Nitrate standard solution ยี่ห้อ Sigma

DESCRIPTION

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.

Other Notes

We now offer a certified reference material alternative for this product that has the same composition and is manufactured under ISO 17034 accreditation.

Legal Information

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

SAFETY INFORMATION

Storage Class Code

12 - Non Combustible Liquids

WGK

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