ISO 2271: Determination of Anionic Active Substance

The ISO 2271 standard includes manual or mechanical testing procedures for the determination of anionic active substance in Surfactants, Detergents and Disinfectants. Anionic surfactants are commonly found in laundry detergents, hand wash products, kitchen cleaners, body washes. They are the most effective and versatile surfactants in removing oily residue.

Surface active substances are classified according to their chemical structures as anionic, cationic, nonionic and amphoteric. It is a structure that contains cations such as sodium, potassium and ammonium, and the cations form the polar group of the molecule together with negatively charged groups such as carboxylate, sulfonate, sulfate, and phosphate. Anionic active substances form negatively charged ions when dissolved in water.

If the hydrophobic group in a surfactant is in the (-) charged group of the molecule, it is defined as an anionic surfactant.

ISO 2271: Surface active agents — Detergents — Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure

You can contact Nanolab Detergent Analysis Laboratory for Anionic Active Substance Determination in Surfactants, Disinfectants and Detergents.