Durac API Hydrometer
Manufacturer: Bel-Art Products
These plain form hydrometers measure the relative density (specific gravity) of oil and petroleum related products in various ranges from -1° to 90°API in accordance with American Petroleum Institute (API) standards. 166mm (6.6") long. Lead free ballast and glass. Individually serialized. Temperature standardization: 60°F (15°C). Hand inspected by our U.S. quality team. Packaged with a multi-language (English, French, German, Italian, Portuguese,and Spanish) Statement of Accuracy indicating accuracy traceable to NIST.