Herzog HGT 915 & 917: Gum Test PAC
Measure evaporation residue in aviation fuels, motor gasolines, and other volatile distillates in accordance with ASTM D 381, ISO 6246, EN 5 and IP 131 test methods. The Herzog HGT 915 uses air evaporation, while the Herzog HGT 917 offers the versatility of either air or steam evaporation.