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GB/T 12684-2018: Boron compound for industrial use -- Methods of test
Status: Valid GB/T 12684: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 12684-2018 | English | 359 |
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Boron compound for industrial use -- Methods of test
| Valid |
GB/T 12684-2018
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| GB/T 12684-2006 | English | 439 |
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Methods of test for boron compound for industrial use
| Obsolete |
GB/T 12684-2006
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| GB/T 12684.1-1990 | English | 199 |
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Boric acid for industrial use--Determination of boric acid content
| Obsolete |
GB/T 12684.1-1990
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PDF similar to GB/T 12684-2018
Basic data | Standard ID | GB/T 12684-2018 (GB/T12684-2018) | | Description (Translated English) | Boron compound for industrial use -- Methods of test | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G10 | | Classification of International Standard | 71.040.40 | | Word Count Estimation | 18,124 | | Date of Issue | 2018-06-07 | | Date of Implementation | 2019-01-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 12684-2018: Boron compound for industrial use -- Methods of test---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.
Boron compound for industrial use--Methods of test
ICS 71.040.40
G10
National Standards of People's Republic of China
Replace GB/T 12684-2006
Industrial boride analysis method
Published on.2018-06-07
2019-01-01 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 12684-2006 "Industrial Boride Analysis Method", compared with GB/T 12684-2006, except for editorial
The main technical changes outside the revision are as follows.
--- Increased the content of impurity elements (sodium, iron, calcium, magnesium, aluminum, silica, arsenic) in industrial boric acid, anions (fluorine, chlorine, bromine, sulfate,
Determination of nitrate and phosphate content and boron (10B/11B) abundance ratio (see Chapter 3);
--- Removed the reduction titration method in the determination of sulfate content in industrial boric acid (see 4.3.1 of.2006 edition);
--- Removed the determination of ammonia content in industrial boric acid (see.2006 edition of 4.6);
--- Removed the normative appendix "Determination of boric acid content in boric acid boronic acid" (see Appendix A of the.2006 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 of the Inorganic Chemical Subcommittee (SAC/TC63/SC1).
This standard was drafted. Dalian Jinma Boron Technology Group Co., Ltd., Dalian University of Technology, Qingdao inspection and quarantine technology development
Xin, Qinghai Salt Lake Research Institute of Chinese Academy of Sciences, CNOOC Tianjin Chemical Research and Design Institute Co., Ltd.
The main drafters of this standard. Wang Hongtao, Ning Guiling, Cui He, Li Jinli, Yang Yingshan, Tian Peng, Wang Min, Zhao Zuliang, Wang Yan.
The previous versions of the standards replaced by this standard are.
---GB/T 12684.1~GB/T 12684.8-1990;
---GB/T 12684-2006.
Industrial boride analysis method
Caution - 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
The sample and some of the reagents used are toxic, flammable or corrosive. Care should be taken during handling. If splashed on the skin, immediately flush with water.
Wash, severe cases should be treated immediately; when using flammable products, it is strictly prohibited to use open flame heating. High pressure gas cylinders used in this test method shall be pressed at high pressure.
Cylinder safety procedures operate; the inductively coupled plasma emission spectrometer should not open the torch chamber after igniting the plasma.
1 Scope
This standard specifies the boric acid content, water insoluble content, sulfate content, heavy metal content, arsenic content and impurity elements in industrial boric acid.
(sodium, iron, calcium, magnesium, aluminum, silica) content, anion (fluorine, chlorine, bromine, sulfate, nitrate, phosphate) and boron (10B/11B) abundance
Ratio, industrial boric acid, boron oxide and disodium tetraborate chloride content, industrial boric acid, boron oxide, disodium tetraborate, sodium perborate and crude sodium borate
Method for determination of iron content.
This standard applies to the determination of the content of the corresponding substances in industrial boride.
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 3049-2006 General method for determination of iron content of industrial chemical products 1,10-phenanthroline spectrophotometric method
GB/T 3051-2000 General method for determination of chloride content in inorganic chemical products
GB/T 6682-2008 Analytical laboratory water specifications and test methods
HG/T 3696.1-2011 Preparation of standard solutions, preparations and products for chemical analysis - Part 1 . Standard
Preparation of titration solution
Standard Practice for Preparation of Standard Solutions, Preparations and Products for Chemical Analysis of Inorganic Chemical Products - Part 2. Impurity Standard Dissolution
Liquid preparation
Preparation of standard solutions, preparations and products for chemical analysis - Part 3. Preparations and preparations
Preparation
3 test methods
3.1 General provisions
The reagents and water used in this standard refer to the analytical reagents and the three specified in GB/T 6682-2008 when no other requirements are specified.
Grade water. The standard titration solution, impurity standard solution, preparation and products used in the test are all specified when no other requirements are specified.
Prepared as specified in HG/T 3696.1, HG/T 3696.2, HG/T 3696.3.
3.2 Determination of boric acid content in industrial boric acid
3.2.1 Principle
Boric acid is reinforced with mannitol (or invert sugar) and titrated with sodium hydroxide standard titration solution using phenolphthalein as an indicator.
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