API Plain Form, 330mm

API ASTM 1H Specific Gravity Hydrometer, Range of -1 to 11°, Plain Form, without a thermometer. Scale standardized at 60° F. Scale subdivisions at 0.1° Length, 330mm (13").

API ASTM 2H Specific Gravity Hydrometer, Range of 9 to 21°, Plain Form, without a thermometer. Scale standardized at 60° F. Scale subdivisions at 0.1° Length, 330mm (13").

API ASTM 4H Specific Gravity Hydrometer, Range of 29 to 41°, Plain Form, without a thermometer. Scale standardized at 60° F. Scale subdivisions at 0.1° Length, 330mm (13").

API ASTM 6H Specific Gravity Hydrometer, Range of 49 to 61°, Plain Form, without a thermometer. Scale standardized at 60° F. Scale subdivisions at 0.1° Length, 330mm (13").

API ASTM 8H Specific Gravity Hydrometer, Range of 69 to 81°, Plain Form, without a thermometer. Scale standardized at 60° F. Scale subdivisions at 0.1° Length, 330mm (13").