Coating standard: Test Method for ceramic tiles

Core tips: Test methods for ceramic tiles Part 14: Determination of pollution resistance GB / t3810.14-1999 1 Scope This standard specifies the determination method of pollution resistance of ceramic tile surface 2 reference standards The following standards contain provisions which are incorporated by reference into this standard At the time of publication, the editions indicated are all valid All standards will be revised, and parties using this standard shall explore the possibility of using the latest version of the following standards GB / T 3810.7-1999 test methods of ceramic tiles Part 7: glazed tiles Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Home of coatings: Test methods for ceramic tiles Part 14: Determination of pollution resistance GB / t3810.14-1999 1 this standard specifies the determination method of pollution resistance for ceramic tiles 2 The provisions contained in the following standards of the cited standards are the provisions of this standard by reference in this standard At the time of publication, the editions indicated are all valid All standards will be revised, and parties using this standard shall explore the possibility of using the latest version of the following standards GB / T 3810.7-1999 test methods for ceramic tiles Part 7: Determination of abrasion resistance of glazed tile surface 3 principle: use the reaction of test solution and test material in contact with the front of the tile within a certain period of time, and then use the specified cleaning method to clean the tile surface, and determine the pollution resistance of the tile by the obvious change of the tile surface 4 Test solution and material 4.1 trace prone pollutant (paste) 4.1.1 chrome green in light oil shall meet the requirements of Appendix A (prompted appendix) 4.1.2 red pollutants (for green bricks) in light oil shall comply with the provisions of Appendix B (prompted appendix) 4.2 the iodine liquor with chemical oxidation reaction pollutant 4.2.1 13g / L is reserved 4.3 film forming contaminant 4.3.1 olive oil as determined by the International Olive Oil Association (1979) 5 cleaning 5.1 cleaning agent 5.1.1 hot water, 55 ℃± 5 ℃ 5.1.2 weak cleaning agent and commercial agent, without corrosion components, pH = 6.5-7.5 5.1.3 strong cleaning agent and commercial cleaning agent, including corrosion composition, pH = 9-10 The cleaning agent does not contain hydrogen and fluorine and its compounds 5.1.4 suitable solvent 5.1.4.1 hydrochloric acid solvent 3 + 97 (V / V) 5.1.4.2 potassium hydroxide solution, 200g / L 5.1.4.3 acetone If other specified solutions are used, they must be specified in the test report 5.2 cleaning procedure and equipment 5.2.1 procedure a clean the brick surface in flowing hot water (5.1.1) and keep for 5min, then wipe the brick surface with a wet cloth 5.2.2 procedure B: use ordinary sponge or cloth without abrasives in weak detergent (5.1.2) to manually wipe the patient's face, then wash it under flowing water and wipe it with wet cloth 5.2.3 procedure C mechanically clean the brick surface in a strong detergent (5.1.3), for example, the following mechanical cleaning can be used: a rotating brush with a diameter of 8cm made of hard bristle, and the rotating speed of the brush is about 500r / min The cleaning process is 2min The tank containing detergent has a feeder connected with the brush, and then it is washed under the flowing water, and the brick surface is wiped with a wet cloth 5.2.4 soak the sample of procedure D in the prepared solution (5.1.4) for 24h, then wash the brick surface under flowing water, and wipe the brick surface with a wet cloth If any solvent (5.1.4) can be used to remove the pollutants, the cleaning step is considered to be completed 5.3 auxiliary equipment 5.3.1 oven for drying at 110 ℃± 5 ℃ Infrared, microwave or other drying systems with short time and the same effect can also be applied 6 sample 6.1 number of samples 5 samples are required for each test solution and material Use intact whole brick or half brick The surface of the test brick shall be large enough to ensure that different pollution tests can be carried out If the brick surface is too small, the number of bricks can be increased Thoroughly clean the bricks, and then dry them to constant weight in an oven (5.3.1) at 110 ℃± 5 ℃, that is, the difference between the two consecutive weighing bricks is less than 0.1g, and cool the bricks to room temperature in the dryer When testing the unglazed brick after abrasion, the sample shall be tested in accordance with GB / T 3810.7, and the rotating speed shall be 600r / min 7 Apply 3 to 4 drops of paste in 4.1.1 or 4.1.2 on the front of the brick, 3 to 4 drops of agent in 4.2.1 and 4.3.1 in the area where the brick faces are celebrating, and keep for 24 hours In order to make the test area close to the circle, place a transparent glass cylinder with a diameter of about 30mm on the pollutant in the test area 7.2 remove the pollutant treatment sample according to the pollutant in 7.1 and the cleaning process in 5.2 (procedure a, procedure B, procedure C and procedure d) Dry the sample in an oven (5.3.1) at 110 ℃± 5 ℃ after each cleaning, and then observe the change of the glaze with eyes (usually glasses can be worn to observe) The distance between the eyes and the brick surface is 25-30cm, and the light is about 300lx of sunlight or artificial light source, but direct sunlight shall be avoided If the pollutants in 4.1 are used, the glaze can see the color, and the pollution of the brick surface will be written into the report If the glaze does not change, i.e the contamination can be wiped off, record the cleanliness according to figure 1 If the contamination cannot be wiped off, proceed to the next cleaning procedure 8 According to the results of 7.1 and 7.2 treatment, the surface pollution resistance of ceramic tiles is divided into 5 grades, as shown in Figure 1 Record the reaction results of each sample and each pollutant (no abrasion, if both parties agree, the unglazed brick shall be carried out after abrasion) The fifth level corresponds to the easiest to remove certain pollutants from the brick surface The first level corresponds to the fact that the pollutants on the brick surface cannot be removed without destroying the brick by any kind of test step 9 test report the test report shall include the following contents: a) refer to this standard; b) description of ceramic tiles, including preparation method of samples; c) pollutants and cleaning materials; d) classification of each pollutant and each sample according to figure 1 (no wear, if both parties agree, unglazed tiles can be carried out after wear) Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,