DURAC® SAFETYBLUE Precision Specific Gravity Combined Form Hydrometers - 1.200/1.420 - 50935

Organic performance liquid, individual serial numbers and wax paraffin and steel shot. Each hydrometer conforms to the accuracy requirements for ASTM thermo-hydrometers. 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 our exclusive triple accredited/registered ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST and DKD/PTB. Made in the USA. Thermometer Range of 0/150°F, 381mm in Length. Temperature of standardization 60°F/60°F.