Prepare your own DIY low cost EC calibration solutions using table salt

In this video, I show you how to prepare your own EC calibration solutions. These solutions are 1mS/cm and 2mS/cm and are prepared using sodium chloride (table salt). Make sure you use regular table salt (do not use sea salt, Himalayan salt, or other types of table salt). Regular, iodized salt works fine.
For 1mS/cm add 495mg/L of NaCl, 123.75mg for 250mL
For 2mS/cm add 990mg/L of NaCl, 247.50mg for 250mL
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Class A Volumetric Flask (250mL)
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Beaker set
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Scale +/- 0.001g
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Apera EC meter
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