1.19899

Nitrite standard solution

traceable to SRM from NIST NaNO₂ in H₂O 1000 mg/l NO₂ Certipur^®

• Sinônimo(s): Nitrite standard for aqueous matrices ready foruse
• Código UNSPSC: 41116107
• NACRES: NA.24

Propriedades

• Nível de qualidade: 100
• técnica(s): ion chromatography: suitable
• pH: 7 (20 °C in H₂O)
• aplicação(ões): environmental; food and beverages
• Formato: single component solution
• temperatura de armazenamento: 15-25°C

Descrição

Nota de análise

Concentration     β (NO₂⁻): 990 - 1010 mg/l
Determination method: Cerimetric titration.
The content of this solution was determined by back-titration with Ammonium(II) ferrous sulfate (article number 1.03792) standardized by Cerium(IV) sulfate (article number 1.09092) against volumetric standard Iron(II)ethylendiammonium sulfate (article number 1.02402). The expanded measurement uncertainty is ± 0.7 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 8040 (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard Iron(II)ethylendiammonium sulfate measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.

Informações legais

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

Informações de segurança

• Código de classe de armazenamento: 12 - Non Combustible Liquids
• Classe de risco de água (WGK): WGK 2
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable