YS/T 535.2-2025Determination of chemical content of sodium fluoride - Part 2: Determination of fluoride content - Distillation-thorium nitrate titration method (English PDF)
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Issued by
Ministry of Industry and Information Technology
Level / Type
National · Recommended
Issue date
August 19, 2025
Implementation date
March 1, 2026
Scope
YS/T 535.2-2025 (Determination of chemical content of sodium fluoride - Part 2: Determination of fluoride content - Distillation-thorium nitrate titration method) is available as an English-translated PDF.
YS/T 535.2-2025 — This standard specifies the method for determining the fluoride content in sodium fluoride using distillation-thorium nitrate titration. This standard is applicable to the determination of fluoride content in sodium fluoride.
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Document preview — YS/T 535.2-2025
National Standard of the People's Republic of China
- ICS
- 77.100.10
- Classification
- H 30
- Replacing
- YS/T 535.2-2009
Issued by: Ministry of Industry and Information Technology
Contents
- What this standard covers1
- Document data2
What this standard covers
This standard specifies the method for determining the fluoride content in sodium fluoride using distillation-thorium nitrate titration. This standard is applicable to the determination of fluoride content in sodium fluoride.
Document data
International classification (ICS): 77.100.10.
Chinese classification (CCS): H30.
Estimated length of the Chinese original: 10,173 words.
Supersedes the earlier edition YS/T 535.2-2009.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.
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Related Standards
YS/T 535.1-2009 — Chemical analysis methods of sodium fluoride. Part 1: Determination of moisture content. Gravimetric method
YS/T 535.10-2009 — Chemical analysis methods of sodium fluoride. Part 10: Preparation and storage of test samples
YS/T 535.11-2020 — Chemical analysis methods of sodium fluoride - Part 11: Determination of sodium fluorosilicate content. Acid-base titration method
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YS/T 535.2-2025
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