total phosphorus, total nitrogen
total phosphorus, total nitrogen, Total:2 items.
The international standard classification for "total phosphorus, total nitrogen" includes: .
The Chinese standard classification for "total phosphorus, total nitrogen" includes: .
National Metrological Verification Regulations of the People's Republic of China
- JJG 1094-2013 Water Quality On-line Analyzers of Total Phosphorus and Total Nitrogen
Jiangsu Provincial Standard of the People's Republic of China
- DB32/T 4541-2023 Sea water quality evaluation guide for total nitrogen and total phosphorus
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