MilliporeSigma
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1.19812

Supelco

Ammonium standard solution

traceable to SRM from NIST NH₄Cl in H₂O 1000 mg/l NH₄ Certipur®

Quality Level

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

Packaging

500 ml in Plastic bottle

Analysis Note

Concentration     β (NH₄⁺): 990 - 1010 mg/l
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.

Legal Information

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

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Certificate of Analysis

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Certificate of Quality

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