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GB/T 22787-2008: Determination of essential parameters of cryolite for use in fireworks and firecrackers
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 22787-2008 | English | 279 |
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Determination of essential parameters of cryolite for use in fireworks and firecrackers
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GB/T 22787-2008
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Basic data | Standard ID | GB/T 22787-2008 (GB/T22787-2008) | | Description (Translated English) | Determination of essential parameters of cryolite 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 | 12,178 | | Date of Issue | 2008-12-30 | | Date of Implementation | 2009-09-01 | | Quoted Standard | GB/T 601; GB/T 3049; GB/T 6003.1; GB/T 6682; GB/T 8170 | | 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 cryolite sulfuric acid insoluble content, moisture content, absorption rate, fineness, aluminum content, iron content and the active ingredient (sodium content) measurement method. This standard applies to fireworks with cryolite sulfuric acid insoluble matter, moisture content, absorption rate, fineness, Determination of iron content and the active ingredient (sodium content), aluminum content. | GB/T 22787-2008: Determination of essential parameters of cryolite for use in fireworks and firecrackers
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Determination of essential parameters of cryolite for use in fireworks and firecrackers
ICS 71.100.30
Y88
National Standards of People's Republic of China
Fireworks and firecrackers - Determination of cryolite 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
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, Li Yiming and Xiao rejuvenation.
Fireworks and firecrackers - Determination of cryolite key indicators
1 Scope
This standard specifies the fireworks with sulfuric acid insoluble content cryolite, moisture content, moisture absorption, fineness, aluminum content, iron content and has
Active ingredient (sodium content) measurement method.
This standard applies to fireworks insoluble content, moisture content, moisture absorption, fineness, content of aluminum, iron sulfate content by cryolite and effective
Ingredient (sodium content) determination.
2 Normative references
The following documents contain provisions which, through reference in this standard to become the standard terms. For dated references, all subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to study under this agreement is standard
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 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 acid insoluble content
3.2.1 Principle
After the sample was dissolved with sulfuric acid by filtration, dried and insoluble matter was weighed.
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.
3.2.2.1 sulfuric acid.
3.2.2.2 sulfuric acid (1 + 4).
3.2.2.3 barium chloride solution (10%).
3.2.3 Instruments
Conventional laboratory equipment and instruments 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 Teflon beaker, 500mL.
3.2.3.4 Teflon rods, 10cm.
3.2.3.5 4 emery core Crucible. volume of 30mL. After washing with dilute sulfuric acid sufficient suction, then washed with water, dried 3h at 105 deg.] C,
After cooling spare.
3.2.3.6 dryer.
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