|
US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 26824-2020: Nanoscale alumina
Status: Valid GB/T 26824: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 26824-2020 | English | 229 |
Add to Cart
|
3 days [Need to translate]
|
Nanoscale alumina
| Valid |
GB/T 26824-2020
|
| GB/T 26824-2011 | English | 399 |
Add to Cart
|
3 days [Need to translate]
|
Nano-alumina
| Obsolete |
GB/T 26824-2011
|
PDF similar to GB/T 26824-2020
Basic data | Standard ID | GB/T 26824-2020 (GB/T26824-2020) | | Description (Translated English) | Nanoscale alumina | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G13 | | Classification of International Standard | 71.060.20 | | Word Count Estimation | 12,184 | | Date of Issue | 2020-12-14 | | Date of Implementation | 2021-07-01 | | Older Standard (superseded by this standard) | GB/T 26824-2011 | | Quoted Standard | GB/T 191; GB/T 6609.2; GB/T 6678; GB/T 6679; GB/T 8170; GB/T 19587-2017; GB/T 20020-2013; GB/T 30544.4; GB/T 30904; GB/T 37248 | | Regulation (derived from) | National Standard Announcement No. 28 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | | Summary | This standard specifies the product classification and code, technical requirements, test methods, sampling, inspection rules, packaging, labeling, storage and transportation of nano alumina. This standard applies to the quality inspection and acceptance of nano-alumina prepared by the liquid phase method and the gas phase method. Nano alumina prepared by other processes can be implemented by reference. Alumina molecular formula: Al2O3. | GB/T 26824-2020: Nanoscale alumina---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.
(Nano alumina)
ICS 71:060:20
CCSG13
National Standards of People's Republic of China
Replace GB/T 26824-2011
Nano alumina
2020-12-14 release
2021-07-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 Standardization Guidelines Part 1: Structure and Drafting Rules of Standardization Documents
Drafting:
This document replaces GB/T 26824-2011 "Nano Alumina", compared with GB/T 26824-2011, except for structural adjustment and editorial
In addition to the changes, the main technical changes are as follows:
a) Added introduction;
b) Modified the scope of application of the document (see Chapter 1, Chapter 1 of the:2011 edition);
c) Some reference documents have been added (see Chapter 2);
d) Added terms and definitions (see Chapter 3);
e) Modified product classification and added product code (see Chapter 4, Chapter 3 of the:2011 edition);
f) The technical indicators and requirements of nano alumina have been deleted, and the technical requirements of nano alumina prepared by liquid phase method and gas phase method have been added:
The technical requirements of nano alumina (see Table 1, Table 2, and Table 1 of the:2011 edition);
g) The test requirements for the pH value and microscopic morphology of the suspension have been added; the silica, ferric oxide, sodium oxide, calcium oxide, oxygen
Reference method for determination of magnesium content (see Chapter 6, Chapter 5 of the:2011 edition);
h) Added sampling (see Chapter 7);
i) Modified the inspection rules (see Chapter 8, Chapter 6 of the:2011 edition);
j) Combine packaging, labeling, storage and transportation into one chapter (see Chapter 9, Chapter 7 and Chapter 8 of the:2011 edition):
This document was proposed by the Chinese Academy of Sciences:
This document is under the jurisdiction of the Nanomaterials Subcommittee of the National Nanotechnology Standardization Technical Committee (SAC/TC279/SC1):
Drafting organizations of this document: Guangzhou Huifu Research Institute Co:, Ltd:, China Academy of Inspection and Quarantine Sciences, Xuancheng Jingrui New Materials Co:, Ltd:,
Guangzhou Jibisheng Technology Industry Co:, Ltd:, Metallurgical Industry Information Standards Institute, Shandong Guoci Functional Materials Co:, Ltd:, Zhongguancun Hua
Qing Graphene Industry Technology Innovation Alliance, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Qinghai Shengnuo Optoelectronics Technology Co:, Ltd:, Beijing Physical Chemistry
Analysis and testing center:
The main drafters of this document: Wu Chunlei, Zou Mingqiang, Xu Jin, Li Zhengfa, Li Qian, Si Liuqi, Dai Shifeng, Wang Zheng, Liu Jianghua, Liu Weili,
Du Haijing, Wang Sheng, Xu Yong, Qiu Qinbiao, Tian Zijian, Mo Xuekui, Zhang Mei:
The previous versions of the documents replaced by this document are as follows:
---GB/T 26824-2011:
Introduction
Nano alumina is a new nano material with corrosion resistance, high temperature resistance, high hardness and easy dispersion: It has been used in battery diaphragms, catalyst carriers, ceramics
