Fosia Test H20
Manual hand refractometer for quick and accurate determination of coolant concentration in water-soluble lubricants – measuring range 0–20%, accuracy ±0.2%.
Fosia Test H20
( Previously named: Hand refractometer Standard 20 )
Hand refractometer for testing cooling lubricant concentration
• For all emulsions and water-based lubricants
• Ensures correct concentration ratio (e.g. 5% = 1:20)
• Prevents over- or under-dilution
• Reduces coolant waste and disposal costs
• Measuring range: 0–20%
• Accuracy: ±0.2%
• Standardized for 20 °C
• Scale adjustable with distilled water
<h3>Application:</h3>
<p>The Jokisch Fosia Test H20 is a precision hand refractometer for checking the concentration of water-soluble cooling lubricants, including emulsions and clear solutions.<br>
It enables quick and reliable measurement to ensure the correct mixing ratio (e.g., 5% = 1:20), helping avoid excessive dilution or concentration.<br>
Ideal for long-term process stability, reduced coolant consumption, and minimized disposal costs.</p>
<h3>Technical Data:</h3>
<ul>
<li>Measuring range: 0 – 20%</li>
<li>Accuracy: ±0.2%</li>
<li>Standard reference temperature: 20 °C</li>
<li>Standard substance for calibration: distilled water</li>
</ul>
<h3>Instruction for Use:</h3>
<ol>
<li><strong>Set the scale:</strong> Use distilled water to calibrate the scale. Open the prism cover, apply one drop of distilled water at 20 °C, and view through the eyepiece. Adjust the screw until the horizontal and vertical lines intersect at 0%.</li>
<li><strong>Measure:</strong> Wipe the prism dry and apply a drop of the test sample. Close the prism cover and view the reading. Multiply the result by the specific refractometer index for your coolant type.</li>
</ol>
<p><strong>Note:</strong> Clean the prism after each use with cellulose or a soft cloth.</p>
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