1.19898

Phosphate standard solution

traceable to SRM from NIST KH₂PO₄ in H₂O 1000 mg/l PO₄ Certipur^®

• Synonyma: Phosphate standard for aqueous matrices ready for use
• NACRES: NA.24
• UNSPSC Code: 41116107

Vlastnosti

• Název produktu: Phosphate standard solution, traceable to SRM from NIST KH₂PO₄ in H₂O 1000 mg/l PO₄ Certipur^®
• technique(s): ion chromatography: suitable
• density: 0.998 g/cm³ at 20 °C
• application(s): environmental; food and beverages
• format: single component solution
• storage temp.: 15-25°C
• Quality Level: 100

Popis

Analysis Note

Concentration     β (PO₄³⁻): 990 - 1010 mg/l
Determination method: Alkalimetric titration.
The content of this solution was determined with sodium hydoxide standard solution (article number 1.09141) standardized against volumetric standard potassium hydrogen phthalate (article number 1.02400). The expanded measurement uncertainty is ± 0.4 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 84L (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard potassium hydrogen phthalate, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.

Other Notes

We now offer a certified reference material alternative for this product that has the same composition and is manufactured under ISO 17034 accreditation.

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Bezpečnostní informace

• Skladovací třída: 12 - Non Combustible Liquids
• wgk: nwg