ANNEX VIIITEST METHODS AND ANALYTICAL METHODS

4.Preliminary treatment of anionic surfactants to be tested

4.3.Chemicals and equipment

4.3.3.Isopropanol/water mixture (50/50 v/v):

  • 50 parts by volume isopropanol, CH3CHOH.CH3, and

  • 50 parts by volume water (4.3.1)