- NIST Traceable
- Temperature of Standardization 68°F/68°F
- Conform to ASTM Specifications
- Metal Ballast
- Individually Serialized
Ideal for determining the specific gravity of soil, meets ASTM specifications. Each hydrometer is calibrated in a triple accredited ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST. Individually packaged with a multi-language Statement of Accuracy indicating accuracy traceable to NIST.