Parameters Mean ± SD Range of values (Min – Max ) Limits of Int’l Standards Samples outside the Limits  of International Std.
pH 4.08 ± 0.41 3.50 – 4.90 No fixed limit
Conductivity (mS/cm) 0.15 ± 0.09 0.05 – 0.41 Not > 0.8 mS/cm
Free acidity (meq/kg) 23.00 ± 6.20 13.00 – 33.60 Not > 50 meq/kg
Lactose acidity (mg/g) 2.28 ± 0.89 1.16 – 4.63 No fixed limit
Total acidity (mg/kg) 25.17 ± 6.86 14.25 – 36.67 No fixed limit
HMF (mg/kg) 11.73 ± 3.97 5.99 – 17.22 Not > 40 mg/kg
Diastase activity (Schade unit) 9.37 ± 1.38 8.00 – 13.00 Not < 8 Schade unit
Table 2: Physicochemical parameters of eighteen (18) honey samples from Northeastern Nigeria.