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GB/T 39298-2020: Reclaimed water quality. Determination of benzene homologues. Gas chromatography
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| GB/T 39298-2020 | English | 149 |
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Reclaimed water quality. Determination of benzene homologues. Gas chromatography
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GB/T 39298-2020
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Basic data | Standard ID | GB/T 39298-2020 (GB/T39298-2020) | | Description (Translated English) | Reclaimed water quality. Determination of benzene homologues. Gas chromatography | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G76 | | Classification of International Standard | 13.060.50; 71.040.40 | | Word Count Estimation | 8,892 | | Date of Issue | 2020-11-19 | | Date of Implementation | 2021-10-01 | | Quoted Standard | GB/T 5750.2; GB/T 6682; GB/T 14424 | | Regulation (derived from) | National Standard Announcement No. 26 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the determination method of benzene series in reclaimed water-gas chromatography. This standard is applicable to the determination of benzene, toluene, ethylbenzene, o-xylene, meta-xylene, p-xylene, styrene and cumene in the range of 0.5ug/L-100ug/L. This standard is also applicable to the determination of benzene series content in surface water, industrial water and domestic water. | GB/T 39298-2020: Reclaimed water quality. Determination of benzene homologues. Gas chromatography---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.
Reclaimed water quality - Determination of benzene homologues - Gas chromatography
ICS 13.060.50;71.040.40
G76
National Standards of People's Republic of China
Determination of Benzene Series in Reclaimed Water Quality
Gas chromatography
2020-11-19 released
2021-10-01 implementation
State Administration for Market Regulation
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 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).
Drafting organizations of this standard. Nanjing University, China Testing and Certification Group Co., Ltd., Yixing Environmental Protection Research Institute of Nanjing University, Jiangsu Zhongyi
Jinda Analytical Testing Co., Ltd., China Inspection Group Physical and Chemical Testing Co., Ltd., CNOOC Tianjin Chemical Research and Design Institute Co., Ltd., Dongguan Polytechnic
College, Zhejiang Shuizhiyin Testing Co., Ltd., Shijiazhuang Geyuan Environmental Protection Technology Co., Ltd., Tianjin Zhengda Technology Co., Ltd.
The main drafters of this standard. Ren Hongqiang, Liu Wenqiu, Xu Ke, Zhang Xuxiang, Yu Liangmin, Wang Yan, Niu Junfeng, Zhu Chunlian, Geng Jinju, Li Yongguang,
Wang Qing, Zeng Chao, Shao Hongqian.
Determination of Benzene Series in Reclaimed Water Quality
Gas chromatography
1 Scope
This standard specifies the determination method of benzene series in reclaimed water-gas chromatography.
This standard applies to the contents of eight benzene series such as benzene, toluene, ethylbenzene, o-xylene, meta-xylene, p-xylene, styrene and cumene in reclaimed water
For the measurement in the range of 0.5μg/L~100μg/L. This standard is also applicable to the determination of benzene series content in surface water, industrial water and domestic water.
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 article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 5750.2 Standard Test Method for Drinking Water Collection and Storage
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 14424 Determination of residual chlorine in industrial circulating cooling water
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Benzene series
Benzene and its derivatives.
Note. Benzene series include benzene, toluene, ethylbenzene, cumene, styrene and eight compounds of o-xylene, m-xylene and p-xylene.
3.2
Full program blank
Fill the sample bottle with water, seal it and bring it to the site, open and seal it at the same time as the sample bottle for sampling, and transport it back to the laboratory as per the sample
The operation steps are processed and determined to check whether the whole process from sample collection to analysis is contaminated.
4 Principle
The benzene series in the sample is purged by high-purity nitrogen and adsorbed in the trapping tube. The trapping tube is heated and blown back with high-purity nitrogen to be thermally desorbed.
After the incoming components are separated by gas chromatography, they are detected with a hydrogen flame ionization detector (FID) to qualitatively use the retention time.
Quantitatively calculate the content of each component based on the peak height or peak area.
5 Reagents or materials
Warning---The strong acid used in this standard is corrosive. Avoid inhalation or contact with the skin when using it. Splash on the body and use a large amount immediately
Rinse with water, and seek medical attention immediately in severe cases. Organic reagents have strong volatility and toxicity, are harmful to human health and flammable.
Carry out in a wind hood to prevent contact with open flames, and wear protective equipment as required. When inhaling, you should quickly evacuate the scene to a place with fresh air
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