1067 NTERNATIONAL STANDARD (TSO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXKIYHAPOAHA OPTAHM3AIH HO CTAHIAPTH3ALIHM·ORGANISATION INTERNATIONALE DE NORMALISATION Analysis of soaps --- Determination of unsaponifiable, unsaponified and unsaponified saponifiable matter Analyse des savons -- Détermination de la teneur en matieres insaponifiables, en matieres insaponifiees et en matieres saponifiables insaponifiees First edition - 1974-06-15 AUN 6 -- 1974 ISU 1067-1974 (E) UDC 661.185 : 543.855/.86 Ref. No. ISO 1067-1974 (E) Descriptors : soaps, surfactants, chemical analysis, determination of content, saponification. Price based on 2 pages Copyright International Organization for Standardization Isefrom IHS Not for Resale FOREWORD Iso (the International Organization for Standardization) is a worldwide federation of national standards institutes (Iso Member Bodies). The work of developing International Standards is carried out through IsO Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with Iso, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the ISo Council. as Iso Recommendations; these documents are now in the process of being transformed into International Standards. As part of this process, Technical Committee ISO/TC 91 has reviewed ISO Recommendation R 1067 and found it suitable for transformation. International Standard ISO 1067 therefore replaces IS0 Recommendation R 1067-1969. following countries : Austria Portugal India Belgium Iran Romania Canada Ireland South Africa, Rep. of Chite Israel Spain Czechoslovakia Japan Sweden Egypt, Arab Rep. of. Korea, Rep. of Switzerland Nethertands France Turkey Germany New Zealand United Kingdom Hungary Poland Yugoslavia No Member Body expressed disapproval of the Recommendation. The Member Body of the following country disapproved the transformation of ISO/R 1067 into an International Standard : United Kingdom @ International Organization for Standardization, 1974 Printed in Switzerland Copyright International Organization for Standardization Not for Resale ISO 1067-1974 (E) INTERNATIONAL STANDARD Analysis of soaps -- Determination of unsaponifiable, unsaponified and unsaponified saponifiable matter 1 SCOPE 5 APPARATUS This International Standard specifies a method for the Ordinary laboratory apparatus and, in particular : determination of thecontentsof unsaponifiable, unsaponified and unsaponified saponifiable matter in 5.1 Beaker, 250 ml. commercial soaps, excluding compound products. 5.2 Separating funnels, 50 ml and 250 ml. 2 FIELD OF APPLICATION flasks, 5.3 Round-bottomed 100 ml and 250 ml, This method is applicable to the determination of the complying with ISO/R 1773. contents of products, other than free fatty acids, which are soluble in hexane or light petroleum (unsaponifiable + 5.4 Microburette, 2 ml. and which can be saponified unsaponified matter), (unsaponified saponifiable matter). 5.5 Pipette, 10 ml, complying with ISO/R 648. The method is not applicable to soaps enriched with sterols or long chain alcohols, nor to soaps containing perfume. 5.6 Oven, capable of being controlled at 103 ± 2 °c. 3 PRINCIPLE Extraction of matter soluble in hexane, and titration of the 6 SAMPLING free fatty acids removed, with potassium hydroxide The laboratory sample of soap shall be prepared and stored solution. in accordance with the instructions. given in IsO.. Saponification of products soluble in hexane neutralized in Soaps - Sampling. 1) this way and extraction of the unsaponifiable matter by hexane. 7 PROCEDURE 4 REAGENTS 7.1 Test portion The water used shall be distilled water or water of equivalent purity. The reagents shall have the foilowing