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GB/T 47363-2026Biochemical methane potential test method (English PDF)

物料甲烷潜力测试方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 31, 2026

Implementation date

October 1, 2026

Scope

GB/T 47363-2026 is the English-translated version of 物料甲烷潜力测试方法.

GB/T 47363-2026 is the Chinese standard "Biochemical methane potential test method". Its scope clause reads: This document describes a test method for assessing the methane potential of materials using batch anaerobic fermentation under laboratory conditions, for determining organic...

The maximum methane production of the material and its anaerobic degradation kinetic parameters.

This document applies to the determination of maximum methanogenic yield and anaerobic degradation kinetics analysis of the following organic materials. ---Agricultural and forestry waste, energy crops; ---Sludge and organic solid waste; --- Waste and wastewater from agricultural and food processing industries; ---Livestock and poultry manure and wastewater.

This document does not apply to materials that exhibit inhibitory effects on anaerobic microorganisms under experimental conditions. Its clauses include terms and definitions.

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Document preview — GB/T 47363-2026

National Standard of the People's Republic of China

ICS: 27.190
Classification: F 13

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
Introduction
1.Scope
2 Normative References
3.Terms and Definitions
4.Principle
5.Test Environment
6.Reagents
6.1 Substrate
6.2 Control Sample
6.3 Culture medium
6.4 Acidic gas absorbent
7.Instruments and Equipment
7.1 General Provisions
7.2 Reactor
7.3 Acidic Gas Absorption Device
7.4 Gas Volume Measurement System
7.5 Gas composition analyzer (optional)
7.6 Other instruments or equipment (optional)
8.Program
8.1 Substrate Preparation
8.2 Inoculum Preparation
8.3 Start testing
8.4 Purge
8.5 Temperature Setting
8.6 Stirring
8.7 Testing and Monitoring
8.8 Gas Volume Measurement
8.9 Test Cycle
9.Calculation and Result Expression 8.
9.1 Calculation of methane potential from raw materials
9.2 Expression and Interpretation of Results
9.3 Dynamic Modeling Methods
10.Validity of the results 9.
11 Test Report
Appendix A (Normative) Substrate Preparation and Pretreatment
Appendix B (Informative) Methods for preparing culture media
Appendix C (Informative) Exemplary Formulation of Acidic Gas Absorbents
Appendix D (Informative) Gas Volume Measurement System
Appendix E (Informative) Volume Calculation Method under Automated Gas Production Metering Conditions
Appendix F (Informative) Methods for assessing the synergistic effect of substrate co-digestion
Appendix G (Informative) Requirements and Example Format for Recording Experimental Data
Appendix H (Informative) Kinetic Modeling Methods for Anaerobic Batch Testing
Appendix I (Informative) Example 28 of Typical Gas Production Curves
References

1 Scope

This document describes a test method for assessing the methane potential of materials using batch anaerobic fermentation under laboratory conditions, for determining organic...

The maximum methane production of the material and its anaerobic degradation kinetic parameters.

This document applies to the determination of maximum methanogenic yield and anaerobic degradation kinetics analysis of the following organic materials.

---Agricultural and forestry waste, energy crops;

---Sludge and organic solid waste;

--- Waste and wastewater from agricultural and food processing industries;

---Livestock and poultry manure and wastewater.

This document does not apply to materials that exhibit inhibitory effects on anaerobic microorganisms under experimental conditions.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 38737-2020 Determination of final anaerobic biodegradability of materials in controlled plastic sludge digestion systems by measuring release

Biogas Method

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1

The maximum methane gas yield per unit of organic material under anaerobic digestion conditions, obtained through batch experimental testing.

Note. The methane potential of a material is expressed as the number of milliliters of methane gas released per gram of organic material under standard conditions (mLg^-^1).

3.2 substrate

In anaerobic digestion, the material serves as a carbon and energy source for microorganisms.

Note. The substrates mainly include readily biodegradable organic waste, which is converted into methane and carbon dioxide through microbial metabolism under suitable conditions.

3.3 Inoculum

A mixture of biogas slurry or sludge rich in microorganisms suitable for anaerobic digestion and methanogenic microorganisms is added during the start-up or operation of the digestion system.

Providing a suitable microbial community accelerates the anaerobic digestion process.

3.4 biogas

Combustible gases produced by the microbial decomposition of organic matter under anaerobic conditions, whose main components are methane and carbon dioxide, and usually also contain...

Small amounts of impurities such as hydrogen, hydrogen sulfide, and ammonia.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 34 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 38737-2020Plastics - Determination of the ultimate anaerobic biodegradation of plastic materials in controlled slurry digestion systems - Method by measurement of biogas production

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