Hydrometers are individually serialized and feature a metal ballast. Hydrometers include multi-language (English, French, German, Italian, Portuguese and Spanish) Statement of Accuracy indicating accuracy traceable to NIST and DKD/PTB. Tested and calibrated in an exclusive triple accredited/registered ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST and DKD/PTB. Temperature of Standardization 60°F/60°F.
6025C75 to 6025C59 are for liquids heavier than water.
6025C31 to 6025C51 are for liquids lighter than water.
Please note: The aforementioned A2LA accreditation belongs to the manufacturer, not Thomas Scientific.