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GB/T 38685-2020: Determination of sulphuric acid mist in tail gas for sulphuric acid industry
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 38685-2020 | English | 129 |
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Determination of sulphuric acid mist in tail gas for sulphuric acid industry
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GB/T 38685-2020
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Basic data | Standard ID | GB/T 38685-2020 (GB/T38685-2020) | | Description (Translated English) | Determination of sulphuric acid mist in tail gas for sulphuric acid industry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Z60 | | Classification of International Standard | 71.020 | | Word Count Estimation | 7,739 | | Date of Issue | 2020-03-31 | | Date of Implementation | 2021-02-01 | | Quoted Standard | GB/T 601; GB/T 603; GB/T 6682; GB/T 16157 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the determination method of sulfuric acid mist in the exhaust gas of sulfuric acid industry. This standard is applicable to the determination of sulfuric acid mist in the exhaust gas discharged from fixed pollution sources of sulfuric acid production enterprises. | GB/T 38685-2020: Determination of sulphuric acid mist in tail gas for sulphuric acid industry---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.
Determination of sulphuric acid mist in tail gas for sulphuric acid industry
ICS 71.020
Z60
National Standards of People's Republic of China
Determination method of sulfuric acid mist in tail gas of sulfuric acid industry
2020-03-31 release
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 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. Sinopec Nanjing Chemical Research Institute Co., Ltd., China Sulfuric Acid Industry Association, China Petrochemical Group Nanjing Chemical Industry
Industry Co., Ltd., Tongling Nonferrous Metals Group Co., Ltd., Yunnan Yuntian Petrochemical Co., Ltd., Yunnan Yuntianhua Co., Ltd., Wei
Dayton (China) Chemical Co., Ltd., Tongling Huaxing Chemical Co., Ltd., Anhui Sister Fertilizer Co., Ltd., Guangxi Jinchuan You
Nonferrous Metals Co., Ltd., Zhejiang Juhua Co., Ltd. sulfuric acid plant.
The main drafters of this standard. Li Zhongyu, Li Yanrong, Li Chong, Xu Xiaoqun, Zuo Yongwei, Xu Hongbi, Zhang Yinghu, Pan Mujun, Zhang Jian, Wu Zhugang,
Zhang Junjie, Zheng Xuegen, Wu Bingzhi, Feng Junting, Na Zhihui.
Determination method of sulfuric acid mist in tail gas of sulfuric acid industry
Warning --- Persons using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible safety issues
question. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the conditions prescribed by the relevant national regulations.
1 Scope
This standard specifies the method for the determination of sulfuric acid mist in exhaust gas from sulfuric acid industry.
This standard is applicable to the determination of sulfuric acid mist in exhaust gas emitted from stationary pollution sources of sulfuric acid production enterprises.
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.
Preparation of GB/T 601 chemical reagent standard titration solution
GB/T 603 Preparation of preparations and products used in chemical reagent test methods
GB/T 6682 Analysis laboratory specifications and test methods
GB/T 16157 Determination of particulate matter in exhaust gas from stationary sources and sampling method of gaseous pollutants
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Sulphuricacidmist
Sulfuric acid production enterprises fixed sources of pollution discharge small sulfuric acid droplets and sulfur trioxide in the tail gas.
4 Principle
Use glass fiber filter cartridges or quartz fiber filter cartridges to connect the absorption bottles of isopropyl alcohol solution in series to collect the sulfur in the tail gas discharged from stationary pollution sources
Acid mist. The sampling filter cartridge captures small droplets of sulfuric acid, and the sulfuric acid content is determined by acid-base titration, which is converted to sulfuric acid mist content ρ1;
The isopropyl alcohol solution captures sulfur trioxide gas and fine droplets that penetrate the filter cartridge, using the thorium reagent as an indicator, and titrating the solution with a standard barium perchlorate titration solution
Determine the generated sulfate radicals and calculate the sulfuric acid mist content ρ2 in the absorption liquid; add the sulfuric acid mist content in the sampling filter cartridge and the isopropyl alcohol absorption liquid,
Calculate the sulfuric acid mist content in the exhaust gas (ρ = ρ1 ρ2).
5 General provisions
The reagents and water used in the test refer to analytically pure reagents and tertiary water specified in GB/T 6682 when no requirements are indicated.
The standard titration solutions, preparations and products used are prepared according to the provisions of GB/T 601 and GB/T 603 unless other requirements are indicated.
6 Reagents or materials
6.1 Isopropyl alcohol. pure grade. Analysts need to make the quality of isopropyl alcohol meet the following requirements before use. take 10mL isopropyl alcohol, add 10mL
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