SN/T 3056.13-2011Determination of essential parameters of chemical raw materials for use in fireworks and firecrackers. Part 13: Silver nitrate (English PDF)
烟花爆竹用化工原材料关键指标的测定 第13部分：硝酸银
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Issued by
General Administration of Customs
Level / Type
National · Recommended
Issue date
September 9, 2011
Implementation date
April 1, 2012
Scope
SN/T 3056.13-2011 is the English-translated version of 烟花爆竹用化工原材料关键指标的测定 第13部分：硝酸银.
SN/T 3056.13-2011 — SN/T 3056 provisions of this part of the fireworks used in the determination of silver nitrate silver nitrate purity, water-insoluble matter content side Method, determination of moisture content, pH value determination method, determination of moisture absorption rate, the determination of fineness.
This section applies to fireworks Determination of silver nitrate silver nitrate purity Determination of water insoluble matter content, moisture content determination, pH Measured values, measurement of moisture absorption rate was measured fineness.
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Document preview — SN/T 3056.13-2011
National Standard of the People's Republic of China
- Classification
- Y 88
Issued by: General Administration of Customs
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3.1 Drying the sample
- 3.2 Determination of water-insoluble content
Foreword
"Determination of fireworks with chemical raw materials key indicators" SN/T 3056 series of standards is divided into 15 parts.
--- Part 1. potassium hydrogen phthalate;
--- Part 2. sodium fluoride;
--- Part 3. Red Lead;
--- Part 4. basic copper carbonate;
--- Part 5. sulfur;
--- Part 6. strontium sulfate;
--- Part 7. copper sulfate;
--- Part 8. potassium chlorate;
--- Part 9. sodium bicarbonate;
--- Part 10. strontium carbonate;
--- Part 11. iron;
--- Part 12. barium nitrate;
--- Part 13. Silver nitrate;
--- Part 14. bismuth oxide;
--- Part 15. potassium dichromate.
This section SN/T 3056 Part 13.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
1 Scope
SN/T 3056 provisions of this part of the fireworks used in the determination of silver nitrate silver nitrate purity, water-insoluble matter content side Method, determination of moisture content, pH value determination method, determination of moisture absorption rate, the determination of fineness.
This section applies to fireworks Determination of silver nitrate silver nitrate purity Determination of water insoluble matter content, moisture content determination, pH Measured values, measurement of moisture absorption rate was measured fineness.
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 titration solution GB/T 6003.1 Test sieves of metal wire cloth Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 8170 repair value expressed about the rules and limit values and judgment Test Method 3
3.1 Drying the sample
Sample at 105 °C ± 2 °C dried 3h, into the dryer to cool reserve. After drying the sample for the addition of water, fine givers items seized Measured by.
3.2 Determination of water-insoluble content
3.2.1 Principle
After the sample was dissolved in water, filtered, dried and insoluble matter was weighed.
3.2.2 Reagents
Hydrochloric acid (110).
3.2.3 Instruments
3.2.3.1 Drying oven. Controlled temperature 105 °C ± 2 °C.
3.2.3.2 Analytical balance. accuracy of 0.1mg.
3.2.3.3 4 emery core Crucible. volume 30mL. After pumping water sufficiently washed, dried at 105 °C 3h, after cooling spare.
3.2.3.4 filtration device set.
3.2.4 Analysis of step
3.2.4.1 Weigh a sample of about 10g, accurate to 0.1mg, dissolved in 300mL water and heated until dissolved.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 6 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 601Chemical Reagent - Preparations of Standard Volumetric Solutions
- GB/T 6003.1Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth
- GB/T 6682Water for analytical laboratory use - Specification and test methods
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
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Related Standards
GB/T 6003.1-2022 — Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth
GB/T 601-2016 — Chemical Reagent - Preparations of Standard Volumetric Solutions
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