Plastic hydrometers are fabricated from polycarbonate (PC) which makes the
instrument shatterproof, while offering glass-like clarity for ease of reading.
All models are plain forms, so a separate thermometer should be used to
measure the temperature of the sample and correct for any temperature
variations. Temperature standard is 60°F, Length 300mm. The plastic
hydrometers are made for Specific Gravity, Baumé, Sugar Brix, and Salt-Brine scales.