Quartz Hydrometer Calibration Weight， for Lab Testing | 5g to 100g range.(50g(±0.3g))

- Precision quartz s construction ensures stable density and resistance for repeated lab use.
- Covers a 5g to 100g range with ±0.1 to ±0.5g accuracy, suitable for calibrating liquid hydrometers.
- Smooth, non-porous surface resists liquid absorption and , maintaining measurement integrity.
- Compact single-piece devise fits standard hydrometer test jars and storage cases for easy handling.
- Ideal for educational labs, industrial control, and home hydrometer calibration needs.