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GB/T 23762-2020: Test method for water purification performance of photocatalytic materials
Status: Valid GB/T 23762: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23762-2020 | English | 189 |
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Test method for water purification performance of photocatalytic materials
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GB/T 23762-2020
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| GB/T 23762-2009 | English | 479 |
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Water purification system photocatalytic materials testing methods
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GB/T 23762-2009
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PDF similar to GB/T 23762-2020
Basic data | Standard ID | GB/T 23762-2020 (GB/T23762-2020) | | Description (Translated English) | Test method for water purification performance of photocatalytic materials | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G10 | | Classification of International Standard | 71.060.01 | | Word Count Estimation | 10,155 | | Date of Issue | 2020-03-06 | | Date of Implementation | 2021-02-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 23762-2020: Test method for water purification performance of photocatalytic materials---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.
(Test method for purification performance of photocatalytic material aqueous solution)
ICS 71.060.01
G10
National Standards of People's Republic of China
Replace GB/T 23762-2009
Test method for purification performance of aqueous solution of photocatalytic materials
Released on 2020-03-06
2021-02-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 23762-2009 "Test Method for Purification of Photocatalytic Material Aqueous System". This standard and GB/T 23762-
Compared with.2009, the main technical changes except for editorial changes are as follows.
--- Modified the scope of application of the standard (see Chapter 1, Chapter 1 of the.2009 edition);
--- Deleted the terms "photocatalyst" and "photocatalytic degradation rate" (see 3.2 and 3.6 of the.2009 edition);
--- Modify the test temperature requirements (see 5.1, 9.1 of the.2009 edition);
--- Modified the pollution marker, using phenol instead of methylene blue as a pollution marker (see 5.2, 9.2 in the.2009 edition);
--- Modified the range of visible light irradiance (see 5.3, 9.4 of the.2009 edition);
--- Revised the content of reagents or materials (see Chapter 7, Chapter 7 of the.2009 edition);
--- Modified the detection instrument and used high-performance liquid chromatography to determine the concentration of phenol (see 8.1, 8.1 in the.2009 edition);
--- Modified the power of ultraviolet light source and visible light source (see 8.3, 8.3 of.2009 edition);
--- Modified the name of "Particulate and Thin Film Photocatalytic Reactor" and the size of the catalytic reaction bed frame
8.4.2);
--- Modify the size of "film or sheet samples" (see 9.3, 9.5.3 of.2009 edition);
--- Modified the time of sample pretreatment, and increased the requirement of sample preservation time (see 10.1, 9.6 of.2009 edition);
--- Modify the standard curve drawing steps (see 10.2,.2009 version 10.1);
--- Revised the speed of centrifugal separation (see 10.4.1 and 10.5.1,.2009 version 10.3.1 and 10.4.1);
--- Increased the provisions of the visible light source irradiation time (see 10.5.1 and 10.5.2);
--- Modified the measurement procedure of photocatalytic stability (see 10.6,.2009 version 10.5);
--- Modified the unit of photocatalytic degradation (see 11.1, 11.1 in.2009 edition).
This standard was proposed by the China Petroleum and Chemical Industry Federation.
This standard is under the jurisdiction of the National Chemical Standardization Technical Committee (SAC/TC63).
This standard was drafted by. Beijing Weikang Environmental Protection Technology Co., Ltd., Institute of Physical and Chemical Technology, Chinese Academy of Sciences, Tsinghua University, Guangdong Weisheng
Material Analysis and Testing Center, Beijing Indoor and Car Environment Purification Association.
The main drafters of this standard. Zhu Yongfa, Zong Ruilong, Liu Wenxiu, Guo Fengxin, Xie Xiaobao, Zhi Jinfang, He Mingxing, Li Xinjun, Cao Wenbin,
Park Lingyu, Tang Xiaoli, Gao Yuehong, Cao Wenwei.
The previous versions of the standard replaced by this standard are as follows.
--- GB/T 23762-2009.
Test method for purification performance of aqueous solution of photocatalytic materials
1 Scope
This standard specifies the principles, test conditions, general provisions, reagents or materials, and instruments of the test method for the purification performance of aqueous solutions of photocatalytic materials
Equipment, samples, test procedures, test data processing and test reports.
This standard applies to the test of the purification performance of photocatalytic materials with the purification performance of aqueous solution.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document.
GB/T 602 Preparation of standard solution for determination of impurities in chemical reagents
GB/T 6682 Analysis laboratory specifications and test methods
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Photocatalytic materials for water purification
Under the excitation of a certain wavelength light source, it can produce a photocatalytic effect and is suitable for the purification of aqueous solutions.
Note. It can be a non-supported photocatalytic material or a photocatalytic material supported on a fixed carrier.
3.2
Unit removal amount
The amount of photocatalytic material per unit mass or unit area that removes pollution markers per unit time.
Note. The unit is milligrams per minute gram [mg/(min · g)] or milligrams per minute square centimeter [mg/(min · cm2)].
3.3
Removal rate
At the end of the reaction within the specified time, the ratio of the removal amount of the pollution marker to its initial amount is expressed as a percentage.
3.4
Photocatalytic degradation
The difference between the unit removal amount of the pollution marker under light conditions and the unit removal amount under no light conditions.
Note. The unit is milligrams per minute gram [mg/(min · g)] or milligrams per minute square centimeter [mg/(min · cm2)].
3.5
Stability of photocatalytic materials for water solution purification
Photocatalytic stability
After a period of continuous photocatalytic purification reaction, the photocatalytic material still maintains the performance of degradability. After continuous photocatalytic purification
The ratio of the measured amount of photocatalytic degradation to the measured amount of photocatalytic degradation in the first standard photocatalytic degradation test is expressed as a percentage
Said.
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