UNE-EN ISO 11890-1:2024

This document is one of a series of standards dealing with the sampling and testing of coating materialsand their raw materials.This document is applicable to the determination of VOC content if the cases are as follows:Case 1: single-pack coating materials other than case 3-and the expected VOC content is greater than amass fraction of 5 % which cannot be measured by ISO 11890-2 due to chemical reactions;Case 2: multi-pack coating materials other than case 3, including-coating materials containing reactivediluent, and the expected VOC content is greater than a mass fraction of 1 % ;Case 3: radiation curable coating materials and the expected VOC content is greater than a mass fractionof 5 %; . Radiation curable coating materials in this document include coating materials that are curedby UV, electron beam, and other radiation methods.If the system of the first case contains SVOC, the VOC result may be influenced by SVOC, see Annex D. Inthis case ISO 11890-2 shall be preferred. ISO 11890-1 cannot be used for the determination of the SVOCcontent. In water-borne coating materials, if the water content is much greater than VOC content andVOC content is less than a mass fraction of 10 %, ISO 11890-2 shall be preferred.In the third case, the main purpose measured is VOC. However, it needs to be clarified that this VOCcontent can also contain SVOC. The real VOC content may be lower than the VOC content measured byISO 11890-1.This method assumes that the volatile matter is either water or organic. However, other volatileinorganic compounds can be present and might need to be quantified by another suitable method andallowed for in the calculations. The method defined in this document is not applicable for determinationof water content.