BS 718 Series M50SP Hydrometer at 15 °C with Works Certificate Density Range: 1.000 to 1.050 - 12431/09Y

Seta Glass Hydrometers conform to ASTM - IP or BS specifications for determining the Relative Density, Specific or API Gravity of crude or liquid petroleum products. Manufactured from sodalime-silicate glass with a linear coefficient expansion of 9.2 x 10 6, they are shot-poised, and calibrated for use in liquids of LOW surface tension (15 to 34 dynes/cm).