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JCTLM Database: higher-order reference materials, methods and services

Details : CYC_II_L_I_RM_03 - Potassium standard solution

Type (acronym)rm
Typereference material
Unique Nomination NumberCYC_II_L_I_RM_03
Analyte Namepotassium
IUPAC IFCC NumberCAS7440-09-7
List I or IIList I
Traceable to SIYes
Applicable Matrices1% nitric acid solution
Identifier NumberSRM 3141a
NamePotassium standard solution
Expiry Date1/31/2027 12:00:00 AM
Certifying OrganizationNIST
Mode Approach used for Value AssignmentGravimetric and purity
Commentsprimary reference for calibration
Issued by NMI with Certificateyes
QuantityMass fraction
From (0)9
To (0)11
Unit (0)mg/g
From (1)0.01
To (1)0.04
Unit (1)mg/g
Level of Confidence (%)95 %
Physical Form of RM Matrixsolution
Expression of UncertaintyGUM Compliant
Additional CommentsPrepared from SRM 999a, potassium chloride (assay)
How to Obtain Certificatehttp://patapsco.nist.gov/srmcatalog/certificates/view_cert2gif.cfm?certificate=3141a
Does RM Value Assignment Traceability Meet RequirementsYes
Recommended for Publication in the JCTLM ListYes
Review Team Nameelectrolytes
Published CRM ISO ComplianceFalse
Organization AcronymNIST
Organization NameNational Institute of Standards and Technology
Organization Websitehttp://www.nist.gov/srm
Organization Country ISO CodeUS
Organization Country NameUnited States
Analyte Category NameElectrolytes