Merck 119812 0500 Ammonium Standard Solution Traceable To Srm From Nist Nh4Cl in H2O 1000 Mg/L Nh4+ Certipur® 500 ML.

Merck 119812 0500 Ammonium Standard Solution Traceable To Srm From Nist Nh4Cl in H2O 1000 Mg/L Nh4+ Certipur® 500 ML.

Merck 119812 0500 Ammonium Standard Solution Traceable To Srm From Nist Nh4Cl in H2O 1000 Mg/L Nh4+ Certipur® 500 ML.

64,52€ ( KDV Dahil )

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

Stok kodu: 119812.0500 Kategoriler: , ,

Açıklama

Description
Catalogue Number 119812

Product Information
HS Code 2827 10 00
Quality Level MQ100

Physicochemical Information
Density 0.99 g/cm3 (20 °C)
pH value 5.4 (H₂O, 20 °C)

Safety Information according to GHS
Storage class 10 – 13 Other liquids and solids
WGK NWG not water endangering
Disposal 28
Aqueous solutions: Container D.

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

Specifications
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.

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