JB/T 7401-1994
Optical flat (English Version)
- Standard No.
- JB/T 7401-1994
- Language
- Chinese, Available in English version
- Release Date
- 1994
- Published By
- Professional Standard - Machinery
- Latest
- JB/T 7401-1994
- Replace
- ZB N304-1985
- Scope
- This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of flat crystals. This standard is applicable to circular flat crystals that use the light wave interference method to test the flatness of the plane and the fitability of the gauge block.
JB/T 7401-1994 history
- 1994 JB/T 7401-1994 Optical flat
