A test portion is desulfonated in concentrated phosphoric acid medium and the liberated alkylbenzene is extracted with light petroleum. The mean relative molecular mass of the extracted alkylbenzene is determined chromatograhically. The mean relative molecular mass of the alkylbenzenesulfonate is calculated.
OBJAVLJEN
ISO 6841:1988
PROJEKAT
ISO/DIS 6841
40.20
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20. 4. 2026.
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