PRODUCT: VOC standard 4-Bromofluorobenzene 2000ug/ml in Methanol
MATRIX: Methanol

PREPARATION OF STANDARD:

All standard components have been pre-qualified/verified before use. All preparation has been performed in a cleanroom environment under strictly monitored and controlled conditions. All analytical measuring devices and instrumentation have been pre-calibrated. The actual concentrations reported below are based on this preparation methodology and compound impurities.

The expanded uncertainty (k=2) due to weighing, volumetric preparation and homogeneity is calculated in compliance with EURACHEM/CITAC Guide: Quantifying Uncertainty in Analytical Measurements as ± 2.5%.

TRACEABILITY IN THE PRODUCTION OF THIS STANDARD

Thisproductwaspreparedgravimetricallyonaweight/volumebasis.Thesolutewasweighedonabalance calibratedbyReageconengineersusingOIMLtraceableweights.ReageconholdsISO17025accreditation for calibration of non-automatic weighing machines (265C). The resulting Balance Certificate of CalibrationwasissuedinaccordancewiththerequirementsofISO/IEC17025.Thebalancewascalibrated under monitored environmental conditions and atmospheric pressure. Tests were performed for capacity, readability, repeatability, eccentricity and linearity. Dilution of the final product to volume was performed using internally calibrated Class A volumetricglassware.

STORAGE/USAGE INSTRUCTIONS:

Please store this product in a freezer (-15ºC). To open product, invert at least 10 times (do not shake) and sonicate if solid material is apparent. Break the ampoule open at the lower neck mark (caution: sharp glass) and transfer to vial. Allow to return to room temperature before use. Store after opening in a freezer. Invert, sonicateandallowvialtoreturntoroomtemperaturebeforeeachsubsequentuse.UseonlyClassAvolumetric glassware for dilutions and ensuring thoroughmixing.

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