ISO INTERNATIONAL STANDARD 3810 Second edition 1987-10-01 Corrected and reprinted 1992-07-01 INTERNATIONALORGANIZATION FOR STANDARDIZATION ISo ORGANISATION INTERNATIONALE DE NORMALISATION MEXKAYHAPOAHAA OPIAHM3ALMA NO CTAHAAPTM3ALMM Floor tiles of agglomerated cork - Methods of test Dalles d'agglomere de liege pourreveternents des sols-Methodes d'essai Reference number ISO3810:1987 (E) Coovriaht Intemational Oraanization for Standardization 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 3810 was prepared by Technical Committee ISO/TC 87, Cork. This second edition cancels and replaces the first edition (IS0 3810 : 1977), of which it constitutes a technical revision. 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 latest edition, unless otherwise stated. ? InternationalOrganizationforStandardization,1987 Printed in Switzerland Coovriaht International Oraanization for Standardization INTERNATIONALSTANDARD ISO3810:1987 (E) Floor tiles of agglomerated cork - Methods of test Scope and field of application 4.8 Electric muffle furnace, capable of being controlled at 450±20°C. This International Standard specifies methods of test for deter- mining the following characteristics of agglomerated cork floor 4.9 Tensile testing machine,accurate to ± 1 N, with one tiles : dimensions and squareness, apparent density, tensile fixed jaw and onemovable jaw,initially 12 mm apart.The strength, initial and residual indentation, ash content and movable jaw shall move unloaded at a speed of 300 mm/min. resistance to boiling hydrochloric acid. 4.10 Static load press, with flat parallel platens of dimen- 2 References sions greater than those of the test pieces and equipped with the following items : ISo 3813, Floor tiles of agglomerated cork -Characteristics, sampling and packing.1) 4.10.1 Cylindrical indentor,made of steel,of diameter 28,7mm(cross-sectionalarea645mm2)fittedonthemovable ISo9366,Floor tiles of composition cork Determinationof head. dimensions and of deviation from rectilinearity and from sides perpendicularity.2) 4.10.2 Dial micrometer, accurate to ± 0,05 mm, attachied to the movable head and giving by direct reading the thickness of the compressed material. Reagent Hydrochloric acid, 20 = 1,18 g/ml, of technical grade. 4.10.3 Weights, for applying the load to the movable head. 4.11 Device for testing resistance to boiling 4 Apparatus hydrochloric acid, equipped with 4.1 Balance, accurate to ± 0,5 g. 4.11.1 Round bottom flask, of min. capacity 500 ml. 4.2 Balance, accurate to ± 0,1 mg. 4.11.2 Reflux condenser. 4.3 Crucible, made of porcelain, nickel or platinum. 4.11.3 Heating device, to maintain temperature. 4.4 Stop-watch. 4.12 Punch, to prepare test piece. 4.5 Desiccator. 5 Sampling and conditioning 4.6 Conditioning chamber, temperature and humidity Tests shall be carried out at ambient temperature, on test controlled. specimens taken from a sample obtained in accordance with ISo 3813 and conditioned in the conditioning chamber (4.6) for 4.7 Electrically heated oven,capable of being controlled at 24 h at 20 ± 2 °C and at a relative humidity of