PUFER OTOPINA PH4,01/6,87 PK/2X30AMPX20ML

Standard solutions acc. to DIN 19266 for calibration in pH measurement. Buffer solutions in the double-end ampoules offer a particularly high degree of reliability and measuring accuracy.

• Hot steam sterilised, very long shelf life
• Without preservatives
• With manufacturer certificate
• 20 ml ampoules with approx. 17 ml content