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GB/T 30491.2-2024 Natural gas - Calculation of thermodynamic properties - Part 2: Single-phase (gas, liquid and dense phase) fluid properties with extended application range 天然气-热力学性质计算-第2部分：扩展应用范围的单相（气相、液相和稠密相）流体性质 - 中英文版 |
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GB/T 27894.3-2023 Natural gas - Determination of composition and calculation of associated uncertainties by gas chromatography - Part 3: Precision and bias 天然气 用气相色谱法测定组成和计算相关不确定度 第3部分：精密度和偏差 - 中英文版 |
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GB/T 27894.1-2020 Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 1: General guidelines and calculation of composition 天然气 用气相色谱法测定组成和计算相关不确定度 第1部分：总导则和组成计算 - 中英文版 |
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GB/T 27894.2-2020 Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 2: Uncertainty calculations 天然气 用气相色谱法测定组成和计算相关不确定度 第2部分：不确定度计算 - 中英文版 |
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GB/T 11062-2020 Natural gas—Calculation of calorific values, density, relative density and Wobbe indices from composition 天然气 发热量、密度、相对密度和沃泊指数的计算方法 - 中英文版 |
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GB/Z 35474-2017 Natural gas—Technical explanation for calculation of physical properties from composition 天然气 通过组成计算物性参数的技术说明 - 中英文版 |
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GB/T 11062-2014 Natural gas―Calculation of calorific values，density，relative density and Wobbe index 天然气 发热量、密度、相对密度和沃泊指数的计算方法 - 中英文版 |
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GB/T 30491.1-2014 Natural gas—Calculation of thermodynamic properties—Part 1: Gas phase properties for transmission and distribution applications 天然气 热力学性质计算 第1部分：输配气中的气相性质 - 中英文版 |
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GB/T 20657-2011 Petroleum and natural gas industries - Equations and calculations for the properties of casing, tubing, drill pipe and line pipe used as casing and tubing 石油天然气工业套管、油管、钻杆和用作套管或油管的管线管性能公式及计算 - 中英文版 |
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GB/T 17747.2-2011 Natural gas - Calculation of compression factor - Part 2: Calculation using molar-composition analysis 天然气压缩因子的计算 第2部分：用摩尔组成进行计算 - 中英文版 |
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GB/T 17747.3-2011 Natural gas - Calculation of compression factor - Part 3: Calculation using physical properties 天然气压缩因子的计算 第3部分：用物性值进行计算 - 中英文版 |
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GB/T 17747.1-2011 Natural gas - Calculation of compression factor - Part 1: Introduction and guidelines 天然气压缩因子的计算 第1部分：导论和指南 - 中英文版 |
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GB/T 19829.2-2005 Petroleum and natural gas industries-Life cycle costing-Part 2:Guidance on application of methodology and calculation methods 石油天然气工业 寿命周期费用分析 第2部分:方法论和计算方法应用指南 - 中英文版 |
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