Thomas Durac API ASTM Hydrometer, 0 to 6 degree API Range, 163mm Length
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<b>[Product Information]</b><br>
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<li>Conform to the accuracy requirements for ASTM hydrometers, are individually serialized</li>
<li>Individually serialized, feature readings in 0.1 divisions and feature a metal ballast</li>
<li>Hydrometers include multi-language</li>
<li>0.1 degree API Accuracy</li>
<li>Temperature of standardization 60/60 degree F</li>
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