E24 天然气 标准查询与下载

ASTM D4984-06 使用着色长度检测管对天然气中的二氧化碳的试验方法

The measurement of carbon dioxide in natural gas is important, because of the gas quality specifications, the corrosive nature of carbon dioxide on pipeline materials, and the affects of carbon dioxide on utilization equipment. This test method provides inexpensive field screening of carbon dioxide. The system design is such that it may be used by nontechnical personnel with a minimum of proper training.1.1 This test method covers a rapid and simple field determination of carbon dioxide in natural gas pipelines. Available detector tubes provide a total measuring range of 100 ppm (parts per million) up to 60 % by volume, although the majority of applications will be on the lower end of this range (that is, under 5 %). At least one manufacturer provides a special kit for measurements from 10 to 100 % CO2, but the normal 100-cc hand pump is not used. See Note 1.Note 18212;High-range carbon dioxide detector tubes will have measuring ranges in percent (%) CO2, and low-range tubes will be in parts per million (ppm). To convert percent to ppm, multiply by 10 000 (1 % = 10 000 ppm).1.2 The values stated in SI units are regarded as standard. The inch-pound units in parentheses are for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Carbon Dioxide in Natural Gas Using Length-of-Stain Detector Tubes

NF X20-510-6*NF EN ISO 6974-6:2005 天然气.用气相色谱法测定规定的不确定度的组分.第6部分:用三个毛细管柱测定氢、氦、氧、氮、二氧化碳和C1到C8的烃类

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6 : determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns.

NF X20-512:2005 天然气.词汇.

Natural gas - Vocabulary.

NF X20-522:2005 天然气.成分的热值、密度、相对密度和沃泊指数的计算

Natural gas - Calculation of calorific values, density, relative density and Wobbe index from composition.

NF X20-525-1*NF EN ISO 6978-1:2005 天然气.汞的测定.第1部分:碘化学吸附法对汞的采样

Natural gas - Determination of mercury - Part 1 : sampling of mercury by chemisorption on iodine.

CSA B149HB-05-2005 天然气和丙烷规范指南

Guide du code sur le gaz naturel et le propane

Guide to the Natural Gas and Propane Code

DIN EN ISO 12213-2:2005 天然气.压缩因子的计算.第2部分:摩尔代数运算分析

This International Standard specifies methods for the calculation of compression factors of natural gases, natural gases containing a synthetic admixture and similar mixtures at conditions under which the mixture can exist only as a gas. This part of ISO 12213 specifies a method for the calculation of compression factors when the detailed composition of the gas by mole fractions is known, together with the relevant pressures and temperatures. The method is applicable to pipeline quality gases within the ranges of pressure p and temperature T at which transmission and distribution operations normally take place, with an uncertainty of about + 0,1%. It can be applied, with greater uncertainty, to wider ranges of gas composition, pressure and temperature (see annex E). More detail concerning the scope and field of application of the method is given in part 1 of this International Standard.

Natural gas - Calculation of compression factor - Part 2: Calculation using molar-composition analysis (ISO 12213-2:1997); German version EN ISO 12213-2:2005

DIN EN ISO 12213-3:2005 天然气.压缩因子的计算.第3部分:用物理特性计算

This International Standard specifies methods for the calculation of compression factors of natural gases, natural gases containing a synthetic admixture and similar mixtures at conditions under which the mixture can exist only as a gas. This part of ISO 12213 specifies a method for the calculation of compression factors when the superior calorific value, relative density and carbon dioxide content are known, together with the relevant pressures and temperatures. If hydrogen is present, as is often the case for gases with a synthetic admixture, the hydrogen content also needs to be known. NOTE-- In principle, it is possible to calculate the compression factor when any three of the parameters superior calorific value, relative density, carbon dioxide content (the usual three) and nitrogen content are known, but subsets including nitrogen content are not recommended. The method is primarily applicable to pipeline quality gases within the ranges of pressure p and temperature T at which transmission and distribution operations normally take place, with an uncertainty of about _+ 0,1%. For wider- ranging applications the uncertainty of the results increases (see annex E). More detail concerning the scope and field of application of the method is given in part 1 of this International Standard.

