How to use a hand held refractometer to measure salinity.
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4:42
How to read a refractometer | BRStv How-To
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17:49
Using a pH Meter - Everything You Need to Know About pH
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12:39
Refractometer for checking water content in honey
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6:09
How do you use a Micropipette? A step-by-step guide!
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5:03
Salinity | How to Use and Calibrate a Refractometer
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5:59
Food Quality - Refractometer Tutorial
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13:45
Using a hand held pH meter.
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12:50