высшей теплоты сгорания, низшей теплоты сгорания, плотности, относительной плотности и числа Воббе природных газов, имитаторов природного газа и других горючих газообразных топлив по известному компонентному составу газа при стандартных условиях измерений. Для вычисления физико-химических показателей качества природного газа используют значения различных физических величин чистых компонентов, приведенных в стандарте. В настоящем стандарте приведены методы оценки точности вычисленных значений основных показателей качества природного газа. Методы вычисления значений показателей качества на основе молярной доли или массовой концентрации применимы к любому составу природного газа, имитатора природного газа или другого горючего топлива, которое обычно находится в газообразном состоянии. Для вычисления значений показателей качества газа, состав которого известен в объемных долях, эти методы применимы только для газов, состоящих, в основном, из метана (молярная доля метана не менее 0,5).
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Format: Electronic (pdf/doc)
Approved: Federal Agency for Technical Regulation and Metrology,
12/17/2008
SKU: RUSS68920
The Product is Contained in the Following Classifiers:
PromExpert »
SECTION I. TECHNICAL REGULATION »
V Testing and control »
4 Testing and control of products »
4.2 Testing and control of products of fuel and energy industry »
4.2.2 Oil, oil products and gas »
ISO classifier »
75 EXTRACTION AND PROCESSING OF OIL, GAS AND RELATED PRODUCTION »
75.060 Natural Gas »
National standards »
75 EXTRACTION AND PROCESSING OF OIL, GAS AND RELATED PRODUCTION »
75.060 Natural Gas »
National Standards for KGS (State Standards Classification) »
Latest edition »
B Oil products »
B1 Liquid and gaseous fuel »
B19 Test methods. Packaging. Marking »
The Document is Replaced With:
GOST 31369-2021: Natural gas. Calculation of heat of combustion, density, relative density and Wobbe number based on component composition
The Document References:
GOST 1.0-92: State System for Standardization of Russian Federation. Basic principles
GOST 1.2-97: Interstate system for standardization. Interstate standards, rules and recommendations on interstate standardization. Procedure for development, taking over application, renovation and cancellation
GOST 20060-83: Combustible natural gases. Methods for determining water vapor content and dew point of moisture
GOST 30319.1-96: Natural gas. Methods for the evaluation of physical properties
GOST 31371.7-2008: Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 7. Measurement procedure of the mole fraction of components
The Document is Referenced By:
Decision 112: On the list of international and regional (interstate) standards, and in their absence - national (state) standards, containing rules and methods of research (tests) and measurements, including rules of sampling, necessary for the application and implementation of the requirements of technical regulation of the Eurasian Economic Union "On safety of combustible natural gas prepared for transportation and (or) use" (TR EAEC 046/2018) and conformity assessment of technical regulation
GOST 10679-2019: Liquefied hydrocarbon gases. Method for the determination of hydrocarbon composition
GOST 22387.2-2014: Combustible natural gases. Methods for determination of hydrogen sulphide and mercaptan sulphur
GOST 26374-2018: Combustible natural gas. Determination of total sulphur
GOST 27577-2022: Compressed natural fuel gas for internal combustion engines. Specifications
GOST 28656-2019: Liquefied hydrocarbon gases. Calculation method for determining the density and pressure of saturated vapors
GOST 30319.1-2015: Natural gas. Methods of calculation of physical properties. General statements
GOST 30319.2-2015: Natural gas. Methods of calculation of physical properties. Calculation of physical properties on base information on density of standards conditions and nitrogen and carbon dioxide contents
GOST 31371.2-2008: Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 2. Measuring-system characteristics and statistics for processing of data
GOST 33998-2016: Domestic gas cooking appliances. General technical requirements, test methods and rational use of energy
GOST 34626-2019: Locomotives and self-propelled special railway rolling stock. Methods for determining the efficiency and power efficiency
GOST 34867-2022: Natural gas prepared for transportation through the main gas pipelines. Technical conditions
GOST 34893-2022: Natural gas. Performance evaluation of analytical systems
GOST 34894-2022: Liquefied natural gas. Technical conditions
GOST 34898-2022: Natural gas. Auxiliary information for the calculation of physical properties
GOST 5542-2014: Natural fuel gases for commercial and domestic use. Specifications
GOST 8.578-2014: State system for ensuring the traceability of measurements. State hierarchy scheme for measuring instruments of the content of components in gaseous mediums
