H-B DURAC Safety 79/91 Degree API Combined Form Thermo-Hydrometer (B61823-0800)
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<b>[Product Information]</b><br>
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<li>Conforms to the accuracy requirements for ASTM thermo-hydrometers</li>
<li>Combined-form; measures the relative density (specific gravity) of oil and petroleum related products in accordance with American Petroleum Institute (API) standards; Range: 79/91 degrees</li>
<li>Built-in thermometer contains mercury-free blue spirit organic liquid fill; Range: 0/150 degrees F</li>
<li>Individually serialized; lead free ballast and glass</li>
<li>Packaged with a multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy indicating accuracy traceable to NIST; Former HB Instrument # 4870</li>
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