3415 (TSO International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHAA OPTAHM3AMA HO CTAHAAPTW3ALWW·ORGANISATION INTERNATIONALE DE NORMALISATION Textile floor coverings - Determination of thickness loss after brief, moderate static loading Revetements de sol textiles -- Determination de la perte d'épaisseur apres application, de courte durée, d'une charge statique modérée Second edition - 1986-10-01 0 3415-1986 (E) UDC 645.12 : 620.16 Ref. No. 1SO 3415-1986 (E) Descriptors : textiles, floor coverings, textile coatings, tests, compression tests, static loads, thickness, measurement. Copyright International Organization for Standardization Price based on 2 pages sefromIHS Not for Resale 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 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental 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. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 3415 was prepared by Technical Committee ISO/TC 38, Textiles. This second edition cancels and replaces the first edition (ISO 3415-1975), clauses 4 and 7 of which have been technically revised. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other international Standard implies its latestedition,unlessotherwisestated. International Organization for Standardization, 1986 ? Printed in Switzerland Copyright International Organization for Standardization Not for Resale INTERNATIONAL STANDARD ISO3415-1986 (E) Textile floor coverings - Determination of thickness loss after brief, moderate static loading Scope and field of application To ensure that the pressure will be exerted evenly within the allowed tolerances for all thicknesses to be measured, the This International Standard specifies a method for the deter- pressure shall be exerted by the mass of the presser foot mination of thickness loss of textile floor coverings after brief, (without or with additions to the mass) and not by a spring. moderate static loading, and is intended to simulate the effect The thickness gauge shall indicate the measurements in of the pressure exerted by a chair leg for a short period. It is applicable to all textile floor coverings of uniform thickness and increments of 0,1 mm. construction. It does not apply to other textile floor coverings unless the areas of different thickness or construction can be 4.2 Circular guard ring, mass 1 000 g, external diameter separately tested. not greater than 125 mm and internal diameter of d + 40 mm, where d is the diameter of the presser foot and such that a NOTE-- A method for determination of thickness loss of textile floor pressure of at least 1 kPa is exerted. coverings after prolonged, heavy static loading is given separately in ISO3416. A throat of 40 mm width may be cut from the guard ring. 4.3 Straightedge, for example a ruler, for brushing the sur- References face of the specimen. Iso 139, Textiles -- Standard atmosphere for conditioning and testing. Checking of the thickness gauge 5 ISo 1765, Machine-made textile floor coverings - Determina- tion of thickness. With the presser foot and the reference plate in contact, set the gauge to read zero, or record the zero reading. ISo 1957, Machine-made textile floor coverings -- Sampling and cutting specimens for physical tests. Atmosphere for conditioning an