JB/T 8240-1999
Ocular screw thread for optical instruments (English Version)
- Standard No.
- JB/T 8240-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- Professional Standard - Machinery
- Status
- 2010-02
- Latest
- JB/T 8240-1999
- Scope
- This standard specifies the tooth structure type, diameter, pitch and number of threads, and basic dimensions of eyepiece threads for optical instruments. This standard applies to single-wire and multi-wire eyepiece threads with a diameter of 5mm to 8mm for optical instruments.
JB/T 8240-1999 history
- 1999 JB/T 8240-1999 Ocular screw thread for optical instruments
