水总硬度检测试纸,水质检测试纸
:郭
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:,
说明:
1)水总硬度检测试纸,水质检测试纸显色灵敏度下限一般为0.2毫克/升,被检测液低于下限可用比色管来测定。
2)使用方法与PH试纸方法相同,数秒-数十秒即可定量。
3)浓度定量与色卡对比,色卡一般分为5个梯度。
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