Buffer solutions

Osmolality Standards for calibration and control, compatible with all types of osmometers. Extensive range: 50 to 3000 mOsmol/kg H ₂O, ISO 17025 certified. Values from 100 to 700 mOsmol/kg H ₂O according to European Pharmacopoeia 2.2.35 and US Pharmacopeia 785. 12 ampoules of 5 ml each....

Colour coded. pH values at 25°C. Provided with label that gives the pH value at different temperatures. Supplied in 250ml containers. Tolerance ± 0.02 pH....

For calibration of 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

Without colour coding, hot steam sterilized. Stated pH values at 25 °C. Available in 250 ml containers. Shelf life approx. 2 years, accuracy ±0.02 pH....

pH 7. In a HDPE bottle....

Ready-to-use. pH 4, 7 and 9. pH values at 25 °C. Tolerance ± 0.02 pH....

For accurate and reproducible calibration of pH meters and pH electrodes.

• Colour-coded
• NIST™-traceable standard reference materials
• Bottles of 475 ml

With test certificate acc. to EN 10204-2.3....

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According to Directive 67/548/EEC or Directive 1999/45/EC. Bottles of 480 ml....