... /m) ,≥27.527.527.5H2SO4% (m/m) ,≤0.040.050.08Evaporation residue (m/m) ,%0.080.100.18Stability, %97.097.093.0Specification50 ... .0% minFirstclassSecond classExcellent classH2O2 (m/m) ,≥50.050.050 ... .0H2SO4% (m/m) , ≤0.040.060.12Evaporation residue (m/m) ,%0.080.120.20Stability, %97.097.093.0Application ...