YS/T 517: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 517-2024 | English | RFQ |
ASK
|
3 days [Need to translate]
|
(Sodium fluoride)
| Valid |
YS/T 517-2024
|
| YS/T 517-2009 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
Sodium fluoride
| Obsolete |
YS/T 517-2009
|
| YS/T 517-2006 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
Sodium fluoride
| Obsolete |
YS/T 517-2006
|
Basic data | Standard ID | YS/T 517-2024 (YS/T517-2024) | | Description (Translated English) | (Sodium fluoride) | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H21 | | Classification of International Standard | 71.060.50 | | Date of Issue | 2024-10-24 | | Date of Implementation | 2025-05-01 | | Older Standard (superseded by this standard) | YS/T 517-2009 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation, storage, quality certificate and order form content of sodium fluoride. This standard applies to sodium fluoride made by the reaction of sodium fluorosilicate and sodium carbonate. | YS/T 517-2009: Sodium fluoride---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.
Sodium fluoride
ICS 71.060.50
H21
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 517-2006
Sodium fluoride
2009-12-04 released
2010-06-01 Implementation
Issued by the Ministry of Industry and Information Technology of the People's Republic of China
Foreword
This standard replaces YS/T 517-2006 (formerly GB/T 4293-1984).
This standard is the revision of YS/T 517-2006 "sodium fluoride", compared with YS/T 517-2006, the main changes are as follows.
- the original standard "This standard applies to hydrofluoric acid or silicic acid and carbonate role made of sodium fluoride" modified to "this standard
Suitable for hydrofluoric acid or silicic acid and sodium salt produced by the role of sodium fluoride.
- the sample used in the chemical analysis method is a dry sample, so the original table note 2 "table chemical composition calculated by dry basis"
Removed.
--- As the YS/T 535-2009 "sodium fluoride chemical analysis method" for the determination of fluorine content, increase the conversion of F to NaF items.
--- Change the Na2CO3 specified in the original standard to carbonate (CO32-). Rhithers. Rhithers. Rhithers. Rhithers. Rhithers. Rhithers. Rhithers. Rhithertigmaates calling Results
The acid salt content is converted to the corresponding "0.37, 0.74, 1.49".
--- the original standard "demand side to respond to the products received in accordance with the provisions of this standard re-inspection," modified to "demand side to receive the production
Shall be re-tested in accordance with the provisions of this standard.
--- increase the order or the contents of the contract.
This standard by the National Nonferrous Metals Standardization Technical Committee proposed and centralized.
This standard is drafted by Fushun Aluminum Co., Ltd. and China Nonferrous Metals Industry Standard Measurement Quality Institute.
This standard is drafted by Fushun Aluminum Company Limited.
The main drafters of this standard. Yang Yuhong, Ji Chunlei, Zeng Qingyi.
This part of the previous version of the standard to replace the release of the situation.
YS/T 517-2006 (original GB/T 4293-1984).
Sodium fluoride
1 Scope
This standard specifies the requirements, test methods, inspection rules and labeling, packaging, transportation, storage, order (contract) of sodium fluoride.
This standard applies to hydrofluoric acid or silicic acid and sodium salt produced by the role of sodium fluoride.
2 normative reference documents
The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all
(Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard
Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard.
Chemical analysis of sodium fluoride in YS/T 535 (all parts)
3 request
3.1 Sodium fluoride product grade
Sodium fluoride is divided into three grades according to chemical composition.
Table 1%
grade
chemical composition
NaF SiO2
Carbonate
(CO32-)
Sulfate
(SO42-)
acidity
(HF)
Not in water
Solvents
H2O
Not less than no more than
Primary 98 0.5 0.37 0.3 0.1 0.7 0.5
Secondary 95 1.0 0.74 0.5 0.1 3 1.0
Level 3 84 - 1.49 2.0 0.1 10 1.5
Note. The conversion factor for converting the measured amount of fluorine into sodium fluoride is. NaF = (22.99 + 19.00) /19.00 (F) = 2.21 (F).
3.2 appearance quality
Sodium fluoride is a white powder. Visual no inclusions.
4 test method
4.1 Chemical composition Arbitration analysis method according to YS/T 535.
4.2 The appearance of the product quality inspection with visual inspection.
5 inspection rules
5.1 Inspection and acceptance
5.1.1 The product can be inspected by the supplier's quality inspection department to ensure that the product quality meets the requirements of this standard (or order contract) and fill in
Quality certificate.
5.1.2 The purchaser may carry out the re-inspection of the product received in accordance with the provisions of this standard, such as the result of the re-inspection and the grade or order of the certificate
Incompatible, should be written in the form of supply to the supplier, by the supply and demand sides to resolve. For the objection should be received within three months from the date of receipt of the product
Out. For arbitration, both supply and demand should be sampled in accordance with the provisions of 5.4.2 for arbitration analysis, according to the results of the arbitration analysis to re-determine
grade.
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