{"id":53,"count":0,"description":"Comparative guidelines for EN 779:2012 and ISO 16890:2017. Under ISO 16890:2017, filters are divided into 4 classes: ISO Coarse, ISO ePM10, ISO ePM2,5, and ISO ePM1. Under EN 779:2012, however, filters were divided into 3 efficiency classes: for coarse (C), Medium (M) or Fine (F) particles.","link":"https:\/\/www.ariafil.it\/en\/cl\/comparisons\/","name":"Comparisons","slug":"comparisons","taxonomy":"classificazione","meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Comparative guidelines for EN 779:2012 and ISO 16890:2017 - Ariafil<\/title>\n<meta name=\"description\" content=\"Guidelines of correspondence between EN 779:2012 and ISO 16890:2017. 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