1.19811

Nitrate standard solution

traceable to SRM from NIST NaNO₃ in H₂O 1000 mg/l NO₃ Certipur^®

• Synonym(s): Nitrate standard for aqueous matrices ready for use

Properties

• Quality Level: 100
• technique(s): ion chromatography: suitable
• pH: 6 (20 °C in H₂O)
• density: 1.00 g/cm³ at 20 °C
• application(s): environmental; food and beverages
• format: single component solution
• storage temp.: 15-25°C

Description

Packaging

500 , 500 ml

Analysis Note

Concentration     β (NO₃⁻): 990 - 1010 mg/l
Determination method:   Alkalimetric titration.
The content of this solution was determined with sodium hydroxid standard solution 0.1 mol/l .The sodium hydroxide standard solution 0.1 mol/l is adjusted by hydrochloric acid standard solution 0.1 mol/L.The hydrochloric acid standard solution is standardized and traceable to volumetric standard tris(hydroxymethyl)aminomethane (article number 1.02408). The expanded measurement uncertainty is ± 1 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 723 (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard tris(hydroxymethyl)aminomethane, 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

Safety Information

• Storage Class Code: 12 - Non Combustible Liquids
• WGK: nwg