SH108A Automatic Oil Acid Value Tester GB/T4945 Auto‑Titration Analyzer LCD Display Printing SH108A auto‑operated acid value tester complies with PRC national standards GB/T 264 “Determination of Acid Value for Petroleum Products”, GB7599, GB/T4945, alongside ASTM D974 and GB7299 specifications. This unit comes with a large‑size colour LCD screen and Chinese‑language menu, with physical keyless controls. Built‑in microchip enables hands‑off measurement and printout functions.