Water quality analysis leaching tests for water supply materials and equipment.

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last updated：Jul 15, 2025

内藤環境管理

Please leave the water quality testing when switching to a direct water supply system to Naito Environment!

Tap water is essential to our lives. The materials that supply tap water can be broadly classified into two categories: materials (equipment) used in the water purification process and transportation process at water facilities, and materials (water supply tools) that branch off from the distribution pipes installed by water service providers. "Leaching tests" are conducted to confirm whether harmful substances leach out from these materials when they come into contact with water. At Naito Environmental Management Co., Ltd., we prepare leachate from water supply materials and tools, and test whether this leachate meets the standard values for leaching criteria set by law. The analysis items and frequency may vary depending on the material differences, but please feel free to contact us if you have any questions. For more details, please inquire or refer to the catalog.

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【Analysis Items】 ○ Cadmium and its compounds, selenium and its compounds, lead and its compounds ○ Arsenic and its compounds, hexavalent chromium compounds, boron and its compounds ○ Zinc and its compounds, aluminum and its compounds, copper and its compounds ○ Manganese and its compounds, iron and its compounds, mercury and its compounds ○ Cyanide ions and cyanide chloride, nitrate nitrogen and nitrite nitrogen ○ Fluorine and its compounds, sodium and its compounds, chloride ions ○ Carbon tetrachloride, 1,2-dichloroethane ○ Cis-1,2-dichloroethylene and trans-1,2-dichloroethylene ○ Dichloromethane, tetrachloroethylene, trichloroethylene, benzene ○ Evaporation residue, anionic surfactants, non-ionic surfactants ○ Phenolic compounds, organic matter (total organic carbon content) ○ Taste, odor, color, turbidity, epichlorohydrin, amines ○ 2,4-toluenediamine, 2,6-toluenediamine, 1,4-dioxane, formaldehyde ○ Vinyl acetate, styrene, 1,2-butadiene, 1,3-butadiene, N,N-dimethylaniline ○ Reduction of residual chlorine ● For more details, please contact us or refer to the catalog.