Buffer solutions, pH 4,00
Buffer solution, 4,00, ±0,02, 20 °C, 250 mL
Buffer solutions contain citric acid 1 H₂O (11,768 g); sodium hydroxide 50% (6 ml); hydrochlorid acid 35% (3,96 ml); preservative 1% (5 ml) and water (1 l).
- pH (25 to 40 °C): 4,00 +0,01
- pH (20 °C): 4,00 ±0,02
- pH (15 °C): 4,00 +0,01
- pH (10 °C): 4,00 +0,02
- pH (5 °C): 4,00 +0,04
- pH (0 °C): 4,00 +0,05
Certifications: NIIST traceable.
Documents
- VPE:250 mL
- Referentietemperatuur:20 °C
- Omschrijving:Buffer solution
- pH-nauwkeurigheid:±0,02
- pH-waarde:4,00
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