Abstract
The method consists in extracting of the natural colouring matter content with acetone, measuring of the absorbance of the solution obtained using a spectrometer at a wavelength of 460 nm.
General information
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Status: WithdrawnPublication date: 1989-12Stage: Withdrawal of International Standard [95.99]
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Edition: 1Number of pages: 3
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Technical Committee :ISO/TC 34/SC 7ICS :67.220.10
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Life cycle
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Now
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Revised by
PublishedISO 7541:2020