GB/T 4051-1997
Replaced
GB/T 4051-2013
Active
National standards
GB/T 4051-2013 Synthetic ruby
GB/T 4051-2013 Synthetic ruby
Basic Information
Standard Code:
GB/T 4051-2013
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Clocks and watches
ICS Name:
Horology
Publish Date:
2013-12-17
Implement Date:
2014-12-01
Pages:
10 pages
Scope
This standard specifies the terms and definitions of red synthetic corundum, the names of its various parts, technical requirements, inspection methods, inspection rules, and packaging, marking, and transportation.
This standard applies to red synthetic corundum pear crystals grown by flame fusion method.
Development Information
Replace the following standards
Referenced Standards
Related Standards
QB/T 1539-2023
Active
QB/T 1539-2023 QB/T 1539-2023 Brass sheet and strip for clocks and watches
QB/T 1542-2020
Active
QB/T 1542-2020 QB/T 1542-2020 Lead brass bars and wires for clocks and watches
QB/T 1911-2019
Active
QB/T 1911-2019 The clock is made of lead-antimony brass plate and band
QB/T 2315-1997
Active
QB/T 2315-1997 Watch case round glass size series
QB/T 2313-1997
Abolished