ISO-10545-13-1995.pdf
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1、INTERNATIONAL STANDARD IS0 10545-13 First edition 1995-l I-01 Ceramic tiles - Part 13: Determination of chemical resistance Carreaux et dalles cbamiques - Partie 13: D where tiles have different colours or decorative effects on parts of the surface, care should be taken to include all distinctive pa
2、rts. 6.2 Size of test specimens 6.2.1 Unglazed tiles Cut a square test specimen (50 mm x 50 mm) from each tile under test so that one side of each test specimen is not a cut side. 6.2.2 Glazed tiles Use undamaged test specimens which may be either whole tiles or parts of tiles. 6.3 Preparation of te
3、st specimens Thoroughly clean the surface with a suitable solvent, for example methanol. Do not use test specimens with surface defects. 7 Procedure for unglazed tiles 7.1 Application of test solutions Dry the test specimens in the drying oven (5.3) ad- justed to (110 + 5) “C, until they reach const
4、ant mass, i.e. until the difference between two successive weighings is less than 0,l g. Then cool the tiles to room temperature. Use the test solutions listed in 4.1, 4.2, 4.3.1 and 4.3.2. Immerse the test specimens vertically to a depth of 25 mm in the vessel (5.1) containing the test solution. Th
5、e non-cut side of each test specimen shall be fully immersed. Cover with the lid (5.1) and maintain at (20 k 2) “C for 12 d. After 12 d, subject the test specimens to running water for 5 d and then boil them for 30 min while completely immersed in water. Remove the test specimens from the water, dab
6、 with a wet, but wrung-out, chamois leather (5.4) and dry in the oven adjusted to (I 10 * 5) “C. 7.2 Determination of class Examine the test specimens at a distance of 25 to 30 cm, with the naked eye or with spectacles if usually worn, for changes on the proper surface and the non-cut edge. Then exa
7、mine the parts of the cut edges that were immersed. Daylight or artificial illumination is permitted (approximately 300 Ix), but direct sunlight shall be avoided. Tiles are divided into the following classes: 7.2.1 For test solutions listed in 4.1 and 4.2 Class UA: No visible effect” Class UB: Visib
8、le effects on cut sides Class UC: Visible effects on cut sides, non-cut sides and on the proper surface 7.2.2 For test solutions listed in 4.3.1 Class ULA: No visible effect” Class ULB: Visible effects on cut sides Class ULC: Visible effects on cut sides, non-cut sides and on the proper surface 1) I
9、f the hue changes slightly, this is not considered to be chemical attack. 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 01:30:43 MDTNo reproduction or networking permitted wi
10、thout license from IHS -,-,- 0 IS0 IS0 10545-13:1995(E) 7.2.3 For test solutions listed in 4.3.2 Class UHA: No visible effect” Class UHB: Visible effects on cut sides Class UHC: Visible effects on cut sides, non-cut sides and on the proper surface 8 Procedure for glazed tiles 8.1 Application of test
11、 solutions Apply a uniform layer of the sealing material (5.6). 3 mm thick, to the rim of the cylinder (5.2). Turn the cylinder upside down onto a fresh part of the glazed surface, and seal around the rim. Pour the test solution through the inlet to a height of (20 + I) mm. The test solution shall b
12、e any of those listed in 4.1, 4.2 and 4.3.1; if required, the test sol- utions listed in 4.3.2 may be used. Maintain the test assembly at (20 f 2) “C. For testing the resistance to household chemicals, swimming pool salts and citric acid, maintain the test solution in contact with the test specimen
13、for 24 h. Remove the cylinder and clean the glazed surface with a suitable solvent to completely remove the sealing material. For testing the resistance to hydrochloric acid and potassium hydroxide, maintain the test solution in contact with the test specimen for 4 d. Shake the test assembly gently
14、once a day and ensure that the level of the test solution does not change. Replace the test solution after 2 d. After two more days, remove the cylinder and clean the glazed surface with a suitable solvent to completely remove the sealing material. 8.2 Determination of class 8.2.1 General Completely
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