SN/T 3056.9-2011Determination of essential parameters of chemical raw materials for use in fireworks and firecrackers. Par 9: Sodium hydrogen carbonate (English PDF)

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 9.

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 This section specifies the method for measuring the purity of sodium bicarbonate and sodium bicarbonate in the determination of fireworks, sodium content Method, determination of chloride content, iron content determination, Determination of water-insoluble matter content, moisture content determination, pH Determination of value, moisture absorption rate measuring method, the measuring method fineness.

This section applies to fireworks Determination of sodium bicarbonate sodium bicarbonate purity testing, measuring sodium content, chloride content Measuring set, Determination of iron content, Determination of water insoluble matter content, moisture content, pH value determination, the determination 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 General Method GB/T 3049 Industrial chemicals determination of iron content 1,10-phenanthroline spectrophotometry 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