SH259B Fully‑Automatic Water‑Soluble Acid Tester Transformer Turbine Oil pH Detection Instrument The SH259B automatic water‑soluble acid tester is manufactured complying with GB/T7598‑2008, the test standard for water‑soluble acid in circulating transformer oil and turbine oil via colorimetric method, as well as GB/T 259 covering test practices for water‑soluble acid and alkali of petroleum goods. It serves mainly to measure water‑soluble acid content (pH value) inside
