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GB/T 23844-2019: General method for the determination of sulphate in inorganic chemicals products
Status: Valid GB/T 23844: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23844-2019 | English | 199 |
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General method for the determination of sulphate in inorganic chemicals products
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GB/T 23844-2019
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| GB/T 23844-2009 | English | 319 |
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Inorganic chemicals for industrial use -- General method for the determination of sulphate -- Visible turbidimetric method
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GB/T 23844-2009
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PDF similar to GB/T 23844-2019
Basic data | Standard ID | GB/T 23844-2019 (GB/T23844-2019) | | Description (Translated English) | General method for the determination of sulphate in inorganic chemicals products | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G10 | | Classification of International Standard | 71.060.01 | | Word Count Estimation | 10,184 | | Date of Issue | 2019-10-18 | | Date of Implementation | 2020-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 23844-2019: General method for the determination of sulphate in inorganic chemicals products---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.
General method for the determination of sulphate in inorganic chemicals products
ICS 71.060.01
G10
National Standards of People's Republic of China
Replace GB/T 23844-2009
General method for determination of sulfate in inorganic chemical products
Published on.2019-10-18
2020-09-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 23844-2009 "General method for the determination of sulfate in inorganic chemical products, visual turbidimetry", and
Compared with GB/T 23844-2009, the main technical changes except editorial changes are as follows.
--- Revised the standard name, modified from "visual turbidimetric method for the determination of sulfate in inorganic chemical products" to "inorganic chemical production"
General method for determination of sulfate in products" (see standard name, standard name for.2009 edition);
--- Added "Spectrophotometry" and "Inductively Coupled Plasma Atomic Emission Spectrometry" (see Chapters 5 through 6);
--- Increased test conditions for inductively coupled plasma atomic emission spectrometry (see Appendix A).
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. Polyfluoropoly Chemical Co., Ltd., Longyan Lilian Group Co., Ltd., CNOOC Tianjin Chemical Research
Design Institute Co., Ltd., SDIC Xinjiang Lop Nur Potassium Salt Co., Ltd., Jiangxi Nuclear Industry Xingzhong New Material Co., Ltd., Zhejiang Tianshi Nano
Technology Co., Ltd., Sichuan Shuangqi Testing Technology Co., Ltd., Shenzhen Zhongrun Water Industry Technology Development Co., Ltd., Xiamen Lanshuiling
Environmental Protection Technology Co., Ltd., Weifang Menjie Chemical Co., Ltd., Zhejiang Shuizhiyin Testing Co., Ltd., National Inorganic Salt Products Quality Supervision and Inspection
center.
The main drafters of this standard. Shi Xiuhua, Ma Yanping, Ding Ling, Li Shoujiang, Ye Weihui, Tian Wei, Jiang Rui, Li Runsheng, Cai Meina, Xue Xujin,
Chen Xiaoli, Guo Haolong, Wang Yongqin, Shao Ruilin, Liu Quanjun, Yu Minghua, Gong Chuangzhou, An Xiaoying.
The previous versions of the standards replaced by this standard are.
---GB/T 23844-2009.
General method for determination of sulfate in inorganic chemical products
Warning - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions.
question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations. In this test method
Some of the reagents used are toxic or corrosive. Care should be taken during handling. If splashed on the skin, rinse immediately with water. In severe cases, immediately
Treatment; high pressure gas cylinders used in this test method shall be operated in accordance with the safety regulations of high pressure cylinders.
1 Scope
This standard specifies the principles, reagents or materials, equipment, test procedures and tests for the general method for the determination of sulfate in inorganic chemical products.
Data processing.
This standard applies to the determination of sulfate in inorganic chemical products.
Note. The range of visual turbidimetry is 0.4μg/mL~4.0μg/mL, and the spectrophotometric range is 1.0μg/mL~10.0μg/mL. Inductively coupled plasma
The range of the measurement by bulk emission spectroscopy was not less than 0.25 μg/mL.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682-2008 Analytical laboratory water specifications and test methods
HG/T 3696.2 Preparation of standard solutions, preparations and products for chemical analysis of chemical products - Part 2
Liquid preparation
Preparation of standard solutions, preparations and products for chemical analysis - Part 3. Preparations and preparations
Preparation
3 General regulations
The reagents and water used in this standard, unless otherwise specified, should be analytically pure or analytically pure and in accordance with GB/T 6682-
The provisions of the third-grade water in.2008. Standard solutions, preparations and products for the determination of impurities required in the test, when no other requirements are specified,
Prepared by HG/T 3696.2 and HG/T 3696.3.
4 visual turbidimetry
4.1 Principle
In the hydrochloric acid medium, strontium ions and sulfate ions form insoluble barium sulfate, and when the sulfate ion content is low, within a certain period of time
Barium sulphate is in suspension, the solution is turbid, and the turbidity formed by the sulphate is determined by visual turbidity and the standard comparison solution.
4.2 Reagents or materials
4.2.1 Hydrochloric acid solution. 1 2.
4.2.2 Potassium Sulfate Ethanol Solution. 0.2 g/L, 0.02 g of potassium sulfate was dissolved in 100 mL of 30% ethanol solution.
4.2.3 Barium chloride solution. 250g/L.
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