Chromate standard solution

traceable to SRM of NIST K2CrO4 in H2O 1000 mg/l CrO4 Certipur®
Code:1.1978

Manufacturer: Merck
Trademark: Supelco

Hãng sản xuất: Merck

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Category: Standard Chemical Brand: Supelco

Description
Additional information

Analysis Note
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.
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

Hãng sản xuất	Merck

Chromate standard solution

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