GB/T 3284-2015Analytical method of the chemical composition in the quartz glass (English PDF)
石英玻璃化学成分分析方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 9, 2015
Implementation date
September 1, 2016
Scope
GB/T 3284-2015 is the English-translated version of 石英玻璃化学成分分析方法.
GB/T 3284-2015 is the Chinese standard "Analytical method of the chemical composition in the quartz glass".
Its scope clause reads: This standard specifies the basic requirements for the analysis of chemical composition of quartz glass, the preparation of samples, methods and principles, reagents and materials, instrument Equipment and equipment, analysis steps, results calculations and representations.
This standard applies to quartz glass raw materials, quartz glass and products, quartz glass fiber and chemical composition analysis. Its clauses include normative reference documents; basic requirements of the test; sample preparation.
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Document preview — GB/T 3284-2015
National Standard of the People's Republic of China
- ICS
- 81.040
- Classification
- Q 35
- Replacing
- GB/T 3284-1993
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 normative reference documents
- 3 basic requirements of the test
- 4 sample preparation
1 Scope
This standard specifies the basic requirements for the analysis of chemical composition of quartz glass, the preparation of samples, methods and principles, reagents and materials, instrument
Equipment and equipment, analysis steps, results calculations and representations.
This standard applies to quartz glass raw materials, quartz glass and products, quartz glass fiber and chemical composition analysis.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 602 Preparation of standard solutions for the determination of impurities in chemical reagents
GB/T 6682 Analytical laboratory water specifications and test methods
3 basic requirements of the test
3.1 Water and reagents
Unless otherwise stated, the reagents used in the analysis shall not be less than the analytical grade and the water used shall not be less than the secondary water specified in GB/T 6682
Claim.
The degree of dilution of the reagent is expressed in terms of volume ratio, expressed as follows.
--- "Dilution V1 -> V2" means that the specific solution with volume V1 is diluted to the final volume of V2.
--- "V1 V2" means that a specific solution of volume V1 is added to the solvent in volume V2.
3.2 constant volume
After the first burning, cooling, weighing, repeated burning (each 20min), and then cooling, weighing, when the difference between the two consecutive weighing small
At or equal to 0.0002g, that is constant.
3.3 Standard stock solution
Before use should be constant temperature to 20 °C ± 2 °C, and shake well. Unless otherwise specified, at room temperature (15 °C ~ 25 °C), the shelf life in general
Not more than two months, when there is turbidity, precipitation or color changes and other phenomena, should be re-prepared.
4 sample preparation
4.1 Reagents
Hydrochloric acid (HCl). excellent grade pure, the mass fraction of 36% to 38%.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 3284
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 3284-2015 | Analytical method of the chemical composition in the quartz glass | current edition | Current |
| GB/T 3284-1993 | Analytical method of the chemical composition in the quartz glass | previous edition | Superseded |
This page sells the current edition, GB/T 3284-2015. Earlier editions are listed for reference only.
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