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Reference Standards

Reference Standards

Our Organic Analytical Reference Standards are selected for long term stability and are not subject to ambient influences. They are intended for daily routine use as certified working standards which are referenced back to traceable internationally recognised standards.  The uncertainty of the certified value is expressed as expanded uncertainty, U, at 95 per cent confidence and is calculated in accordance with ISO IEC17025 according to GUM (Guidelines to Uncertainty in Measurement).


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C=94.34%,H=5.66%.

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