SN/T 3056.4-2011Determination of essential parameers of chemical raw materials for use in fireworks and firecrackers. Part 4: Basic cupric 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 4.

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 with the determination of basic copper carbonate copper content, the determination of iron content, salt Determination of acid insoluble content, determination of sulphate content determination method and moisture content.

This section applies to fireworks measuring basic copper carbonate copper content, Determination of iron content, measured hydrochloric acid insoluble content of sulfur Determination of salt content and moisture content determination.

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 Lynn 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 HG/T 3696.1 ~ 3696.3 inorganic chemical products, chemical analysis using standard titration solution, impurity standard solution, preparations and articles Preparation

3 Determination