BS EN 13523-6 pdf free download

BS EN 13523-6-2020 pdf free download.Coil coated metals – Test methods Part 6: Adhesion after indentation (cupping test).
This document defines terms of the procedure for determining the adhesion of an organic coating to a metallic substrate after indentation produced by slow deformation. The resistance to cracking can also be evaluated. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13523‑0, Coil coated metals — Test methods — Part 0: General introduction EN 23270, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning and testing (ISO 3270) EN 60454‑2, Specification for pressure-sensitive adhesive tapes for electrical purposes — Part 2: Methods of test EN ISO 1520, Paints and varnishes — Cupping test (ISO 1520) 3? Terms? and? definitions For the purposes of this document, the terms and definitions given in EN 13523-0 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/ — ISO Online browsing platform: available at https://www.iso.org/obp 4 Principle The test specimen is cross-hatched with a cutting tool and is then deformed by pressing under specified conditions. After pressing, the test specimen can be artificially aged by immersion in boiling water. 5 Apparatus and materials 5.1 Cross‑hatching device A single‑bladed knife, very sharp to avoid any burrs. For coatings less than 60 µm in thickness, it is also possible to use a purpose‑made cutting tool, capable of making a minimum of six parallel cuts. 5.2 Pressing device Apparatus in accordance with EN ISO 1520, consisting essentially of: a) a steel die, of inside diameter (27 ± 0,05) mm, its contact surface with the test specimen being flat and polished; b) a retaining ring, having its flat and polished surface in contact with the test specimen; c) an indenter consisting of a polished steel sphere, of diameter (20 ± 0,05) mm with a maximum of 0,1 mm displacement from the axis of the die; d) a system, preferably hydraulic, allowing movement of the indenter at a speed of (12 ± 6) mm/min.
5.3 Ageing device The ageing device shall consist of: a) a vessel, to contain boiling water, whose dimensions allow the complete immersion of the test specimen; b) a heating system. 5.4 Pincers, the jaws of which shall be flat, blunt and having a width of at least 5 mm. 5.5 Magnifying glass × 10. 5.6 Transparent pressure‑sensitive adhesive tape, 25 mm wide, with an adhesion strength of (10 ± 1) N per 25 mm width when tested in accordance with EN 60454‑2. 6 Sampling Sampling shall be in accordance with EN 13523‑0. 7 Test panels Preparation and conditioning of test panels shall be in accordance with EN 13523‑0. 8 Procedure 8.1 Ambient conditions Measure the coating adhesion at ambient temperature. For more accurate measurements, as required for instance in case of dispute, the temperature shall be (23 ± 2) °C and the relative humidity (50 ± 5) %, in accordance with EN 23270. 8.2 Cross‑hatching (not used for evaluation of resistance to cracking) 8.2.1 For coatings greater than or equal to 60 µm thickness (see Figure 1) Make two parallel cuts 5 mm apart, together with two additional similar cuts at right angles to form a central 5 mm × 5 mm square. Each cut shall just reach the metallic substrate, and each cut shall measure at least 50 mm in length. Each cut shall be at a distance of not less than 20 mm from the edge of the test panel.BS EN 13523-6 pdf download.