E24 天然气 标准查询与下载

ANSI/UL 147-2013 燃气喷灯用手持式火炬的安全性标准

Standard for Safety for Hand-Held Torches for Fuel Gases

ANSI/NFPA 59A-2013 液化天然气(LNG)的生产、储存和搬运用标准

Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG)

EN ISO 13734:2013 天然气.作添味剂用的有机成分.要求和试验方法

Diese Internationale Norm legt Anforderungen und Prufverfahren fur organische Verbindungen fest, die sich fur die Odorierung von Erdgas und Erdgasaustauschgas der offentlichen Gasversorgung eignen und die im Folgenden als Odoriermittel bezeichnet werden.

Natural gas - Organic components used as odorants - Requirements and test methods

ISO 10723:2012 天然气.在线分析系统的性能评定

Natural gas - Performance evaluation for analytical systems

ISO 6974-1:2012/cor 1:2012 天然气.利用气相色谱法测定规定的不确定度的组分.第1部分:复合物的计算和一般准则.技术勘误表1

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition; Technical Corrigendum 1

DIN EN ISO 6974-1:2012 天然气.使用气相色谱法对规定的不确定度组分的测定.第1部分:通用导则和成分计算(ISO 6974-1-2012).德文版本EN ISO 6974-1-2012

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition (ISO 6974-1:2012); German version EN ISO 6974-1:2012

DIN EN ISO 6974-2:2012 天然气.用气相色谱法测定规定的不确定度的组分.第2部分:测量系统的特性和数据处理的统计(ISO 6974-2-2012).德文版本EN ISO 6974-2-2012

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations (ISO 6974-2:2012); German version EN ISO 6974-2:2012

BS EN ISO 6974-2:2012 天然气. 使用气相色谱法对规定的不确定度组分的测定. 不确定度计算

Natural gas. Determination of composition and associated uncertainty by gas chromatography. Uncertainty calculations

BS EN ISO 6974-1:2012 天然气. 使用气相色谱法对规定的不确定度组分的测定. 通用导则和成分计算

Natural gas. Determination of composition and associated uncertainty by gas chromatography. General guidelines and calculation of composition

DIN 51894:2012 气体分析.燃料气体/天然气和其他气体混合物用气相色谱法

Gas analysis - Gas chromatographic method for fuel gases/natural gas and other gas mixtures

SY/T 6899-2012 天然气水露点的测定 电容法

本标准规定了用电容法测定天然气水露点的方法。本标准适用于经处理的管输天然气及车用压缩天然气在大气压下水露点的测定。测定范围为-60℃~0℃。

Determination of the water dew point of natural gas.The capacitance method

ISO 6974-1:2012 天然气.使用气相色谱法对规定的不确定度组分的测定.第1部分:通用导则和成分计算

This part of ISO 6974 gives methods for calculating component mole fractions of natural gas and specifies the data processing requirements for determining component mole fractions. This part of ISO 6974 provides for both single and multiple operation methods and either multi-point calibration or a performance evaluation of the analyser followed by single-point calibration. This part of ISO 6974 gives procedures for the calculation of the raw and processed (e.g. normalized) mole fractions, and their associated uncertainties, for all components. The procedures given in this part of ISO 6974 are applicable to the handling of data obtained from replicate or single analyses of a natural gas sample.

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition

ISO 6974-2:2012 天然气.用气相色谱法测定规定的不确定度的组分.第2部分:测量系统的特性和数据处理的统计

This part of ISO 6974 describes the process required to determine the uncertainty associated with the mole fraction for each component from a natural gas analysis in accordance with ISO 6974-1.

Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations

EN ISO 10723:2012 天然气.分析系统的性能评定

This International Standard specifies a method of determining whether an analytical system for natural gas analysis is fit for purpose. It can be used either a) to determine a range of gas compositions to which the method can be applied, using a specified calibration gas, while satisfying previously defined criteria for the maximum errors and uncertainties on the composition or property or both, or to evaluate the range of errors and uncertainties on the composition or property (calculable from composition) or both when analysing gases within a defined range of composition, using a specified calibration gas.It is assumed that a) for evaluations of the first type above, the analytical requirement has been clearly and unambiguously defined, in terms of the range of acceptable uncertainty on the composition, and, where appropriate,the uncertainty in physical properties calculated from these measurements, b) for applications of the second type above, the analytical requirement has been clearly and unambiguously defined, in terms of the range of composition to be measured and, where appropriate, the range of properties which may be calculated from these measurements, c) the analytical and calibration procedures have been fully described, and d) the analytical system is intended to be applied to gases having compositions which vary over ranges normally found in gas transmission and distribution systems.If the performance evaluation shows the system to be unsatisfactory in terms of the uncertainty on the component amount fraction or property, or shows limitations in the ranges of composition or property values measurable within the required uncertainty, then it is intended that the operating parameters, including a) the analytical requirement, b) the analytical procedure, c) the choice of equipment, d) the choice of calibration gas mixture, and e) the calculation procedure, be reviewed to assess where improvements can be obtained. Of these parameters, the choice of the calibration gas composition is likely to have the most significant influence.This International Standard is applicable to analytical systems which measure individual component amount fractions. For an application such as calorific value determination, the method will be typically gas chromatography, set up, as a minimum, for the measurement of nitrogen, carbon dioxide, individual hydrocarbons from C1 to C5 and a composite measurement representing all higher hydrocarbons of carbon number 6 and above. This allows for the calculation of calorific value and similar properties with acceptable accuracy. In addition, components such as H2S can be measured individually by specific measurement methods to which this evaluation approach can also be applied. Performance evaluation of an analytical system is intended to be performed following initial installation to ensure that errors associated with assumed response functions are fit for purpose.Thereafter, periodic performance evaluation is recommended, or whenever any critical component of the analytical system is adjusted or replaced. The appropriate interval between periodic performance evaluations will depend upon both how instrument responses vary with time and also how large an error may be tolerated. This first consideration is dependent upon instrument/operation; the second is dependent on the application. It is not appropriate, therefore, for this International Standard to offer specific recommendations on intervals between performance evaluations.

