Norme europee sui test
BackMetodi di prova
Nel corso degli anni, l’ECCA ha messo a punto tutta una serie di metodi di prova, strumento utile per chi desidera testare metallo preverniciato. Nel 1995, è stato istituito un gruppo di lavoro del CEN TC139, supportato e sponsorizzato da ECCA. I risultati di questo lavoro riguardano la conversione dei metodi di prova ECCA in EN 13523, una norma europea costituita da oltre 25 sezioni.
Di seguito è riportato l’elenco dei metodi di prova pubblicati sino a oggi o in preparazione:
| EN 13523-0 | General introduction and list of test methods |
| EN 13523-1 | Coil Coated metals - Test Methods - Part 1: COATING THICKNESS (under revision). |
| EN 13523-2 | Coil Coated metals - Test Methods - Part 2: SPECULAR GLOSS This part of EN 13523 specifies the procedure for determining the specular gloss of an organic coating on a metallic substrate. Gloss is a characteristic of fundamental importance to the appearance of the coil coated product. |
| EN 13523-3 | Coil Coated metals - Test Methods - Part 3: COLOUR DIFFERENCE This part of EN 13523 specifies the procedure for determining the instrumental colour difference (CIELAB) of an organic coating on a coil coated metal. |
| EN 13523-4 | Coil Coated metals - Test Methods - Part 4: PENCIL HARDNESS This part of EN 13523 specifies the procedure for determining the relative hardness of an organic coating on a metallic substrate, by means of pencils of known hardness. |
| EN 13523-5 | Coil Coated metals - Test Methods - Part 5: RESISTANCE TO RAPID DEFORMATION (impact test) This part of EN 13523 describes the procedure for determining the resistance to cracking and/or pick-off on rapide deformation of an organic coating on a metallic substrate in terms of energy which the specimen will withstand. |
| EN 13523-6 | Coil Coated metals - Test Methods - Part 6: ADHESION AFTER INDENTATION (cupping test) This part of EN 13523 defines terms of the procedure for determining the adhesion of an organic coating to a metallic substrate after indentation after slow deformation |
| EN 13523-7 | Coil Coated metals - Test Methods - Part 7: RESISTANCE TO CRACKING ON BENDING (T-bend test) This part of EN 13523 describes the procedure for determining the resistance to cracking of an organic coating on a metallic substrate when bent through 135° to 180°. The degree of adhesion may also be evaluated. |
| EN 13523-8 | Coil Coated metals - Test Methods - Part 8: RESISTANCE TO SALT SPRAY (fog) (under revision) |
| EN 13523-9 | Coil Coated metals – Test Methods – Part 9: RESISTANCE TO WATER IMMERSION This part of EN 13523 describes the procedure for determining the resistance to water immersion of an organic coating on a metallic substrate |
| EN 13523-10 | Coil Coated metals – Test Methods – Part 10: RESISTANCE TO FLUORESCENT UV LIGHT AND WATER CONDENSATION (under revision). This part of EN 13523 describes the basic principles and procedure for determining the resistance of an organic coating on a metallic substrate (coil coating) to a combination of fluorescent UV light, and water condensation and temperature under controlled conditions. |
| EN 13523-11 | Coil Coated metals – Test Methods – Part 11: M.E.K./SOLVENT RUBBING TEST. |
| EN 13523-12 | Coil Coated metals – Test Methods – Part 12: SCRATCH RESISTANCE. This part of EN 13523 determines the resistance of an organic coating to penetration by scratching with a needle. The test is more applicable to the development of coatings rather than day to day quality control. |
| EN 13523-13 | Coil Coated metals – Test Methods – Part 13 : RESISTANCE TO ACCELERATED AGEING BY THE USE OF HEAT This part of EN 13523 describes the procedure for determining the behaviour of an organic coating on a metallic substrate (flat or bent specimens) when submitted to accelerated ageing by heating at a defined temperature for a defined period of time. |
