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YS/T 740-2010: Method for determination of caustic alkalinity in wastewater of alumina industry
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 740-2010 | English | 159 |
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Method for determination of caustic alkalinity in wastewater of alumina industry
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YS/T 740-2010
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Basic data | Standard ID | YS/T 740-2010 (YS/T740-2010) | | Description (Translated English) | Method for determination of caustic alkalinity in wastewater of alumina industry | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H12 | | Classification of International Standard | 13.030.20 | | Word Count Estimation | 6,677 | | Date of Issue | 2010-11-22 | | Date of Implementation | 2011-03-01 | | Quoted Standard | GB/T 601; GB/T 603; GB/T 12999 | | Regulation (derived from) | MIIT (2010) No. 126 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the alumina industrial wastewater caustic alkalinity method. This standard applies to industrial wastewater caustic alumina Determination of alkalinity, measuring range: 50mg/L ~ 1000mg/L. This standard also applies to other industries aluminum caustic alkaline wastewater Determination of alkalinity. | YS/T 740-2010: Method for determination of caustic alkalinity in wastewater of alumina 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.
Method for determination of caustic alkalinity in wastewater of alumina industry
ICS 13.030.20
H12
People's Republic of China Nonferrous Metals Industry Standard
Alumina industrial waste caustic alkalinity determination
Issued on. 2010-11-22
2011-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard was drafted. Aluminum Corporation of China Henan Branch, China Zhengzhou Research Institute of Chalco, Nanshan Aluminum
Industry Co., Ltd., Luoyang Xiangjiang Wanji Aluminum Co., Ltd.
The main drafters of this standard. Li Chunchao, Hu Ying, cattle Limin, Zhang Yuxin, Mr Chan Jun, Xue Ning, Jiang Wei, romero, He Jinghua.
Alumina industrial waste caustic alkalinity determination
Warning --- personnel should use the standard practice of formal site sampling and laboratory work. This standard does not point out all available
Energy security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This standard specifies the method for determination of aluminum in industrial waste water caustic alkalinity.
This standard applies to industrial waste alumina caustic alkalinity measurement, measurement range. 50mg/L ~ 1000mg/L.
This standard also applies to the determination of other industries including aluminum alkaline wastewater caustic alkalinity.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Preparation of GB/T 601 chemical reagent standard solution
GB/T 603 chemical reagent in test methods - Preparations with
Conservation and management of technical requirements GB/T 12999 Water Sampling sample
3 Method summary
The barium test solution was added, so that barium carbonate precipitate generated, and sodium salicylate masking aluminum phenolphthalein - green as indicator, salt
Acid standard solution direct titration test solution, the test solution is obtained caustic alkalinity.
4 Terms and Definitions
The following terms and definitions apply to this document.
Caustic alkalinity causticalkalinity
Direct titration by hydrochloric acid (end pH = 8.3) combined volume of all the water and a small amount of caustic alkali aluminate, represented by Na2O.
5 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.
5.1 Sodium carbonate. reference reagents.
5.2 hydrochloride (ρ1.19g/mL).
5.3 carbon dioxide-free water. boil water 15min, cooled to room temperature and stand, now with the current preparation.
5.4 Ethanol (anhydrous).
5.5 barium chloride solution (50g/L).
5.6 sodium salicylate (50g/L).
5.7 phenolphthalein indicator (10g/L). Weigh 1.0g of phenolphthalein was dissolved in 50mL of ethanol (5.4), diluted with water to 100mL, and mix.
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