1.19898
Phosphate standard solution
traceable to SRM from NIST KH2PO4 in H2O 1000 mg/l PO4 Certipur®
Synonyme(s) :
Phosphate standard for aqueous matrices ready for use
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A propos de cet article
NACRES:
NA.24
UNSPSC Code:
41116107
eCl@ss:
25140904
Service technique
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technique(s)
chromatography: suitable, 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
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.
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
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