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GB/T 19560-2025 English PDF

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US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 19560-2025: Experimental method of high-pressure isothermal adsorption to coal
Status: Valid

GB/T 19560: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 19560-2025	279	Add to Cart	3 days	Experimental method of high-pressure isothermal adsorption to coal	Valid
GB/T 19560-2008	209	Add to Cart	3 days	Experimental method of high-pressure isothermal adsorption to coal	Valid
GB/T 19560-2004	359	Add to Cart	3 days	Experimental method of high-pressure adsorption isothermal to coal capacity method	Obsolete

Similar standards

GB/T 51033 GB/T 50082 GB/T 19560

Basic data

Standard ID: GB/T 19560-2025 (GB/T19560-2025)
Description (Translated English): Experimental method of high-pressure isothermal adsorption to coal
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D21
Classification of International Standard: 73.040
Word Count Estimation: 14,12
Date of Issue: 2025-08-01
Date of Implementation: 2025-11-01
Older Standard (superseded by this standard): GB/T 19560-2008
Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China

GB/T 19560-2025: Experimental method of high-pressure isothermal adsorption to coal

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT19560-2025
ICS 73.040 CCSD21 National Standard of the People's Republic of China Replaces GB/T 19560-2008 High-pressure isothermal adsorption test method for coal Released on August 1, 2025 Implementation on November 1, 2025 State Administration for Market Regulation The National Standardization Administration issued

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Method Summary 1 5 Instruments and Equipment 1 5.1 Equilibrium moisture determination 1 5.2 Isothermal adsorption device 1 6 Reagents or materials 2 7 Sample preparation and equilibrium moisture determination 2 7.1 Sample Preparation 2 7.2 Industrial Analysis 2 7.3 Equilibrium moisture determination 3 8 Test Step 3 8.1 Sample loading cylinder 3 8.2 Airtightness check 3 8.3 Free space volume determination 3 8.4 Isothermal adsorption test 4 9 Data Processing 4 9.1 Calculation of Coal Sample Volume and Free Space Volume 4 9.2 Calculation of adsorption capacity at each pressure point 5 9.3 Calculation of Langmuir Volume (VL) and Langmuir Pressure (pL) 6 9.4 Drawing of Isothermal Adsorption Curves 6 10 Precision 6 10.1 Repeatability limit 6 10.2 Reproducibility limit 6 11 Test Report 6 11.1 Appendix 6 11.2 Test results 6 Appendix A (Normative) Isothermal Adsorption Test Report 7 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 19560-2008 "High-pressure isothermal adsorption test method for coal". In addition to structural adjustments and editorial changes, the main technical changes are as follows. a) Added schematic diagram of isothermal adsorption equipment (see 5.2); b) Added requirements for reagents (see 6.2); c) The equilibrium moisture calculation formula (1) has been changed (see 7.3.3, 6.3.3 of the.2008 edition); d) Added some chapter titles (see 8.3.4, 8.3.5, 8.4.6, and 11.1). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility 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 Technology and Engineering Xi'an Research Institute (Group) Co., Ltd., Xi'an Coal Science and Technology Testing Technology Co., Ltd., CNOOC Energy Development Co., Ltd., Yi'an Blue Flame Coal and Coalbed Methane Co-mining Technology Co., Ltd., and China United Coalbed Methane Co., Ltd. The main drafters of this document are. Lin Peiyao, Zheng Yuzhu, Yang Xinhui, Zhang Qingling, Li Yuhui, Tian Xinjuan, Ma Litao, Wu Jie, Yao Jinfang, Chen Zhaoying and Meng Shangzhi. This document was first published in.2004, revised for the first time in.2008, and this is the second revision. High-pressure isothermal adsorption test method for coal

1 Scope

This document describes the volumetric high-pressure isothermal adsorption test method for coal. This document is applicable to the determination of the adsorption capacity of bituminous coal and anthracite for methane, carbon dioxide and other gases. The determination of the adsorption capacity of the body was carried out according to the reference.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 212 Industrial analysis methods for coal GB/T 474 Coal sample preparation method GB/T 31537 Coalbed Methane (Coal Mine Gas) Terminology

3 Terms and Definitions

The terms and definitions defined in GB/T 31537 apply to this document.

4 Method Summary

The coal sample with a certain particle size that reaches equilibrium moisture is placed in a sealed container and its particle size is measured under the same temperature and different pressure conditions. The volume of test gases such as methane and carbon dioxide adsorbed at adsorption equilibrium; according to the Langmuir monolayer adsorption theory, the volume of test gases such as methane and carbon dioxide adsorbed at adsorption equilibrium is calculated theoretically. Calculate the adsorption constants [Langemuir volume (VL), Langmuir pressure (VL)] that characterize the adsorption characteristics of coal for test gases such as methane and carbon dioxide. (pL)] and isothermal adsorption curves.

5 Instruments and Equipment

5.1 Equilibrium moisture determination 5.1.1 Dryer. 5.1.2 Balance. sensitivity 0.1 mg. 5.1.3 Constant temperature system. 5.2 Isothermal adsorption device The schematic diagram of the isothermal adsorption equipment is shown in Figure 1. ---Sample cylinder; ---Reference cylinder; --- Constant temperature control system. sensitivity 0.3℃; ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 19560-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 19560-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 19560-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 19560-2025_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 19560-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 19560-2025 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.