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GB/T 22786-2008 English PDF

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GB/T 22786-2008: Determination of essential parameters of potassium perchlorate for use in fireworks and firecrackers
Status: Valid
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Basic data

Standard ID GB/T 22786-2008 (GB/T22786-2008)
Description (Translated English) Determination of essential parameters of potassium perchlorate 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 12,111
Date of Issue 2008-12-30
Date of Implementation 2009-09-01
Quoted Standard GB/T 601; GB/T 6003.1; GB/T 6682; GB/T 8170
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 perchlorate in water insoluble content, pH value, absorption rate, moisture content, fineness, purity, chloride content, determination of perchlorate content and sodium content and qualitative hypochlorite identification methods. Qualitative identification and determination of the content of sodium chlorate and hypochlorite content, This standard applies to fireworks with potassium perchlorate in water insoluble content, pH value, absorption rate, moisture content, fineness, purity, chloride content.

GB/T 22786-2008: Determination of essential parameters of potassium perchlorate for use in fireworks and firecrackers


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of essential parameters of potassium perchlorate for use in fireworks and firecrackers ICS 71.100.30 Y88 National Standards of People's Republic of China Fireworks with potassium perchlorate key indicators measuring 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

Appendix A of this standard is an informative annex. 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. Suppliers Jie, Wu Junyi, Yanjia Kun, Xiao rejuvenation. Fireworks with potassium perchlorate key indicators measuring

1 Scope

This standard specifies the fireworks with water-insoluble content of potassium perchlorate, pH, moisture absorption, moisture content, fineness, purity, chloride Determination of content, content and sodium chlorate content and qualitative identification of hypochlorite. This standard applies to fireworks with water-insoluble content of potassium perchlorate, pH, moisture absorption, moisture content, fineness, purity, chloride Qualitative identification of content, content and sodium chlorate Determination and hypochlorite.

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 GB/T 6003.1 woven wire mesh test sieve (GB/T 6003.1-1997, neq ISO 3310-1.1990) 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

3 Determination

3.1 drying the sample The sample was dried at 105 ℃ 3h, into the dryer to cool reserve. In addition to water samples for fineness items seized after drying Measured use. 3.2 Determination of water-insoluble content 3.2.1 Principle After the sample was dissolved in water, filtered, and dried insolubles were weighed. 3.2.2 Instruments Conventional laboratory equipment and instruments and the following devices. 3.2.2.1 Drying oven. Controlled temperature 105 ℃ ± 2 ℃. 3.2.2.2 Analytical balance. accuracy of 0.1mg. 3.2.2.3 4 emery core Crucible. volume 30mL. After pumping water sufficiently washed, dried at 105 ℃ 3h, after cooling spare. 3.2.2.4 filtration device set. 3.2.2.5 dryer. 3.2.3 Analysis of step 3.2.3.1 Weigh about 10g sample, accurate to 0.1mg, dissolved in 300mL water, heated until dissolved. 3.2.3.2 sand core which has been weighed crucible mounted on the filtration device, the resulting test solution was poured into the sand core 3.2.3.1 crucible suction filtration. Beaker Material was attached to the wall under the water, then wash with warm water. 3.2.3.3 The sand core crucible at 105 ℃ dried 3h, removed and placed in a desiccator, cooled to room temperature and weigh. Two parallel determination Sample, the mean value. 3.2.4 Calculation Results The mass fraction of water insoluble to count 1, expressed in%, according to equation (1).

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