LABO API Combined Hydrometer 19/31, 40/60, 30/90, 49/61, 60/90, 30/50; Thermometer 0-150F (30/50)

LABO API Combined Hydrometer, 19/31, 40/60, 30/90, 49/61, 60/90, 30/50, 9/21, 39/51 Thermometer Range: 0-150F What is API Hydrometer? API hydrometers have multiple ranges that are precision grade for measuring API gravity of crude oil and other petroleum products. LABO Techonology offers all ranges that comply with API (American Petroleum Institute and The American Society of Testing Materials (ASTM) E100 standards, from -1 degrees to 96 degrees. Made in China or USA. API Hydrometers are calibrated at 3 API points: Low, Middle, High

• API Variations: 9/31, 40/60, 30/90, 49/61, 60/90, 30/50, 9/21, 39/51
• Division: 0.2
• Combined form thermohydrometer which is not only a hydrometer to read density, but also contains a thermometer with range from 0 to 150 F
• Clear easy to read double scales routinely used for determining the gravity of crude oil and other liquid petroleum products. Hydrometers are 15" long
• For instruction on use, please reference The API Manual of Petroleum Measurement Stands (MPMS), Chapter 9 - "Standard Test Method for Density, Relative Density, and API Gravity of Crude Petroleum and Liquid Petroleum Products by Thermohydrometer Method", or visit our website for details