GB/T 4051-1997
Cal synthetic ruby (English Version)
- Standard No.
- GB/T 4051-1997
- Language
- Chinese, Available in English version
- Release Date
- 1997
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2014-12
- Replace By
- GB/T 4051-2013
- Latest
- GB/T 4051-2013
- Scope
- This standard specifies the definition of red artificial corundum, names of various parts, technical requirements, test methods, inspection rules, packaging, marking, and transportation. This standard is applicable to the red artificial corundum pear crystals grown by the flame fusion method for the manufacture of precious stone components such as clocks and instruments and handicraft decorations.
GB/T 4051-1997 history
- 2013 GB/T 4051-2013 Synthetic ruby
- 1997 GB/T 4051-1997 Cal synthetic ruby
