JB/T 9330-1999
The basic parameter for diaphragm plate of optical instrument (English Version)

Standard No.

JB/T 9330-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Machinery

Status

Withdraw 2010-02

Latest

JB/T 9330-1999

Scope

This standard specifies the basic parameters and dimensions of single arc variable aperture plates and double arc variable aperture plates. This standard applies to variable apertures for optical instruments.

JB/T 9330-1999 history

• 1999 JB/T 9330-1999 The basic parameter for diaphragm plate of optical instrument