ISO 7358:2002
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Oils of bergamot, lemon, citron and lime, fully or partially reduced in bergapten Determination of bergapten content by high-pressure liquid chromatography (HPLC)
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07-16-2021
English, French
11-05-2002
ISO 7358 specifies a high-pressure liquid chromatographic (HPLC) method, using either an internal standard or external standard, for the determination of the bergapten content in oil of bergamot [Citrus aurantium ssp bergamia (Risso et Poit.) Wight et Arn. ex Engl.], in oil of lemon [Citrus limon (L.) Burm. f.], in oil of citron (Citrus bigaradia Risso), and in oil of lime [Citrus aurantifolia (Christm.) Swingle and Citrus latifolia Tanaka], all of them fully or partially reduced in bergapten.
For essential oils having a bergapten content greater than or equal to a mass fraction of 1 %, the internal standard method is applicable.
For essential oils having a bergapten content from a mass fraction of 0,1 % to 1 %, the external standard method is applicable.
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