Merck 119811 0500 Nitrate Standard Solution Traceable To Srm From Nist Nano3 in H2O 1000 Mg/L No3- Certipur® 500 ML.

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Description
Catalogue Number	119811
Synonyms	Nitrate standard for aqueous matrices ready for use

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Product Information
HS Code	2834 29 80
Quality Level	MQ100

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Physicochemical Information
Density	1.00 g/cm3 (20 °C)
pH value	6 (H₂O, 20 °C)

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Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids
WGK	NWG not water endangering

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Storage and Shipping Information
Storage	Store at +15°C to +25°C.

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Specifications
Concentration     β (NO₃⁻)	990 - 1010 mg/l
Determination method:   Alkalimetric titration.\nThe 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.