National Metrological Verification Regulations of the People's Republic of China
Latest
JJG 1094-2013
Scope
This procedure applies to the initial calibration, subsequent calibration and in-use inspection of the total phosphorus and total nitrogen water quality online analyzer (hereinafter referred to as the instrument).
JJG 1094-2013 history
2013JJG 1094-2013 Water Quality On-line Analyzers of Total Phosphorus and Total Nitrogen