Crackle Test Reference Standard: 0.5 wt% H2O

These standards are intended for use in the determination of water in oil. All values are nominal, and are certified by gravimetric preparation. The crackle test is a visual test performed by placing a small drop of oil onto a hot plate (usually around 300ºF). The amount of water present in oil samples is estimated by comparison to these standards. Matrix: 10W30 Motor Oil.