GB/T 4051-2013Synthetic ruby (English PDF)
红色合成刚玉
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 17, 2013
Implementation date
December 1, 2014
Scope
GB/T 4051-2013 is the English-translated version of 红色合成刚玉.
GB/T 4051-2013 is the Chinese standard "Synthetic ruby". Its scope clause reads: This standard specifies the terms and definitions red synthetic corundum, the name of each part, technical requirements, test methods, inspection rules and packaging, marking Chi, transportation.
This standard applies to the growth of red flame fusion synthetic corundum boules. Its clauses include terms and definitions.
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Document preview — GB/T 4051-2013
National Standard of the People's Republic of China
- ICS
- 39.040
- Classification
- Y 11
- Replacing
- GB/T 4051-1997
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 3.2 Industrial gem
- 3.3 Ornamental stones decorativeruby
- 3.4 Semi boule halfpear-formcrystal
- 3.5 Cleavage plane
- 3.6 Orientation angles directionalangle
- 3.7 Smooth non-frosted
1 Scope
This standard specifies the terms and definitions red synthetic corundum, the name of each part, technical requirements, test methods, inspection rules and packaging, marking
Chi, transportation.
This standard applies to the growth of red flame fusion synthetic corundum boules.
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.
GB/T 16553-2010 jade jewelry appraisal
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Red pear-shaped doped with Cr2O3 of gamma-Al2O3 powder in a sintering furnace at high temperature melting in the pre-orientation of the seed crystals formed
Single crystal, the main chemical composition of alpha-Al2O3.
3.2 Industrial gem
For the processing used in industrial products, the impact on product performance synthetic corundum components.
3.3 Ornamental stones decorativeruby
For processing has no effect on product performance, synthetic corundum mainly for decoration gem element.
3.4 Semi boule halfpear-formcrystal
Synthetic corundum boule along the optical axis and crystal face growth axis orientation splitting in half and crystals.
3.5 Cleavage plane
Crystals can often be along one or some of the planes have a certain orientation splitting nature called rational solution crystal, so that the planes called Solutions
Cleave plane (ie, subdivision surfaces).
3.6 Orientation angles directionalangle
The angle between the optical axis and the growth axis.
3.7 Smooth non-frosted
Boule cylindrical surface was shiny glass, velvet-like thin layer of powder is no uniform coverage or sparsely covered.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 4051
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 4051-2013 | Synthetic ruby | current edition | Current |
| GB/T 4051-1997 | Synthetic ruby | previous edition | Superseded |
This page sells the current edition, GB/T 4051-2013. Earlier editions are listed for reference only.
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