On ceramic tiles, as well as on other materials is available from regulatory documents, which, although not the law in its pure form, but is an official reference and, therefore, an authoritative set of documents for quality and characteristics of different types of ceramic tiles. Regulatory documentation is a technical condition in which manufacturers and retailers of ceramic tiles, on the one hand, and its Consumers, on the other hand, can identify and prove the "suitability" of a product, ie, to establish its quality. It should be noted that the use of standard documentation (or standards) is not necessary: in other words, a manufacturer of ceramic tile is not required to produce tiles, strictly proper regulatory documentation. Nevertheless, it is clear that if dannsh manufacturer voluntarily decide to comply with regulatory documentation, and if he accepts the obligations for it to the purchaser or consumer, for him the product meets the standard documentation is mandatory. Who develops the normative documentation? In all countries, the regulatory documentation develop and publish national standards organizations that are created specifically for this purpose, and which includes specialists in the industry these materials, research, classification, or exploitation. Italian organization, which develops regulatory documentation, called uni (Ente Nazionale Italiano di Unificazione – Italian National Organization for Standardization). Therefore, Italian standards in this area are exactly the standards uni. In recent decades the development of the international market and facilitate the circulation of goods among countries was necessary in the international regulations are the same for each country.
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