质量水平
技术
ion chromatography: suitable
pH值（酸碱度）
7 (20 °C in H2O)
密度
1.0 g/cm3 at 20 °C
应用
environmental
food and beverages
包装形式
single component solution
储存温度
15-25°C
分析说明
Concentration β (CrO₄²⁻): 990 - 1010 mg/l
Determination method: Iodometric titration.
The content of this solution was determined with sodium thiosulfate standard solution (article number 1.09147) standardized against volumetric standard potassium iodate (article number 1.02404). 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 136f (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard potassium iodate, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.
Determination method: Iodometric titration.
The content of this solution was determined with sodium thiosulfate standard solution (article number 1.09147) standardized against volumetric standard potassium iodate (article number 1.02404). 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 136f (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard potassium iodate, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.
其他说明
We now offer a certified reference material alternative for this product that has the same composition and is manufactured under ISO 17034 accreditation.
法律信息
CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
警示用语：
Danger
危险声明
危险分类
Carc. 1B Inhalation - Muta. 1B
储存分类代码
6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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