Many fields such as coating and polishing have been widely used: The industrial preparation methods of nano alumina mainly include liquid phase method and gas phase method:
The nano-alumina prepared by the same process method exhibits unique properties in terms of crystal form, morphology and performance, making it suitable for different applications
The directions show their respective performance advantages: For example, the liquid phase method can produce high-purity α-crystal nano alumina, which can be used in laser crystals and lithium battery diaphragms:
The application of coatings, thermally conductive powders and ceramic coatings is in the ascendant; the liquid phase method can also be used to obtain high-purity γ-crystalline nano-alumina:
The high-efficiency catalyst carrier for automobile and chemical exhaust gas exhibits broad application value: Nano alumina prepared by gas phase method is generally γ crystal
Type-based mixed crystals, the microscopic morphology of particle aggregation is dendritic, anti-ultraviolet coatings, powder coatings, catalysts in phosphors and energy-saving fluorescent lamps
There are unique applications in the fields of chemical carrier and polishing:
This document has established corresponding requirements in combination with the technical requirements of the preparation process and application fields, which is conducive to the accurate characterization and evaluation of the upstream and downstream industries
Nano alumina has important guiding significance for promoting the promotion and application of nano alumina in a wider range:
Nano alumina
1 Scope
This document specifies the product classification and code, technical requirements, test methods, sampling, inspection rules, packaging, labeling, and storage of nano alumina:
Storage and transportation:
This document is applicable to the quality inspection and acceptance of nano-alumina prepared by liquid phase method and gas phase method: Nano alumina prepared by other processes
Can refer to implementation:
Alumina molecular formula: Al2O3:
2 Normative references
The contents of the following documents constitute indispensable clauses of this document through normative references in the text: Among them, dated quotations
Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document:
GB/T 191 Packaging, Storage and Transportation Graphic Mark
GB/T 6609:2 Alumina chemical analysis method and physical property determination method Part 2: 300℃ and 1000℃ mass loss
Determination of
GB/T 6678 General Rules for Sampling of Chemical Products
GB/T 6679 General Rules for Sampling of Solid Chemical Products
GB/T 8170 Numerical rounding rules and the expression and determination of limit values
GB/T 19587-2017 Gas adsorption BET method for determination of specific surface area of solid matter
GB/T 20020-2013 Fumed silica
GB/T 30544:4 Nanotechnology terminology Part 4: Nanostructured materials
GB/T 30904 Inorganic chemical products crystal structure analysis X-ray diffraction method
GB/T 37248 High purity alumina-Determination of trace metal elements-Inductively coupled plasma emission spectrometry
3 Terms and definitions
The following terms and definitions defined in GB/T 30544:4 apply to this document:
3:1
Liquidphasemethod
One or more suitable soluble metal salts are metered into a solution to make each element in an ionic or molecular state, and then select a combination
Suitable precipitating agent or use evaporation, sublimation, hydrolysis and other operations to uniformly precipitate or crystallize metal ions, and finally dehydrate the precipitate or crystals
Or a method of thermal decomposition to obtain ultrafine powder:
Note: The common ones are hydrothermal method, precipitation method, sol-gel method:
3:2
Gasphasemethod
The substance is vaporized by various methods, and physical or chemical changes occur in the gas state, and then the particles are aggregated and grown through the cooling process:
A method of forming ultrafine powders:
Note: The common methods are evaporation condensation and gas phase hydrolysis:
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 26824-2020_English be delivered?Answer: Upon your order, we will start to translate GB/T 26824-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 26824-2020_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 26824-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB/T 26824-2020?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 26824-2020 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|