ISO 9366 pdf download.Agglomerated cork floor tiles — Determination of dimensions and deviation from squareness and from straightness of edges
1 Scope
This International Standard specifies a method for the determination of the dimensions of agglomerated cork floor tiles or slabs, and the deviation from squareness and from straightness of their edges. NOTE 1 Alternatively, methods described in EN 427 and EN 428 may be used. NOTE 2 The term “tiles” used in this International Standard covers either tiles or slabs.
2 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply. 2.1 squareness property of a product in tile form whose corners form exactly a right angle 2.2 straightness absence of irregularities (e.g. bends or curves) from the edge of a tile 2.3 thickness distance between two parallel plates where the tile is inserted under a certain load 2.4 agglomerated composition cork product obtained from the agglutination of cork granules with the addition of a binder not derived from cork cells 2.5 floor covering product manufactured in roll or tile form, which can be used to cover floors from wall to wall 2.6 cork floor covering floor covering, the main component of which is agglomerated composition cork, intended to be used with a finish 2.7 tile floor covering supplied in flat form, normally as squares
3 Principle
The plane dimensions, the deviation from squareness and the deviation from straightness of edges of tiles or slabs are measured by contact with dial gauges.
4 Apparatus
4.1 Device for the determination of plane dimensions, comprising the following (see Figure 1 ). 4.1.1 Flat surface, with dimensions larger than those of the tiles. If possible, use a flat surface making an angle of 1 20° with the horizontal plane; this will allow the test specimen to be maintained against the rigid ruler by the action of its own weight. 4.1.2 Metallic ruler, fixed to the flat surface and having a saliency on one end. 4.1.3 Three dial gauges (A, B, C), graduated in 0,01 mm, fitted with feeler gauges. 4.1.4 Two standard rulers, of stainless steel, one of length equal to the nominal length of the tiles (L l ), accurate to ? 0,05 mm, and the other of length equal to the nominal width (L w ). 4.2 Device for the determination of thickness, comprising the following. 4.2.1 Flat and rigid surface, having dimensions larger than the tiles, supported by four levelling screws. 4.2.2 Dial gauge (D), graduated in 0,01 mm, fitted with a feeler gauge with 1 00 mm 2 cross section. This dial gauge should have an adapter to support a weight (4.2.3). 4.2.3 Weight, of mass (0,80 + 0,02) kg.
7 Procedure
7.1 Checking the device for the determination of plane dimensions 7.1.1 Place the apparatus on a flat horizontal surface (4.1 .1 ). Check the level and adjust it, if necessary. 7.1.2 Take the standard ruler (4.1 .4) of length L l . Place it on the flat surface so that one of its ends touches the metallic ruler (4.1 .2), being perpendicular to it, and the other end touches the feeler gauge of dial gauge A. Fix this dial gauge at approximately half of its path and reset the reading to zero 1 ) . 7.1.3 Take the standard ruler (4.1 .4) of length L w . Place it on the flat surface so that one of its ends touches the metallic ruler (4.1 .2), being perpendicular to it, and the other end touches the feeler gauge of dial gauge B. Fix this dial gauge at approximately half of its path and reset the reading to zero 1 ) . 7.1.4 Fix the dial gauge C at a distance from the metallic ruler equal to the nominal width of the test specimen (L w ) and so that approximately half of its path lies on the perpendicular projection of the metallic ruler. Reset the reading to zero 1 ) . 7.2 Checking the device for the determination of thickness Fix the dial gauge D to its stem so that its feeler gauge is in contact with the base. Add the weight (4.2.3) and reset to zero. 7.3 Tests 7.3.1 Determination of side length 7.3.1.1 Take a tile as test specimen. Mark the edges of the test specimen with letters (e.g. a, b, c, d, clockwise).