Vee Gee Scientific* API, ASTM Hydrometer with SafetyBLUE Thermometer

The API Scale was selected in 1921 by the American Petroleum Institute (API), the U.S. Bureau of Mines, and the National Institute of Standards and Technology (NIST) as the standard hydrometer scale for petroleum products.

The thermometer scale for Vee Gee Hydrometers (w/ Thermometers) is located in the body. A correction scale for conversion of readings to 60°F is printed opposite the temperature scale.

• Calibrated at 60°F
• Hydrometer Subdivision: 0.1°
• Thermometer Scale: 0 to +150°F
• Thermometer Subdivision: 2.0°F

Optional Accessories (sold separately):
• PVC Hydrometer Case, 16.5 in. (Spectrum Cat. No. 352-10030)
• Certification Traceable to NIST (Spectrum Cat. No. 350-45652)

Note NIST Certification must be ordered at the same time as the hydrometer.
Image(s) are representative of the product group and not necessarily the individual product.
Image(s) are representative of the product group and not necessarily the individual product.

API Range ( DEG ): -1 to 11 DEG
ASTM: 51
Subdivision: 0.1 DEG
Length (MM): 380

API Range ( DEG ): 9 to 21 DEG
ASTM: 52
Subdivision: 0.1 DEG
Length (MM): 380

API Range ( DEG ): 19 to 31 DEG
ASTM: 53
Subdivision: 0.1 DEG
Length (MM): 380

API Range ( DEG ): 29 to41 DEG
ASTM: 54
Subdivision: 0.1 DEG
Length (MM): 380

API Range ( DEG ): 39 to 51 DEG
ASTM: 55
Subdivision: 0.1 DEG
Length (MM): 380

API Range ( DEG ): 59 to 71 DEG
ASTM: 57
Subdivision: 0.1 DEG
Length (MM): 380