JJG 139-2017
multibeam echo sounder for shallow water (English Version)

Standard No.

JJG 139-2017

Language

Chinese, Available in English version

Published By

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

Latest

JJG 139-2017

JJG 139-2017 history

• 1970 JJG 139-2017 multibeam echo sounder for shallow water
• 2014 JJG 139-2014 Tension, Compression and Universal Testing Machines
• 2008 JJG 157-2008 Verification Regulation of Universal Tension and Compression Testing Machines for Non-metallic
• 1999 JJG 139-1999 Verification Regulation of Universal Tension and Compression Testing Machine
• 1995 JJG 157-1995 Verification Regulation of Tension Compression and Universal Testing Machina for Non-metallic