- Density: ~ 1,00 g/cm3
- Solub. in water: (20 ºC): miscible
- Tariff number: 3822 00 00 00
- Applications: This reference material is intended for the calibration of pH meters and electrodes used for pH measurement or as a control sample for measuring the pH value.
SPECIFICATIONS
pH at 20 ºC: 4,01
specification range: 4,00 - 4,02
uncertainty : ± 0,01
Composition per litre is 10,3 g Potassium hydrogen phthalate. Contains preservative.
Standard buffer solutions are prepared using gravimetric and volumetric procedures. The batch value is determined by measurement with a combination glass electrode against five-point calibration according to DIN 19268. This pH buffer solution is traceable to Standard Reference Material from NIST.
0: 4,00
5: 4,00
10: 4,00
15: 4,00
20: 4,01
25: 4,01
30: 4,02
35: 4,02
40: 4,03
45: 4,05
50: 4,05
Codice | Volume | Disponibilità | Prezzo netto | ||
---|---|---|---|---|---|
SO10050250 | x 250 ml | Acquista | |||
SO10051000 | x 1 l | Acquista |
Via Massimo D’Azeglio 20- 26900 LODI (LO)
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