ASTM Density Hydrometers
Graduated in kilograms per liter @ 15 °C (Kg/M3)
Developed jointly with ISO (International Standards Organization) standards to serve those users involved in the international transport of petroleum products, this series has been adopted by ASTM and their use sanctioned as the metric standard for petroleum hydrometers. Graduated in Kg/M3 (Kilograms per cubic meter) @ 15 °C for petroleum products.