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Certified reference materials (CRMs) manufactured and QC-tested in ISO-accredited labs satisfy your ISO requirements.
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Catalog #Conc. In Solvent And VolumeUnits
31687
200 μg/mL each in methanol:methylene chloride (80:20) (3-methylphenol and 4-methylphenol at 100 μg/mL), 5 mL/ampul
ea.
31687.15
200 μg/mL each in methanol:methylene chloride (80:20) (3-methylphenol and 4-methylphenol at 100 μg/mL), 5 mL/ampul
15-pk.
33073
200 μg/mL each in methanol:methylene chloride (80:20) (3-methylphenol and 4-methylphenol at 100 μg/mL), 10 mL/ampul
ea.