75.060 天然气 标准查询与下载
共找到 961 条与 天然气 相关的标准，共 65 页
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 and temperature 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 (ISO 20765-1:2005); German version EN ISO 20765-1:2018
- ICS
- 75.060
- CCS
- 发布
- 2018-12-00
- 实施
This document describes the precision that can be expected from the gas chromatographic method that is set up in accordance with ISO 6974-1. The stated precision provides values for the magnitude of variability that can be expected between test results when the method described in ISO 6974-1 is applied in one or more competent laboratories. This document also gives guidance on the assessment of bias.
Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3: Precision and bias (ISO 6974-3:2018)
- ICS
- 75.060
- CCS
- 发布
- 2018-11-28
- 实施
- 2019-02-28
This document provides the means for energy determination of natural gas by measurement or by calculation, and describes the related techniques and measures that are necessary to take. The calculation of thermal energy is based on the separate measurement of the quantity, either by mass or by volume, of gas transferred and its measured or calculated calorific value. The general means of calculating uncertainties are also given. Only systems currently in use are described. NOTE Use of such systems in commercial or official trade can require the approval of national authorization agencies, and compliance with legal regulations is required. This document applies to any gas-measuring station from domestic to very large high-pressure transmission. New techniques are not excluded, provided their proven performance is equivalent to, or better than, that of those techniques referred to in this document. Gas-measuring systems are not the subject of this document.
Natural gas — Energy determination
- ICS
- 75.060
- CCS
- 发布
- 2018-11-08
- 实施
What is ISO 20676 - laser absorption spectroscopy for H2S in natural gas about? Laser absorption spectroscopy is an absorption spectroscopic method that employs a laser as the light source and measures the chemical concentration based on the detection of a variation of laser beam intensity after transmission along the optical path. ISO 20676 is a safety standard on natural gas. ISO 20676 specifies a method for the determination of hydrogen sulfide content in the working field natural gas of upstream area by laser absorption spectroscopy . The analyt...
Natural gas. Upstream area. Determination of hydrogen sulfide content by laser absorption spectroscopy
- ICS
- 75.060
- CCS
- 发布
- 2018-10-31
- 实施
- 2018-10-31
This document specifies a method for the determination of hydrogen sulfide content in working field natural gas of upstream area by laser absorption spectroscopy. The analytical range expressed as mole fraction is 10 × 10−6 to 20 %. The analytical range can be expanded to higher content with specific instrument requirements.
Natural gas - Upstream area - Determination of hydrogen sulfide content by laser absorption spectroscopy
- ICS
- 75.060
- CCS
- 发布
- 2018-10-00
- 实施
This document describes the precision that can be expected from the gas chromatographic method that is set up in accordance with ISO 6974-1. The stated precision provides values for the magnitude of variability that can be expected between test results when the method described in ISO 6974-1 is applied in one or more competent laboratories. This document also gives guidance on the assessment of bias.
Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 3: Precision and bias
- ICS
- 75.060
- CCS
- E24
- 发布
- 2018-09-30
- 实施
- 2018-09-30
1.1 This test method covers the determination of the heating value of natural gases and similar gaseous mixtures within the range of composition shown in Table 1, and Table 2 that covers flare components but is not intended to limit the components to be measured in flare gases. 1.2 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Test Method for Heating Value of Gases in Natural Gas and Flare Gases Range by Stoichiometric Combustion
- ICS
- 75.060
- CCS
- 发布
- 2018-09-01
- 实施
本标准适用于汽油和柴油中氯含量的测定。 本标准适用于氯含量大于3 mg/kg的汽油和柴油
Determination of Chlorine Content in Gasoline and Diesel Oil by Microcoulometric Method
- ICS
- 75.060
- CCS
- E 24
- 发布
- 2018-06-14
- 实施
- 2018-09-01
Natural gas — Online gas chromatograph for upstream area
- ICS
- 75.060
- CCS
- 发布
- 2018-05-08
- 实施
Natural gas — Online gas chromatograph for upstream area
- ICS
- 75.060
- CCS
- 发布
- 2018-05-08
- 实施
Natural gas — Online gas chromatograph for upstream area
- ICS
- 75.060
- CCS
- 发布
- 2018-05-08
- 实施
1.1 Purpose—This practice covers standardized techniques for actively collecting soil gas samples from the vadose zone beneath or near dwellings and other buildings. 1.2 Objectives—Objectives guiding the development of this practice are: (1) to synthesize and put in writing good commercial and customary practice for active soil gas sampling, (2) to provide an industry standard for soil gas sampling performed in support of vapor intrusion evaluations that is practical and reasonable. 1.3 This practice allows a variety of techniques to be used for collecting soil gas samples because different techniques may offer certain advantages for specific applications. Three techniques are presented: sampling at discrete depths, sampling over a small screened interval, and sampling using permanent vapor monitoring wells. 1.4 Some of the recommendations require knowledge of pressure differential and tracer gas concentration measurements. 1.5 The values stated in SI units shall be regarded as standard. Other units are shown for information only. 1.6 This practice does not address requirements of any local, regional, state, provincial, or national regulations or guidance, or both, with respect to soil gas sampling. Users are cautioned that local, regional, state, provincial, or national guidance may impose specific requirements that differ from those of this practice. 1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM practice is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “Standard” in the title means only that the document has been approved through the ASTM consensus process. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Practice for Active Soil Gas Sampling in the Vadose Zone for Vapor Intrusion Evaluations
- ICS
- 75.060
- CCS
- 发布
- 2018-02-15
- 实施
本标准规定了天然气分布式能源项目服务规范的术语和定义、基本要求、服务内容与要求、检测与评估要求。 本标准适用于从事天然气分布式能源系统项目服务活动的相关企业。
Natural gas distributed energy system project service specification
- ICS
- 75.060
- CCS
- F10/19
- 发布
- 2018-02-05
- 实施
- 2018-04-01
本标准适用于液化天然气(LNG)在生产、运输、销售时取样的方法。
Sampling Intermittent Method of Liquefied Natural Gas
- ICS
- 75.060
- CCS
- E24
- 发布
- 2018-01-12
- 实施
- 2018-02-01
本标准规定了液化天然气的要求、试验方法、质量评价、标志、储运、运输、交货和验收、安全与健康要求。 本标准适用于四川省内生产、销售的液化天然气的质量评价。
Liquefied natural gas quality evaluation standard
- ICS
- 75.060
- CCS
- E241
- 发布
- 2018-01-12
- 实施
- 2018-02-01
Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
- ICS
- 75.060
- CCS
- 发布
- 2017-12-29
- 实施
Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
- ICS
- 75.060
- CCS
- 发布
- 2017-12-29
- 实施
Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
- ICS
- 75.060
- CCS
- 发布
- 2017-12-29
- 实施
This method applies to the determination of total sulfur content in natural gas expressed as sulfur mass concentration ranging from 1 mg/m3 to 200 mg/m3. Natural gas with sulfur contents above 200 mg/m3 can be analysed after dilution with a suitable sulfur-free solvent.
Natural gas - Determination of sulfur compounds - Determination of total sulfur content by ultraviolet fluorescence method
- ICS
- 75.060
- CCS
- 发布
- 2017-10-27
- 实施
