pH of Cement for Floor Installation Testing LAQUAtwin is a series of pocket ION meters. Using Ion Selective Electrode (ISE) technology, they are available for measuring Conductivity, Calcium, Nitrate, Potassium, Sodium, Salt concentration and pH measurement. Using just a tiny amount of sample, the LAQUAtwin proprietary ?at sensors can quickly and accurately measure the values of the chemical parameters in the ?eld. Introduction When ?ooring tiles are installed, it is very important that the sub?oor level has a certain pH level. When the alkalinity in a concrete sub?oor is high, it can stop the ?oor covering adhesive from bonding properly to the concrete. This is a problem that has only recently been discovered and the new Australian Standard for resilient ?ooring installation (AS 1884-2012

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