JJG 149-1994
V.R. of Standard Superficial Rockwell Hardness Test Block (English Version)

Standard No.

JJG 149-1994

Language

Chinese, Available in English version

Release Date

1994

Published By

National Metrological Verification Regulations of the People's Republic of China

Status

Withdraw

Replace By

JJG 149-2020

Latest

JJG 149-2020

Replace

JJG 149-1983

JJG 149-1994 history

• 1970 JJG 149-2020 Electromagnetic layered sedimentation instrument
• 1994 JJG 149-1994 V.R. of Standard Superficial Rockwell Hardness Test Block
• 0000 JJG 149-1983