Natural gas - Performance evaluation for analytical systems

ASTM D5504-12 使用气相色谱和化学发光法测定天然气和气体燃料中硫化物含量的标准试验方法

Many sources of natural and petroleum gases contain sulfur compounds that are odorous, corrosive, and poisonous to catalysts used in gaseous fuel processing. Low ppm amounts of sulfur odorants are added to natural gas and LP gases for safety purposes. Some odorants are unstable and react to form compounds having lower odor thresholds. Quantitative analysis of these odorized gases ensures that odorant injection equipment is performing to specification. Although not intended for application to gases other than natural gas and related fuels, this test method has been successfully applied to fuel type gases including refinery, landfill, cogeneration, and sewage digester gas. Refinery, landfill, sewage digester and other related fuel type gases inherently contain volatile sulfur compounds that are subject to federal, state, or local control. The methane fraction of these fuel type gases are occasionally sold to distributors of natural gas. For these reasons, both regulatory agencies and production and distribution facilities may require the accurate determination of sulfur to satisfy regulatory, production or distribution requirements. Fuel gases are also used in energy production or are converted to new products using catalysts that are poisoned by excessive sulfur in the feed gas. Industry frequently requires measurement of sulfur in these fuel type gases to protect their catalyst investments. Analytical Methods8212;Gas chromatography (GC) is commonly used in the determination of fixed gas and organic composition of natural gas (Test Method D1945). Other standard ASTM methods for the analysis of sulfur in fuel gases include Test Methods D1072 and D4468 for total sulfur and Test Methods D4010 and D4884 for hydrogen sulfide.1.1 This test method is primarily for the determination of speciated volatile sulfur-containing compounds in high methane content gaseous fuels such as natural gas. It has been successfully applied to other types of gaseous samples including air, digester, landfill, and refinery fuel gas. The detection range for sulfur compounds, reported as picograms sulfur, is ten (10) to one million (1 000 000). This is equivalent to 0.01 to 1 000 mg/m3, based upon the analysis of a 1 cc sample. 1.2 The range of this test method may be extended to higher concentration by dilution or by selection of a smaller sample loop. Note 18212; Dilution will reduce method precision. 1.3 This test method does not purport to identify all sulfur species in a sample. Only compounds that are eluted through the selected column under the chromatographic conditions chosen are determined. The detector response to sulfur is equimolar for all sulfur compounds within the scope (1.1) of this test method. Thus, unidentified compounds are determined with equal precision to that of identified substances. Total sulfur content is determined from the total of individually quantified components. 1.4 The values stated in SI units are standard. The values stated in inch-pound units are for information only. 1.5 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 Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and Chemiluminescence

ASTM F2138-12 天然气设备用溢流阀的标准规范

1.1 This specification covers requirements and test methods for excess flow valves for use in thermoplastic natural gas piping systems. However, it is expected that excess flow valves manufactured to the requirements of this specification may also be used in other natural gas piping systems. 1.2 Excess flow valves covered by this specification are designed for insertion into components for natural gas systems such as pipe, tubing, or fittings in sizes from 1/2 CTS to 2 IPS. 1.3 The tests required by this specification are intended to determine the performance characteristics of an excess flow valve installed in a straight piece of pipe. An excess flow valve could possibly be installed in a straight piece of pipe, in a service tee outlet, as part of a mechanical coupling, or in other configurations. The performance characteristics of the excess flow valve may be significantly different for each installed configuration. Users should conduct their own tests to determine the installed performance characteristics or contact the EFV manufacturer for test data for the installed configuration. Additional guidance on selection and installation of excess flow valves is included in Appendix X1. 1.4 The tests required by this specification are not intended to be routine quality control tests. 1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.6 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 requirements prior to use.

Standard Specification for Excess Flow Valves for Natural Gas Service

ANSI Z223.1/NFPA 54-2012 国家燃油气体标准

This is the second public reivew regarding proposed revisions for the 2012 edition of the National Fuel Gas Code. This reveiw covers substantive revisions made as a result of comments received from the first public review. The National Fuel Gas Code provides installation requirements for gas piping, appliances, equipment and venting systems down-stream from the gas utility's gas meter or LP second stage regulator.

National Fuel Gas Code

JIS K 2301:2011 燃料气体和天然气.化学分析和测试方法

Fuel gases and natural gas -- Methods for chemical analysis and testing

DB34/T 1545-2011 汽车用压缩天然气气瓶安装监督检验规则

本规则适用于在环境温度 -40～60℃使用的、盛装公称工作压力不大于 20 MPa（表压，下同）的汽车用压缩天然气气瓶的安装监督检验

Regulation for supervision and inspection of installing compressed natural gas bottles for automotive vehicles

DB34/T 1548-2011 天然气泄漏处置导则

本标准适用于气态天然气输气管道、天然气加气站储气井、储气瓶组、天然气气瓶（含车用）、压缩天然气汽车（含长管拖车）、天然气门站、储备站等厂站的压力容器、调压站等工艺设备和设施发生泄漏时的应急处置。

Guidelines for Disposal of Compressed Natural Gas Leak