| EN 13523-14 | Coil Coated metals – Test Methods – Part 14: CHALKING (Helmen method) This part of EN 13523 describes the procedure for determining objectively the chalking resulting from natural or artificial weathering of an organic coating on a metallic substrate. |
| EN 13523-15 | Coil Coated metals – Test Methods – Part 15: METAMERISM This part of EN 13523 defines terms of the procedure for determining the metamerism of a colour match of an organic coating on a metallic substrate. |
| EN 13523-16 | Coil Coated metals – Test Methods – Part 16: ABRASION RESISTANCE This part of EN 13523 defines the procedure of determining the abrasion and wear resistance of organic coatings. |
| EN13523-17 | Coil Coated metals – Test Methods – Part 17: DETERMINATION OF THE ADHESION OF STRIPPABLE FILMS This part of EN 13523 describes two procedures for the numerical evaluation of the adhesion of strippable films which have previously been applied to the surface of coil coated materials. |
| EN 13523-18 | Coil Coated metals – Test Methods – Part 18: RESISTANCE TO STAINING This part of EN 13523 specifies test procedures for assessing the effect of chemicals on the characteristics (such as discoloration, change in gloss, blistering, softening, swelling and loss of adhesion) of an organic coating on a metallic substrate. |
| EN13523-19 | Coil Coated metals – Test Methods – Part 19: ECCA RECOMMENDATION FOR PANEL DESIGN AND METHOD FOR ATMOSPHERIC EXPOSURE TESTING. This recommendation covers all aspects of panel design, panel preparation, exposure orientation and a possible rack design which would be suitable for outdoor exposure and testing of coil coated material and simulate building application. |
| EN13523-20 | Coil Coated metals – Test Methods – Part 20: FOAM ADHESION ON A COATING. This method describes procedures for testing adhesion of foam on a coating by pulling off the foam, immediately after application or after ageing. |
| EN 13523-21 | Coil Coated metals – Test Methods – Part 21: EVALUATION OF OUTDOOR EXPOSED PANELS This part of EN 13523 specifies the procedure for evaluating the behaviour of an organic coating on a metallic substrate during and after outdoor exposure. |
| EN 13523-22 | Coil Coated metals – Test Methods – Part 22: COLOUR DIFFERENCE; VISUAL COMPARISON This part of EN 13523 specifies the procedure for determining the difference in colour of an organic coating (coil coated) on a metallic substrate by visual comparison against a standard using either diffuse natural daylight or artificial daylight in a standard booth. |
| EN 13523-23 | Coil Coated metals – Test Methods – Part 23: COLOUR STABILITY IN HUMID ATMOSPHERES CONTAINING SULPHUR DIOXIDE This part of EN 13523 defines terms of the procedure for determining the colour stability of an organic coating (coil coated) on a metallic substrate when exposed to humid atmospheres containing sulphur dioxide. |
| EN13523-24 | Coil Coated metals – Test Methods – Part 24: STICKING / PRESSURE MARKING This method describes the procedure for evaluating the resistance of a coil coated material to the pressure within a coil or a stack of sheets resulting in sticking, gloss transfer, plasticizer migration, colour change, etc.. |
| EN13523-25 | Coil Coated metals – Test Methods – Part 25: RESISTANCE TO HUMIDITY This method specifies a procedure for evaluating the humidity resistance of an organic coating (coil coated) on a metallic substrate, by means of exposure in a humidity cabinet under controlled conditions. |
| EN13523-26 | Coil Coated metals – Test Methods – Part 26: RESISTANCE TO CONDENSATION OF WATER This method describes a procedure for evaluating the condensation resistance of coil coated materials. Changes of the coating film such as blistering, colour and gloss differences can be evaluated. |
In preparazione:
| EN13523-27 | RESISTANCE TO HUMID POULTICE (CATAPLASMA TEST) (UNDER CEN ENQUIRY) |
| EN13523-28 | EVALUATION OF FUNGAL OR ARGAL GROWTH |
| EN13523-29 | RESISTANCE TO COLLECTION OF DIRT |
| EN xxxxx | DETERMINATION OF DRY SOLID CONTENT AND SPREADING RATE OF COIL COATINGS |