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GB/T 22782-2008 English PDF

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GB/T 22782-2008: Determination of essential parameters of cuprum oxide powder for use in fireworks and firecrackers
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Basic data

Standard ID GB/T 22782-2008 (GB/T22782-2008)
Description (Translated English) Determination of essential parameters of cuprum oxide powder for use in fireworks and firecrackers
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y88
Classification of International Standard 71.100.30
Word Count Estimation 12,113
Date of Issue 2008-12-30
Date of Implementation 2009-09-01
Quoted Standard GB/T 601; GB/T 3049; GB/T 6682; GB/T 8170; HG/T 3696.1
Regulation (derived from) National Standard Approval Announcement 2008 No.24 (Total No.137)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the use of fireworks in nitric acid insoluble copper oxide content, moisture content, iron content, copper content, sulfate content, determination of cuprous oxide content and purity. This standard applies to fireworks insoluble nitric oxide copper content, moisture content, iron content, copper content, sulfate content, determination of cuprous oxide content and purity.

GB/T 22782-2008: Determination of essential parameters of cuprum oxide powder for use in fireworks and firecrackers


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Determination of essential parameters of cuprum oxide powder for use in fireworks and firecrackers ICS 71.100.30 Y88 National Standards of People's Republic of China Determination of fireworks with copper oxide key indicators Posted 2008-12-30 2009-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee of fireworks. This standard was drafted. Guangxi CIQ fireworks testing center. The main drafters of this standard. Wu Junyi, business Jie, Li Yiming and Xiao rejuvenation. Determination of fireworks with copper oxide key indicators

1 Scope

This standard specifies the fireworks with copper oxide in nitric acid insoluble content, moisture content, iron content, copper content, sulfate content, oxidation Determination of copper content and purity. This standard applies to fireworks with nitric acid insoluble copper oxide content, moisture content, iron content, copper content, sulfate content, oxidation Determination of copper content and purity.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Preparation of GB/T 601 chemical reagent standard titration solution General Method GB/T 3049 Industrial chemicals determination of iron content 1,10 Philippines  spectrophotometry method (GB/T 3049- 2006, ISO 6685. 1982, IDT) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment Preparation of standard titration solution of HG/T 3696.1 inorganic chemical products, chemical analysis

3 Determination

3.1 drying the sample The sample was dried at 105 ℃ 3h, into the dryer to cool reserve. After drying the sample project water supply points other than the use of detection. 3.2 Determination of insoluble matter content nitrate 3.2.1 Principle Sample dissolved in nitric acid was filtered, dried insolubles, call quality. 3.2.2 Reagents Unless otherwise indicated in the analysis using only confirm at least three water analytical grade reagents and GB/T 6682 stipulated. Nitric acid (1 + 1). 3.2.3 Instruments Usual laboratory equipment and the following devices. 3.2.3.1 Drying oven. Controlled temperature 105 ℃ ± 2 ℃. 3.2.3.2 Analytical balance. accuracy of 0.1mg. 3.2.3.3 4 emery core Crucible. volume of 30mL. Before and after the test crucible with hydrochloric acid immersion 24h, after washing to neutral, at 105 ℃ Dried 3h, removed, placed in a desiccator, cooled to room temperature and set aside. 3.2.3.4 filtration device. 3.2.3.5 dryer. 3.2.4 Analysis of step 3.2.4.1 Weigh about 5g sample, accurate to 0.1mg, placed in 500mL beaker. 3.2.4.2 added to the beaker 20mL water, nitric acid was slowly added dropwise, until when the violent reaction subsided slowly added 150mL nitric acid, heat and cook Boiling, to maintain micro-boiling 60min.

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