Total Nitrogen, Total Phosphorus / COD Automatic Measurement Device 'NPW-400 Model'

Compact design with a reagent weighing unit! Based on the measurement methods for total nitrogen and total phosphorus.

The "NPW-400 model" is an automatic measurement device that can automatically measure total nitrogen (TN), total phosphorus (TP), and COD concentrations in wastewater from factories and business establishments, in response to water quality total quantity regulations. It is based on the measurement methods for total nitrogen and total phosphorus as stipulated in the Environmental Agency (now the Ministry of the Environment) Notification No. 64 of 1974, which outlines the testing methods related to the wastewater standards established by the Minister of the Environment based on the regulations for wastewater standards. Additionally, it adopts the "120°C potassium peroxydisulfate decomposition method - ultraviolet spectrophotometry for total nitrogen measurement" and the "120°C potassium peroxydisulfate decomposition method - molybdenum blue spectrophotometry for total phosphorus measurement." 【Features】 ■ Adopts the same 120°C heating decomposition method for 30 minutes as the specified measurement method ■ Achieves good correlation with manual analysis values ■ Simultaneous measurement of TN, TP, and COD (UV) using a multi-wavelength detector ■ Compact design with a simple sample and reagent weighing unit ■ Realizes a simple configuration through integrated manifold piping *For more details, please refer to the PDF document or feel free to contact us.

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