Natural gas - Calculation of compression factor - Part 3: Calculation using physical properties (ISO 12213-3:1997); German version EN ISO 12213-3:2005

DIN EN ISO 12213-1:2005 天然气.压缩因子的计算.第1部分:说明和指南

This International Standard specifies methods for the calculation of compression factors of natural gases, natural gases containing a synthetic admixture and similar mixtures at conditions under which the mixture can exist only as a gas. The standard is in three parts: part 1 gives an introduction and provides guidelines for the methods of calculation described in parts 2 and 3. Part 2 gives a method for use where the detailed molar composition of the gas is known. Part 3 gives a method for use where a less detailed analysis, comprising superior calorific value (volumetric basis), relative density, carbon dioxide content and (if non-zero) hydrogen content, is available. Both methods are applicable to dry gases of pipeline quality within the range of conditions under which transmission and distribution, including metering for custody transfer or other accounting purposes, are normally carried out. In general, such operations take place at temperatures between about 263 K and 338 K (approximately - 10 ~C to 65 ~C) and pressures not exceeding 12 MPa (120 bar). Within this range, the uncertainty of prediction of both methods is about _+ 0,1% provided that the input data, including the relevant pressure and temperature, have no uncertainty. NOTE -- Pipeline quality gas is used in this International Standard as a concise term for gas which has been processed so as to be suitable for use as industrial, commercial or domestic fuel. Although there is no formal international agreement upon the composition and properties of a gas which complies with this concept, some quantitative guidance is provided in 5.1.1. A detailed gas quality specification is usually a matter for contractual arrangements between buyer and seller. The method given in part 2 is also applicable (with increased uncertainty) to broader categories of natural gas, including wet or sour gases, within a wider range of temperatures and to higher pressures, for example at reservoir or underground storage conditions or for vehicular (NGV) applications. The method given in part 3 is applicable to gases with a higher content of nitrogen, carbon dioxide or ethane than normally found in pipeline quality gas. The method may also be applied over wider ranges of temperature and pressure but with increased uncertainty. For the calculation methods described to be valid, the gas must be above its water and hydrocarbon dewpoints at the prescribed conditions. The standard gives all of the equations and numerical values needed to implement both methods. Verified computer programmes are available (see annex B).

Natural gas - Calculation of compression factor - Part 1: Introduction and guidelines (ISO 12213-1:1997); German version EN ISO 12213-1:2005

DIN EN ISO 6976:2005 天燃气.热值、密度和相对密度及化合物沃泊指数的计算

This International Standard specifies methods for the calculation of the superior calorific value, inferior calorific value, density, relative density and Wobbe index of dry natural gases, natural gas substitutes and other combustible gaseous fuels, when the compo- sition of the gas by mole fraction is known. The methods provide a means of calculating the proper- ties of the gas mixture at commonly used metric ref- erence conditions. The methods of calculation require values for various physical properties of the pure components; these values are provided in tables and their sources are identified. Methods are given for estimating the precision of calculated properties. The methods of calculation of the values of properties on either a molar or mass basis are applicable to any dry natural gas, natural gas substitute or other combustible fuel which is normally gaseous. For the calculation of the values of properties on a volumetric basis, the methods are restricted to gases consisting preponderantly of methane (not less than 0,5 mole fraction). Examples of calculations are given in annex D for the recommended methods of calculation. NOTES 1 The symbols used in this International Standard. to- gether with their meanings, are given in annex A. 2 The qualifiers "higher", "upper", "total" and "gross" are, for the purposes of this International Standard, syn- onymous with "superior"; fikewise, "lower" and "net" are synonymous with "inferior". The term "heating value" is synonymous with "calorific value"; "specific gravity" is synonymous with "relative density"; "Wobbe number" is synonymous with 'Wobbe index"; "compressibility factor" is synonymous with "compression factor". 3 If the composition of the gas is known by volume frac- tions these must be converted to mole fractions (see annex C). Note, however, that the derived mole fractions will have uncertainties greater than those of the original volume fractions. 4 For the purposes of this International Standard, the sum of the mole fractions used must be umty to the nearest 0,000 1, and all components with mole fractions greater than 0,000 05 must be accounted for. 5 For the calorific value calculated on a volumetric basis, there are limitations on the amounts of components other than methane which may be present. It is impossible to be definitive on this matter, but the following guidelines may be useful: N2 should not be present in amounts exceeding 0,3 mole fraction; CO2 and C2H6 should each not exceed 0,15 mole frac- tion; no other component should exceed 0,05 mole fraction. Given these limits, the expected trueness of the calculation is within 0,1%. 6 The effects of water vapour on the calortfic value, e~ther directly measured or calculated, are discussed in annex F 7 For the methods of calculation described to be valid, the gas must be above its hydrocarbon dew-point at the pre- scribed reference conditions. 8 The values of basic physical property data are subject to revwsion as more accurate values become ava~labie from authoritat,ve sources.

