NF T31-310-1*NF EN ISO 23900-1:2018 Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 1 : general introduction
2018NF T31-310-1*NF EN ISO 23900-1:2018 Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 1 : general introduction