All Aljac Fuelling hydrometers comply with BS718M50SP. A Certificate of Conformity is included with each instrument as standard, and a full UKAS Calibration Certificate (required when the instrument is used as a reference against which work tools are checked) is available at an additional cost.
Glass hydrometer
Diameter 65 mm,
Length 350 mm, without graduation.
Capacity 925ml.
Part number 0902000099.
Plastic hydrometer
Diameter 55 mm
Length 345 mm, transparent, with spout, graduated.
Capacity 500ml.
Part number 0902000098
Plastic hydrometer
Diameter 43mm,
Length 370 mm, opaque.
This device is filled to the brim with fuel and fuel may overflow onto the rim of the water collector. Thus, hydrometer readings are taken from the surface of the fuel, and not through glass or plastic, which avoids distortion of readings.
Capacity (full) 575 ml.
Part number 6002107300.