ISO INTERNATIONAL STANDARD 17230 IULTCS/IUP 45 First edition 2006-09-15 Leather Physical and mechanical tests Determination of water penetration pressure Cuir-Essaisphysiquesetmécaniques-Déterminationdela pression depénetration de I'eau Reference number ISO 17230:2006(E) IULTCS/IUP45:2006(E) c s @ISO 2006 Copyright Intemational Organization for Standardization without license from IHS Not for Resale ISO 17230:2006(E) IULTCS/IUP45:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen non-governmental,inliaisonwith lsO,alsotake part inthework.IsOcollaboratescloselywiththe International Electrotechnical Commission (iEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. Technologists and Chemists Societies (IUP Commission, IULTCS) in collaboration with the European held by UNI. It was published as EN 14289. It is based on IUP 45 published in J. Soc. Leather Tech. Chem., 86 (7), p. 345, 2002, and declared an official method of the IULTCS in May 2003. advancement of leather science and technology. IULTCs has three Commissions, which are responsible for international standardizing body for the preparation of test methods for leather. ili Cpyrhtmlonzaadardzaoghtsreseved Not for Resale arda Not for Resale ISO17230:2006(E) INTERNATIONAL STANDARD IULTCS/IUP45:2006(E) LeatherPhysical and mechanical tests Determination of waterpenetrationpressure Scope 1 This International Standard describes a method for determining the water penetration pressure of leather. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)applies. Iso2418,Leather-Chemical,physicalandmechanical andfastness tests-Samplinglocation Iso2419, Leather—Physicaland mechanical tests—Samplepreparation and conditioning Iso3696,Waterforanalytical laboratory use—Specifications and test methods 3 Principle A sample of leather is clamped over a container of water with the surface of the leather in contact with the water. The water pressure is raised at a specified rate and the pressure required to force droplets of water throughthe leatheris measured. 4Apparatus 4.1Cup, in the form of a short non-corrosive metal circular cylinder, internal diameter 40,0 mm ± 0,2 mm with the open end uppermost. 4.2Annular clamp, internal diameter 40,0mm ±0,2mm, capable of clamping the leather test piece across the cup (4.1) without slippage when a pressure of 65 kPa is applied. 4.3Stiff wire gauze, with eight holes per 25mm, circular in shape and held in place around the 4.4Means of increasing pressure, such that the water in the cup is subjected to a uniform increase in pressure of 3kPa/min ±0,3kPa/min to a maximum pressure of 65kPa. 4.5Distilled or deionized water, conforming to the requirements of grade 3ofISO 3696. 4.6Press knife, the inner surface of which is a right angled circular cylinder, capable of cutting a circular test piece which can be clamped between the cup (4.1) and annular clamp (4.2) and conforming to iso 241