Solución tampón pH = 9,00 (20 °C) (Ácido bórico/Potasio cloruro/Sodio hidróxido)
| Confezionamento | Codice | Disponiblita Spagna | Disponibilità Italia | Prezzo prodotto |
|---|---|---|---|---|
| x 250 ml :: Botella de plástico | SO10090250 | Disponibile  |
0 - contatta i ns.uffici | Acquista |
Altri confezionamenti
| Confezionamento | Codice | Disponiblita Spagna | Disponibilità Italia | Prezzo prodotto |
|---|---|---|---|---|
| x 1 l :: Botella de plástico | SO10091000 | Acquista |
- Density: ~ 1,00 g/cm3 r- Solub. in water: (20 ºC): miscibler- Tariff number: 3822 90 00 00r- 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.rrSPECIFICATIONSrpH at 20 ºC: 9,00rspecification range: 8,99 - 9,01runcertainty : ± 0,01rComposition per litre is 3,1g Boric Acid, 3,8g Potassium chloride and 0,8g Sodium hydroxide rrStandard 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. r0: 9,24r5: 9,16r10: 9,11r15: 9,05r20: 9,00r25: 8,95r30: 8,91r35: 8,88r40: 8,85r45: 8,82r50: 8,79r
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