GB/T 33440-2021 English PDFUS$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 33440-2021: General requirements for interchangeability of natural gas Status: Valid
Basic dataStandard ID: GB/T 33440-2021 (GB/T33440-2021)Description (Translated English): General requirements for interchangeability of natural gas Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: E24 Word Count Estimation: 6,652 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 33440-2021: General requirements for interchangeability of natural gas---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.General requirements for interchangeability of natural gas ICS 75:060 CCSE24 National Standards of People's Republic of China Replaces GB /Z 33440-2016 General requirements for natural gas interchangeability Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Natural gas interchangeability index requirements 2 5 Sampling and test methods 2 Appendix A (Informative) Natural Gas Interchangeable Box Example 3 forewordThis document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: This document replaces GB /Z 33440-2016 "General Requirements for Interchangeability of Natural Gas Entering Long-distance Pipeline Networks", and is consistent with GB /Z 33440-2016 In addition to editorial changes, the main technical changes are as follows: --- Changed the scope of the standard, deleted "entering the long-distance pipeline network", and deleted the content of safety tips (see Chapter 1,:2016 edition of Chapter 1); --- Changed the terms and definitions "high calorific value" and "Wobbe index", deleted "combustion reference conditions" (see 3:1, 3:2,:2016 edition 3:1, 3:2, 3:3); --- Changed the term and definition "Wobbe Index Volatility Range", and changed "Difference" to "Relative Deviation" (see 3:3, 3:4 of the:2016 edition); --- Changed the suggested range of Wobbe index, and changed the upper limit from 53:81MJ/m3 to 53:80MJ/m3 (see 4:1, Chapter 4 of the:2016 edition); --- Changed the regulations on the fluctuation range of the Wobbe index, from "should be ±5%" to "≤5%", and carried out the adjustment of the fluctuation range of the Wobbe index: Description (see 4:1, Chapter 4 of the:2016 edition); --- Deleted the index requirements for hydrogen sulfide, total sulfur and water dew point (see Chapter 4 of the:2016 edition); --- Added "Other technical indicators of natural gas shall be implemented according to GB 17820" (see 4:2); --- Deleted "The determination of the natural gas composition on which it is based shall be performed in accordance with GB/T 13610" (see 5:1 of the:2016 edition); --- Deleted the provisions on the determination methods of hydrogen sulfide, total sulfur, and water dew point (see 5:2, 5:3, and 5:4 of the:2016 edition): This document is proposed and managed by the National Natural Gas Standardization Technical Committee (SAC/TC244): This document is drafted by: Natural Gas Research Institute of Southwest Oil and Gas Field Branch of PetroChina Co:, Ltd:, PetroChina Co:, Ltd: Natural Gas Sales Branch, Sun Yat-Sen University, China National Petroleum Corporation Huabei Oilfield Branch, PetroChina Metrology Research Center of Natural Gas Branch of Chemical Industry Co:, Ltd:, CNOOC Gas & Power Group Co:, Ltd:, PetroChina Co:, Ltd: Western Pipeline Branch, China Municipal Engineering North China Design and Research Institute Co:, Ltd:, China Petrochemical Corporation Zhongyuan Oilfield Puguang Branch, CNOOC (China) Co:, Ltd:, China National Offshore Oil Corporation, CNPC International Pipeline Co:, Ltd: The main drafters of this document: Zhou Li, Chang Honggang, Wang Weijie, Sun Qi, Luo Qin, Guo Kaihua, Gao Wenxue, Zhang Pr, Du Shucheng, Han Jing, Mei Yonggui, Pei Quanbin, Li Yiyi, Wang Chengshuo, Cai Haohui, Wu Tao, Gong Teng, Cai Li, Chen Zhenghua, Zhou Daibing, Wang Huaqing, Xu Wenxiao, Ma Fan: The previous versions of the documents replaced by this document are as follows: ---First released in:2016 as GB /Z 33440-2016; ---This is the first revision: General requirements for natural gas interchangeability1 ScopeThis document specifies the requirements for the interchangeability of the replacement gas source/mixed gas source with the existing gas source: This document applies to conventional natural gas, coalbed methane, shale gas, coal-to-synthetic natural gas, and liquefied natural gas:2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document: GB/T 11062 Calculation method of calorific value, density, relative density and Wobbe index of natural gas GB/T 13609 Guidelines for Natural Gas Sampling GB 17820 Natural gas3 Terms and DefinitionsGB/T 11062 and the following terms and definitions apply to this document: 3:1 High calorific value grosscalorificvalue The heat released when a specified amount of gas is completely combusted with oxygen: When the combustion reaction occurs, the pressure p1 remains constant, and all combustion The temperature of the combustion product drops to the same temperature as the specified reactant temperature t1, except for the water generated in the combustion, all condensed into a liquid state at the temperature t1 In addition, all other combustion products are gaseous: Note: When the gas amount specified above is given in moles, the calorific value is expressed as (Hc)G(t1,p1); when the gas amount is given in mass units, the calorific value is expressed as (Hc)G(t1,p1); The quantity is expressed as (Hm)G(t1,p1); when the above-mentioned gas quantity is given in volume units, the calorific value is expressed as (Hv)G(t1,p1;t2,p2), which Among them, t2 and p2 are the temperature and pressure corresponding to the gas volume measurement reference conditions: [Source: GB/T 11062-2020, 3:1] 3:2 grossWobbeindex The upper volume calorific value under the specified reference conditions is divided by the square root of the relative density under the same reference conditions: [Source: GB/T 11062-2020, 3:5, with modifications] 3:3 Wobbe index fluctuation range thefluctuationrangeofWobbeindex In the Wobbe index change curve, the relative deviation of the peak (valley) value from the mean value Wr: 3:4 interchangeability The ability of one gas to substitute for another without affecting combustion performance: 3:5 interchangeablebox A plane coordinate system composed of vertical and horizontal coordinates, and a closed block diagram formed by specifying the range of relevant parameters in the coordinate system: Note: Appendix A gives an example diagram of a natural gas interchangeable box: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 33440-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 33440-2021_English as soon as possible, and keep you informed of the progress. 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