6837 International Standard (TSO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXAYHAPOAHAA OPFAHM3AUMA HO CTAHAAPTW3ALWW+ORGANISATION INTERNATIONALE DE NORMALISATION ANst Inermt Doc sect Surface active agents -- Water dispersing power in dry cleaning solvents Agents de surface -- Pouvoir de dispersion d'eau dans les solvants de nettoyage a sec First edition -- 1982-12-01 80V 23 1002 UDC 661.185 : 620.1 : 541.182.023 Ref.No. 1SO 6837-1982 (E) Descriptors : surfactants, tests, determination, emulsifying power, water, solvents, detergents. for Standardizatior Price based on 5 pages No reproduction or networking permitted without license from 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 Inter- national 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 technicai committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. International Standard IS0 6837 was developed by Technical Committee ISO/TC 91, Surface active agents, and was circulated to the member bodies in November 1981. It has been approved by the member bodies of the foillowing countries: Australia Hungary Romania Austria Ireland South Africa. Rep. of Belgium Japan Spain China Korea Rep.of Switzerland Egypt, Arab Rep. of Mexico USSR France Netherlands Germany, F.R. Poland No member body expressed disapproval of the document. This International Standard has also been approved by the International Union of Pure and Applied Chemistry (IUPAC). International Organization for Standardization, 1982 Printed in Switzerland Copyright International Organization for Standardization No reproduction or networking pemited without license from IHS Not for Resale ISO 6837-1982 (E) INTERNATIONAL STANDARD Surface active agents -- Water dispersing power in dry cleaning solvents 0 Introduction Similarly, the water emulsifying power represents the maxi- mum quantity of water which may be emulsified in the solvent Dry cleaning detergents, and related auxiliary products used for by the surface active agent. These properties, together with prespotting and prebrushing, may solubilize or emulsify greater other properties, enable a dry cleaning detergent, a prespotting or lesser amounts of water in organic solvents. product or prebrushing product to be characterized. Water dispersing power is defined as the ability of a dry clean. Scope and field of application ing detergent to solubilize or emulsify water in dry cleaning solvents. This International Standard specifies a method for the determi- nation of the water solubilizing power and the water emul- ThepurposeofthemethoddescribedinthisInternational Stan dard is to determine the water dispersing power in a simple and sifying power of a dry cleaning detergent or similar auxiliary product with a usual concentration of 3 to 5 g/l in cteaning easy manner. vats. The method is not suitable for accurate measurement of the The method is applicable to other concentrations of auxiliary solubilizing power of surface active agents. products in the solvent. There.isno value inknowing theexact rateof solubilization,as The method described in this International Standard is not theaction is quite different in thepresence of fabrics.inthe lat- recommended for higher concentrations of auxiliary products ter case, there are three effects which occur at different rates, containing the surface active agent in the solvent and water, i.e. : for example as is the case in chemical cleaning processes using brushing or spraying. a)relativelyfastabsorptionofwa