Bufferkoncentreret opløsning BS pH 4,00 (phtalat), standard for pH-måling, Fisher Chemical

Buffer koncentreret opløsning pH10 (borat), Fisher Chemical

Buffer koncentreret opløsning pH 2,00 (glycin), NIST Standard for pH-måling, Fisher Chemical™

Buffer Concentrated Solution pH9.2 (Borate), NIST Standard for pH measurement, Fisher Chemical™

MDL nummer: 163147

Buffer koncentreret opløsning pH 4 (phthalat)

Bufferkoncentreret opløsning BS pH 6,87 (fosfat), standard for pH-måling, Fisher Chemical

Bufferkoncentreret opløsning pH 8,00 (borat), NIST Standard for pH-måling, Fisher Chemical™

MDL nummer: 163147

Buffer Concentrated Solution pH7.00 (Phosphate), NIST Standard for pH measurement, Fisher Chemical

Bufferfarvekodet koncentreret opløsning pH7,00 (fosfat) gul, NIST Standard for pH-måling, Fisher Chemical™

MDL nummer: 81857

Buffer Colour Coded Concentrated Solution pH10.00 (Borate) Blue, NIST Standard for pH measurement, Fisher Chemical™