ISO INTERNATIONAL STANDARD 26987 First edition 2008-08-01 Resilient floor coverings Determination of staining and resistance to chemicals Revetementsde sol résilientsDeterminationdu degrede tachage et delarésistanceauxproduitschimiques Referencenumber ISO 26987:2008(E) @ISO 2008 ISO26987:2008(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 non-governmental, in liaison with IsO, also take part in the work. Iso collaborates closely ywith the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. 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. ISO26987waspreparedbyTechnical CommitteeISO/TC219,Floorcoverings Iso 2008-All rights reserved ii INTERNATIONAL STANDARD ISO26987:2008(E) Resilient floor coverings Determination of staining and resistance to chemicals Scope This International Standard specifies a procedure for the determination of the reaction of resilient floor covering to chemical substances. 2Principle Various chemical substances in liquid or paste form are placed on a test piece for defined periods and then removed. After cleaning has been carried out, the resulting change of appearance is assessed under specified lighting conditions. 3 Apparatus and materials 3.1 Standard laboratory equipment. 3.1.1 Pipettes. 3.1.2 Watch glass, diameter 40 mm 3.1.3 Spatulas. 3.2 Chemical substances in liquid or pasteform. This International Standard does not specify or suggest the chemical substances to be tested. 3.3Standardcleaningand stainremoval products. 3.3.1 White cotton, in pad or cloth form. 3.3.2 Brushes, hard, unlikely to score the surface. 3.3.3 Warm water, used alone or with selected cleaning products (see Annex A). 3.4Abrasive materials (abrasives, abrasive scouring pads, steel wool No.00 or scouring powder, or abrasive papers, grain size P 240 or finer, used with water) 3.5 Special cleaning products, recommended by the floor covering manufacturer. 3.6 to give an intensity of light at the viewing platform of (1 500 ± 100) Ix and in such a way as to illuminate the test piece vertically from above. The surroundings shall be neutral and darkened. The intensity of the light shall be checked frequently by the use of a luxometer. The lifetime of the lamp, as given by the manufacturer, shall not be exceeded. ISO 2008 - All rights reserved 1 ISO26987:2008(E) 3.7 Rotary viewing table, which enables the test piece to be rotated so that it can be viewed from all directions under the standard illumination. 4 Sampling and preparation of test piece a new roll or carton and should not have been treated with any floor finish/polish. chemical substances to be tested. If the test uses a chemical substance likely to cause swelling or board at least 5 days before testing. piece (using a marking which is not affected by the material used in the test), or by a sketch, diagram or photograph. 5 Atmosphere for conditioning and testing of 24 h. Maintain this condition when carrying out the test. 6Testprocedure 6.1Applicationofliquid substances and remove it immediately. If the diameter of the splash of the liquid chemical substance is more than 15 mm apply the watch glass again. Leave it in position this time, in such a way as to produce a splash of liquid chemical substancecovering an