JB/T 9431-1999
250×250mm Test Target for overhead projector (English Version)

Standard No.

JB/T 9431-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Machinery

Status

Be replaced 2014-10

Replace By

JB/T 9431-2014

Latest

JB/T 9431-2014

Replace

ZB Y128-1983

JB/T 9431-1999 history

• 2014 JB/T 9431-2014 250 mm×250 mm test target for overhead projector
• 1999 JB/T 9431-1999 250×250mm Test Target for overhead projector