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See Chinese contents: GB/T 35948-2018 GB/T 35948-2018: Determination of seven parabens in cosmetics -- High performance liquid chromatography
This Standard specifies the reagents and materials, apparatus, analytical procedures, result calculation, recovery and accuracy, admissible error, etc. for the determination of seven parabens in cosmetics using high performance liquid chromatography, including propylparaben, isopropylparaben, butylparaben, isobutylparaben, phenylparaben, benzylparaben and pentylparaben.
