Standard pH solutions prepared in Japan using JIS standards. Necessary for calibration of pH meters and proof checking of solutions. Available in 5 different pH concentrations as stated below.
1. Oxalate pH standard solution (JIS K 0018) - pH 1.68
2. Phthalate pH standard solution (JIS K 0019) - pH 4.01
3. Neutral phosphate pH standard solution (JIS K 0020) - pH 6.86
4. Borate pH standard solution (JIS K 0021) - pH 9.18
5. Carbonate pH standard solution (JIS K 0022) - pH 10.02
Alat laboratorium umum