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GB/T 19559-2021 English PDF

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Q: Should I purchase the latest version GB/T 19559-2021?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 19559-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 19559-2021: Method of determining coalbed methane content
Status: Valid

GB/T 19559: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 19559-2021	359	Add to Cart	4 days	Method of determining coalbed methane content	Valid
GB/T 19559-2008	559	Add to Cart	3 days	Method of determining coalbed gas content	Obsolete
GB/T 19559-2004	639	Add to Cart	5 days	Method of determining coalbed methane content	Obsolete

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Basic data

Standard ID: GB/T 19559-2021 (GB/T19559-2021)
Description (Translated English): Method of determining coalbed methane content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D20
Word Count Estimation: 18,138
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 19559-2021: Method of determining coalbed methane content

---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.
Method of determining coalbed methane content ICS 73.040 CCSD20 National Standards of People's Republic of China Replace GB/T 19559-2008 Method for determination of coalbed methane content Released on 2021-08-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Instruments and equipment 1 5 Sample collection 3 6 Measurement method and process 4 7 Data processing 6 8 Results report 8 9 Quality Review 8 Appendix A (Informative) Original Record Form of Natural Desorption 10 Appendix B (Informative) Original Record Form of Residual Gas Determination 11 Appendix C (informative) Loss gas calculation diagram (direct method) 12 Appendix D (informative) Cumulative desorption curve of coalbed methane Figure 13 Appendix E (informative) Test results of coalbed methane content Table 14

Foreword

This 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" Drafting. This document replaces GB/T 19559-2008 "Method for the Determination of Coal Bed Methane Content". Compared with GB/T 19559-2008, except for editorial changes In addition, the main technical changes are as follows. a) The normative references have been changed (see Chapter 2, Chapter 2 of the.2008 edition); b) Added understanding of the schematic diagram of the suction tank (see 4.1); c) The requirements for closing the desorption tank in the natural desorption determination step are changed (see 6.1.1, 5.1.1 in the.2008 edition); d) The hose connection method in the gas sample collection step is changed (see 6.3.1, 5.3.1 of the.2008 edition); e) The minimum number of points required for the estimation of lost gas volume has been added (see 7.2.2); f) The requirement for deducting air in the calculation of gas composition has been added (see 7.4); g) The requirements for calculation of adsorption time have been changed (see 7.6, 6.6 of the.2008 edition); h) Part of the content in the quality review has been added (see 9.3.2). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China Coal Industry Association. This document is under the jurisdiction of the National Coal Standardization Technical Committee (SAC/TC42). This document was drafted by. China Coal Science and Industry Group Xi'an Research Institute Co., Ltd. The main drafters of this document. Zhang Peihe, Jiang Wenping, Li Xiaoyan, Du Xinfeng, Song Xiaozhong, Tian Xinjuan, Liu Nana, Li Lin. This document was first published in.2004, revised for the first time in.2008, and this is the second revision. Method for determination of coalbed methane content

1 Scope

This document specifies the method for determining the CBM content of coal core samples. This document is applicable to the determination of coalbed methane content in bituminous coal and anthracite coal core samples obtained in the exploration and development of coal and coalbed methane, lignite coal cores The determination of the sample's coalbed methane content is carried out by reference.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 13610 Composition Analysis of Natural Gas Gas Chromatography

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Equipment

4.1 Desorption tank. As shown in Figure 1, the desorption tank is cylindrical, with a height of more than 30 cm, a volume of more than 1000 cm3, and a pressure of 0.3 MPa. Tightness. Indexing serial number description. 1---tank body; 2---can lid; 3---Air valve; 4---Pressure gauge. Figure 1 Schematic diagram of desorption tank ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 19559-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 19559-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 19559-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 19559-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 19559-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 19559-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.