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Certificate of AnalysisSample: multi-component organic COAAccreditationCompounds assembled into a standard based onmethod requirements and customer formulationrequest - but all reviewed for solubilty andcoelution potential prior to manufacture.CAS Number toeasily identifycompoundWe use only highpurity startingmaterial.Concentration calculated by using thepurity of the starting materialNIST TracebilityUncertainty ValuesThe uncertainty values as stated on our Certificate of Analysis have been determined using theEURACHEM/CITAC Guide (Quantifying Uncertainty in Analytical Measurement). We have evaluatedboth Type A (based on a series of observations) and Type B (manufacturers specifications and calibrationdata) factors and report a combined expanded uncertainty.Although uncertainty relates to the general concept of doubt, uncertainty of measurement doesnot imply doubt about the validity of a measurement, but rather increased confidence in the validityof a measurement result. Uncertainty takes the form of a range and cannot be used to correct ameasurement result. The uncertainty of the result should never be interpreted as representing the erroritself, or the error remaining after correction.QC management approvalTel. 800-442-5290 / 203-786-5290 • Fax 203-786-5287 • AccuStandard.comvii