H-B DURAC Individually Calibrated 29/41 Degree API ASTM 4H Hydrometer (B61898-0100)
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<b>[Product Information]</b><br>
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<li>Conforms to the accuracy requirements of ASTM hydrometers; ASTM No. 4H</li>
<li>Calibrated traceable to NIST standards at three points; supplied with a detailed calibration report stating corrections to one-tenth of the smallest division</li>
<li>Measures the relative density (specific gravity) of oil and petroleum related products in accordance with the API and ASTM E100 standards; Range: 29/41 degrees</li>
<li>Individually serialized; lead free ballast and glass</li>
<li>Packaged in a recyclable, deluxe storage box; Former HB # 4H-FC</li>
<li>Conforms to the accuracy requirements of ASTM hydrometers; ASTM No. 4H</li>
<li>Calibrated traceable to NIST standards at three points; supplied with a detailed calibration report stating corrections to one-tenth of the smallest division</li>
</ul>
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