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

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

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Ammonium Standard Solution traceable to SRM from NIST 1.00 mg/L NH₄-N in H₂O

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application(s)

environmental
food and beverages

application(s)

-

application(s)

-

application(s)

-

format

single component solution

format

-

format

single component solution

format

single component solution

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

pH

5.4 (20 °C in H2O)

pH

4.7 ( in H2O)

pH

-

pH

-

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


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Protocols

Analytical Method: Analytical Quality Assurance, Standard for Monochloramine

Preparation of a standard solution for Monochloramine.

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