1.19812
Ammonium standard solution
traceable to SRM from NIST NH4Cl in H2O 1000 mg/l NH4 Certipur®
Synonym(s):
NH₄ Standard Solution
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About This Item
Product Name
Ammonium standard solution, traceable to SRM from NIST NH4Cl in H2O 1000 mg/l NH4 Certipur®
technique(s)
ion chromatography: suitable
pH
5.4 (20 °C in H2O)
density
0.99 g/cm3 at 20 °C
application(s)
environmental
food and beverages
format
single component solution
storage temp.
15-25°C
Quality Level
Analysis Note
Determination method: Argentometric titration.
The content of this solution was determined with silver nitrate standard solution (article number 1.09081) standardized against volumetric standard sodium chloride (article number 1.02406). 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 999b (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard sodium chloride, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.
Other Notes
Legal Information
Storage Class
12 - Non Combustible Liquids
wgk
nwg
Certificates of Analysis (COA)
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Protocols
Monochloramine용 표준용액 조제.
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