pH ≈6 500ml
pH=6.5±0.02(25℃) 500ml
pH=6.00±0.02(25℃) 500ml
pH=8.00±0.02(25℃) 500ml
pH = 9.21 ± 0.02(25℃) 500ml
pH = 9.18±0.02 (25℃) 500ml
pH = 9.184(25℃) 500ml
pH = 10.00 ± 0.02(25℃) 500ml
pH = 11.00 ± 0.02(20℃) 500ml
pH=12.45±0.05(25℃) 500ml