What is BS EN 13523‑19- Atmospheric exposure testing about?
BS EN 13523 series covers coil coated metals. BS EN 1352319 is one of the parts of a series of documents that specifies the panel design and describes the procedure for determining the resistance to outdoor exposure of an organic coating on a metallic substrate.
It has been common practice in the northern hemisphere to expose test panels at 45° facing South. Whilst this orientation is appropriate for degradation of the organic coating, investigations have shown that it has little bearing on the overall corrosion performance of the product when used in building applications.
For example, the 45° facing south exposure takes no account of
- Overhangs which produce unwashed areas
- Sheet overlaps
- Low pitched roofing, etc
Who is BS EN 13523‑19 - Atmospheric exposure testing for?
BS EN 13523‑19 on coil coated metals is applicable to:
- Coil coating chemical industries.
- Sheet metal industry
- Furniture industry
- Steel and aluminium industries
- Automotive, mechanical Industries
Why should you use BS EN 13523‑19 - Atmospheric exposure testing?
Coil coating is the method of coating a metal coil in a continuous process prior to construction. The metal coil is fed into an uncoiler, a line-loading accumulator, treated and painted if needed, fed into a finish line exit accumulator, and then rewound on a recoiler.
BS EN 13523-19 provides the panel design and describes the procedure for determining the resistance to outdoor exposure of an organic coating on a metallic surface, these are used for design flexibility, corrosion resistance, and weathering resistance, which provides a high-quality organic coating on coil coated metals.
By offering panel design and method of atmospheric exposure test procedure guidelines, BS EN 13523-19 aids in the improvement of the durability and the efficiency of organic coating on coil coated metals.
What’s changed since the last update?
BS EN 13523‑19:2019 supersedes BS EN 13523‑19:2011, which is withdrawn. BS EN 13523‑19:2019 includes some technical changes with respect to BS EN 13523‑19:2011.
These include:
- In 4.1 some additional information has been added for the rack design
- In 6.3.4 some information on how to use panels 1, 2 and 3 has been added
- The test site for continental industrial climate has been deleted from Annex B
- The text has been editorially revised, and the normative references have been updated