JJG 656-1990
Verification Regulation of Nitrate Automatic Monitor (English Version)

Standard No.

JJG 656-1990

Language

Chinese, Available in English version

Release Date

1990

Published By

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

Status

Be replaced 2014-03

Replace By

JJG 656-2013

Latest

JJG 656-2013

JJG 656-1990 history

• 2013 JJG 656-2013 Verification Regulation of Nitrate-Nitrogen Automatic Analyzers
• 1990 JJG 656-1990 Verification Regulation of Nitrate Automatic Monitor