For chemical solutions, or other liquids, our specific gravity hydrometers provide accurate and reliable measurement results. The easy-to-read scales are clearly marked for quick and precise readings, and the included thermometer ensures accurate temperature compensation. With a wide range of models available, you can find the perfect specific gravity hydrometer for your scientific testing needs. Trust in the quality and precision of our ASTM Specific Gravity Hydrometers for all your laboratory and industrial applications.  NOTE: Hydrometers available in 6" or 12" length.