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There are several types of cookies:
Technical cookies that facilitate user navigation and use of the various options or services offered by the web as identify the session, allow access to certain areas, facilitate orders, purchases, filling out forms, registration, security, facilitating functionalities (videos, social networks, etc..).
Customization cookies that allow users to access services according to their preferences (language, browser, configuration, etc..).
Analytical cookies which allow anonymous analysis of the behavior of web users and allow to measure user activity and develop navigation profiles in order to improve the websites.
So when you access our website, in compliance with Article 22 of Law 34/2002 of the Information Society Services, in the analytical cookies treatment, we have requested your consent to their use. All of this is to improve our services. We use Google Analytics to collect anonymous statistical information such as the number of visitors to our site. Cookies added by Google Analytics are governed by the privacy policies of Google Analytics. If you want you can disable cookies from Google Analytics.
However, please note that you can enable or disable cookies by following the instructions of your browser.
BLUE WOOL SCALE
Description and Content: This scale consists of 8 swatches of blue wool dyed to various levels, which fade after exposure to a known amount of light, ranging from very poor light fastness to excellent light fastness, according to EN ISO 105-B01 and EN ISO 105-B02.
Technical Specifications: Rating between 1 and 8, where 1 denotes extremely poor light fastness and 8 is credited as being the most lightfast and permanent.