GOST 8.611-2013: State system for ensuring the uniformity of measurements. Flow rate and quantity of gas. Procedure for measurements of by ultrasonic meters
GOST R 54446-2011: Non domestic gas-fired overhead luminous radiant heaters. Part 1. Safety requirements
GOST R 54448-2011: Single burner gas-fired overhead radiant tube heaters for non-domestic use. Part 1. Safety requirements
GOST R 54788-2011: Gas-fired absorption and adsorption air-conditioning and/or heat pump appliances with a net heat input not exceeding 70 kW. Part 1. Safety
GOST R 55202-2012: Gas-fired mixing air heaters for heating greenhouses and similar non-domestic spaces
GOST R 55203-2012: Gas-fired air heaters with air-flue gases mixing with forced convection for heating non-domestic premises nominal heat output of up to 300 kW
GOST R 55204-2012: Non-domestic gas-fired convective air heaters, incorporating a fan to transportation of combustion air or combustion products, nominal heat output of up to 300 kW
GOST R 55598-2013: Associated gas. Classification criterions
GOST R 55798-2013: Gas Turbines. Methods of testing. Acceptance tests
GOST R 56021-2014: Liquefied natural gas. Fuel for internal-combustion engine and generating unit. Specifications
GOST R 56188.3.200-2023: Fuel Cell Technologies. Part 3-200. Stationary fuel cell power plants. Test methods for determining operating characteristics
GOST R 56333-2015: Combustible natural gases. Standard conditions of measurement and calculation of physicochemical characteristics
GOST R 57614-2017: Natural combustible gas. Energy determination
GOST R 57851.2-2017: Gas-condensate mixture. Part 2. Unstable gas condensate. Compositional analysis by gas chromatography method with preliminary sample degasification
GOST R 57851.4-2017: Gas-condensate mixture. Part 4. Calculation of the component-fraction composition
GOST R 57975.1-2017: Associated oil gas. Determination of composition by gas chromatography method. Part 1. Determination of hydrocarbons C1-C8+ and inorganic gases content by flame ionization detector and thermal conductivity detector
GOST R 57975.2-2017: Аssociated oil gas. Determination of composition by gas chromatography. Part 2. Determination of sulfur compounds using flame photometric detector
GOST R 8.662-2009: State system for ensuring the uniformity of measurements. Natural gas. Gas phase thermodynamic properties. Methods of calculation for transmission and distribution applications on base of the AGA8 fundamental equation of state
GOST R 8.667-2009: State system for ensuring the uniformity of measurements. State verification schedule for means measuring energy of combustion, specific energy of combustion and volumetric energy of combustion (combustion calorimeters)
GOST R 8.668-2009: State system for ensuring the uniformity of measurements. Volumetric heat (energy) of combustion of natural gas. General requirements for methods for measurement
GOST R 8.740-2011: State system for ensuring the uniformity of measurements. Flow rate and quantity of gas. Measurements procedure by turbine, rotary and vortex flow meters and gas meters
GOST R 8.741-2011: State system for ensuring the uniformity of measurements. Volume of natural gaz. General requirements for measurement procedure
GOST R 8.741-2019: State system for ensuring the uniformity of measurements. The volume of natural gas. General requirements for measurement procedures
GOST R 8.769-2011: State system for ensuring the uniformity of measurements. Natural gas. Compression factor of gas phase. Method of calculation based on gas physical properties
GOST R 8.816-2013: State system for ensuring the uniformity of measurements. Natural gas. Volumetric heat (energy) of combustion. Method for measurement using the bomb calorimeter
GOST R 8.882-2015: State system for ensuring the uniformity of measurements. The volume of natural gas. Method of error calculations in measurements of natural gas volume at reference conditions. Basic principles
GOST R 8.914-2016: The state system for ensuring the uniformity of measurements. Gas calorimeters. Verification procedure
GOST R 8.919-2016: State system for ensuring the uniformity of measurements. Reference systems for certification reference materials composition of magistral natural gas and substitute natural gas. The method of verification
GOST R ISO 10723-2016: Combustible natural gas. Performance evaluation for analytical systems
ITS 50-2017: Processing of natural and accompanying gas
MI 3235-2009: Recommendation. State system for ensuring uniformity of measurements. Turbine, rotational and vortex gas meters as part of gas metering stations. Method for determining the error (total uncertainty) of gas volume measurements in real conditions of operati
Order 2828: On approval of the State verification scheme for measuring instruments of combustion energy, specific combustion energy and volumetric combustion energy
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