GB/T 39359-2020 English PDF

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GB/T 39359-2020: (Integrating sphere method for measuring suspension liquid-solid photocatalytic hydrogen production reaction)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39359-2020	279	Add to Cart	3 days	(Integrating sphere method for measuring suspension liquid-solid photocatalytic hydrogen production reaction)	Valid

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Basic data

Standard ID: GB/T 39359-2020 (GB/T39359-2020)
Description (Translated English): (Integrating sphere method for measuring suspension liquid-solid photocatalytic hydrogen production reaction)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F19
Word Count Estimation: 15,118
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 39359-2020: (Integrating sphere method for measuring suspension liquid-solid photocatalytic hydrogen production reaction)

---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.
(Integrating sphere method for measuring suspension liquid-solid photocatalytic hydrogen production reaction) ICS 27.010 F19 National Standards of People's Republic of China Integrating sphere method for measuring suspension liquid-solid photocatalytic hydrogen production reaction 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Preface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Symbol 2 5 Test system 2 6 Measurement content 3 7 Test requirements 4 8 Data and calculation 4 Appendix A (informative appendix) Basic principles of optical integrating sphere 7 Appendix B (Normative Appendix) Integrating sphere photocatalytic hydrogen production reaction measurement system 9 Appendix C (informative appendix) "Integrating sphere method to measure the reaction efficiency of suspended liquid-solid photocatalytic hydrogen production" test case 11

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Hydrogen Energy Standardization Technical Committee (SAC/TC309). Drafting organizations of this standard. Xi'an Jiaotong University, Foshan Institute of Green Development and Innovation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Shanghai Jiaotong University, China Electronic Engineering Design Institute Co., Ltd., China National Institute of Standardization. The main drafters of this standard. Guo Liejin, Jing Dengwei, Bao Wei, Yang Yanmei, Lu Gongxuan, Shangguan Wenfeng, Zhou Xiangrong, Ai Bin, Liu Huan, Zhao Liang, Guan Xiangjiu, Su Jincheng, Liu Maochang, Shen Shaohua, Chen Yubin, Pan Ke, Liu Xiaomin. Integrating sphere method for measuring suspension liquid-solid photocatalytic hydrogen production reaction

1 Scope

This standard specifies the testing system, measurement content, and test for measuring the quantum efficiency of the suspension liquid-solid photocatalytic hydrogen production reaction system by the integrating sphere method. Requirements, data and calculation requirements. This standard applies to the accuracy of the spectral absorption characteristics and the quantum efficiency of hydrogen production in the liquid-solid suspension solar photocatalytic hydrogen production reaction system. measuring.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this file. For undated references, the latest version (including all amendments) applies to this document. GB/T 8981 Determination of trace hydrogen in gas gas chromatography GB/T 26179 Spectral radiometric measurement of light source Calculation of Energy Conversion Efficiency and Quantum Yield of GB/T 26915 Solar Photocatalytic Hydrogen Production System JC/T 185 Optical Quartz Glass

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Integrating sphere Hollow sphere for optical measurement. The inner surface of the ball is uniformly coated with a diffuse reflective medium with high reflectivity and no wavelength selectivity. The irradiance in either direction is equal. Note. Refer to Appendix A for the basic principle of optical integrating sphere. 3.2 Photocatalytic reaction medium The medium for the suspension photocatalytic reaction is generally pure water or aqueous solution. 3.3 Self-degradation hydrogen production effect In the process of photocatalytic hydrogen production, when no catalyst is added, the reaction medium reacts to produce hydrogen under incident light irradiation. 3.4 Mechanical catalytic hydrogen production effect The reaction medium and photocatalyst produce the effect of hydrogen through mechanical means such as stirring under the condition of no light. 3.5 Photothermal catalytic hydrogen production effect Select the spectral section other than the intrinsic absorption of the photocatalyst and the characteristic absorption of the reaction medium, and the incident light power and the similar incident light Irradiate under cloth characteristics, or use modulated incident light irradiation to produce the effect of hydrogen. ......

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