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Product no.: 001453
Refill pack for the JBL Mg Test = Pack containing 1xMG1 and 2xMG2
The JBL Test MG/Ca is an easy-to-use drop test for measuring the magnesium and calcium content in saltwater. Since the magnesium content can only be determined by calculating the sum of magnesium plus calcium, both tests have been combined in one package. The magnesium content is obtained by subtracting the calcium content from the total value of Mg + Ca.
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