Natural gas - Calculation of calorific values, density, relative density and Wobbe index from composition (ISO 6976:1995 including Corrigendum 1:1997, Corrigendum 2:1997 and Corrigendum 3:1999); English version of DIN EN ISO 6976

ISO 20765-1:2005 天然气.热力学性质计算.第1部分:传输和分配设施的气相特性

This part of ISO 20765 specifies a method of calculation for the volumetric and caloric properties of natural gases, natural gases containing synthetic admixture and similar mixtures, at conditions where the mixture can exist only as a gas. The method is applicable to pipeline-quality gases within the ranges of pressure, p, and temperature, T, at which transmission and distribution operations normally take place. For volumetric properties (compression factor and density), the uncertainty of calculation is about ±0,1 % (95% confidence interval). For caloric properties (for example enthalpy, heat capacity, Joule-Thomson coefficient, speed of sound), the uncertainty of calculation is usually greater.

Natural gas - Calculation of thermodynamic properties - Part 1: Gas phase properties for transmission and distribution applications

DIN EN ISO 6978-1:2005 天然气.汞的测定.第1部分:用碘化学吸附法对汞的采样

This part of ISO 6978 specifies a method for the determination of total mercury content in natural gas using a sampling method at pressures up to 40 MPa by chemisorption on iodine-impregnated silica gel. This sampling method is suitable for the determination of mercury contents within the range of 0,1 μg/m3 to 5 000 μg/m3 in natural gas. This method is applicable to sampled gas volumes containing less than 20 mg hydrogen sulfide (absolute content) and less than a total liquid hydrocarbon condensate of 10 g/m3 under the sampling conditions. The collected mercury is determined by measuring the absorbance or fluorescence of mercury vapour at 253,7 nm. NOTE ISO 6978-2 gives a sampling method suitable for the determination of mercury content of pipeline natural gas by amalgamation of mercury on gold/platinum alloy thread at atmospheric pressure for the range of mercury from 0,01 μg/m3 to 100 μg/m3 and for sampling at high pressure (up to 8 MPa) from 0,001 μg/m3 to 1 μg/m3.

Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO 6978-1:2003); English version of DIN EN ISO 6978-1

DIN EN ISO 6978-2:2005 天然气.汞的测定.第2部分:用金/铂合金混汞法对汞的采样

This part of ISO 6978 specifies a method for the determination of total mercury content of pipeline quality natural gas using a sampling method by amalgamation on gold/platinum (Au/Pt) alloy thread. This method is applicable to the sampling of raw natural gas when no condensation is present. At atmospheric pressure, this method is suitable for the determination of mercury content within the range of 0,01 iJg/m3 to 100 iJg/m3 in natural gas samples. At higher pressures (up to 8 MPa), this sampling method is suitable for the determination of mercury contents within the range of 0,001 iJg/m3 to 1 IJg/m3. The collected mercury is determined by measuring the absorbance or fluorescence of mercury vapour at 253,7 nm. NOTE ISO 6978-1 gives a sampling method suitable for the determination of mercury contents in natural gas by chemisorption on iodine-impregnated silica gel for the working range of 0,1 pglm3 to 5 000 pg/m3 for sampling at pressures up to 40 MPa.

Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003);English version of DIN EN ISO 6978-2

DIN EN ISO 6975:2005 天然气.延伸分析.气相色谱法

This International Standard describes the specifications for the quantitative analysis of the following components of natural gas: helium hydrogen argon oxygen nitrogen carbon dioxide saturated hydrocarbons from C~ to Cs hydrocarbon fractions from C6 upwards aromatic compounds as benzene and toluene The gas-chromatographic methods determine the components in the following ranges: oxygen: 0.001% (n/n) to 0.5 % (n/n) helium: 0.001% (n/n) to 0.5 % (n/n) hydrogen: 0.001% (n/n) to 0.5 % (n/n) argon: 0.001% (n/n) to 0.5 % (n/n) nitrogen: 0.001% (n/n) to 40 % (n/n) carbon dioxide: 0.001% (n/n) to 40 % (n/n) methane: 50 % (n/n) to 100 % (n/n) ethane: 0.02 % (n/n) to 15 % (n/n) propane: 0.001% (n/n) to 5 % (n/n) higher hydrocarbons: The method can measure hydrocarbon components from 10.6 (n/n) up to their maximum concentration, which is compatible with the requirement that the gas is free from hydrocarbon condensate at any pressure in the range 1 x 102 kPa to 7 x 103 kPa.

Natural gas - Extended analysis - Gas-chromatographic method (ISO 6975:1997); English version of DIN EN ISO 6975

DIN EN ISO 6974-6:2005 天然气.用气相色谱法测定规定了不确定度的组分.第6部分:用三个毛细管柱测定氢、氦、氧、氮、二氧化碳和C1到C8的烃类

The standard specifies a method for the determination of composition with defined uncertainty by capillary gas chromatography.

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C₁ to C₈ hydrocarbons using three capillary columns (ISO 6974-6:2

SY/T 6638-2005 天然气长输管道和地下储气库工程设计节能技术规范

本标准规定了天然气长输管道和地下储气库工程节能设计的技术要求。 本标准适用于天然气长输管道和地下储气库新建、改建和扩建工程。

Code for design of energy saving in gas transmission pipeline and underground gas storage

SY/T 6637-2005 输气管道系统能耗测试和计算方法

本标准规定了长距离输气管道系统能耗的测试和计算方法。 本标准适用于天然气长输管道中的压缩机机组效率和压气站的系统效率测试计算。

The method on energy consumption measurement and calculation for gas natural pipeline

NF X20-520*NF EN ISO 6570:2005 天然气.烃液潜在含量的测定.重量分析法

Natural gas - Determination of potential hydrocarbon liquid content - Gravimetric methods.

CSA B149.1-05-CAN/CSA-2005 天然气及丙烷的安装规范.第13版.附件1:2007年1月

General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for information about the CSA Standards Update Service.

Code d抜nstallation du gaz naturel et du propane Treizieme Edition; Suppl閙ent n?1: 01/2007

ASTM D7166-05 气体燃料中硫含量测定用联机总硫量分析仪的标准实施规程

On-line, at-line, in-line and other near-real time monitoring systems that measure fuel gas characteristics such as the total sulfur content are prevalent in the natural gas and fuel gas industries. The installation and operation of particular systems vary on the specific objectives, contractual obligations, process type, regulatory requirements, and internal performance requirements needed by the user. This protocol is intended to provide guidelines for standardized start-up procedures, operating procedures, and quality assurance practices for on-line, at-line, in-line and other near-real time total sulfur monitoring systems.1.1 This practice is for the determination of total sulfur from volatile sulfur-containing compounds in high methane or hydrogen content gaseous fuels using on-line/at-line instrumentation.1.2 The values stated in SI units are standard. Values stated in other units are for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Total Sulfur Analyzer Based On-line/At-line for Sulfur Content of Gaseous Fuels