external standard method
external standard method, Total:3 items.
The international standard classification for "external standard method" includes: Water quality .
The Chinese standard classification for "external standard method" includes: Environmental sanitation .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 5750.9-2023 Standard examination methods for drinking water—Part 9: Pesticides indices
- GB/T 5750.8-2006 Standard examination methods for drinking water - Organic parameters
British Standards Institution (BSI)
- BS EN 14625:2024 Ambient air. Standard method for the measurement of the concentration of ozone by ultraviolet photometry
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