Method and apparatus for the continuous determination of the hardness of water

• 1. 用于供热锅炉水硬度检测的便携设备及其使用方法 [P] . 中国专利： CN113049768A . 2021-06-29
• 2. 基于中央水处理设备的直饮水硬度自动调节控制系统及方法 [P] . 中国专利： CN110543135A . 2019-12-06
• 3. Method for the provision of water with given water hardness, comprises storing water with constant water hardness that has a lower value than the predetermined water hardness from a continuous source or in a container [P] . 德国专利： DE102009048919A1 . 2011-04-28

  机译： 用于提供具有给定水硬度的水的方法，包括将恒定水硬度的水的值低于来自连续来源或容器​​中的预定水硬度的值。

• 4. Method and apparatus for the determination of the water hardness [P] . 德国专利： DE4114380C2 . 1995-06-08

  机译： 测定水硬度的方法和设备

• 5. Method and apparatus for the determination of the water hardness [P] . 德国专利： DE1498997A1 . 1969-02-20

  机译： 测定水硬度的方法和设备

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