Fast reacting ion-exchange resins, pellicular or porous macro-reticulated resins in which the active chemical exchange groups are limited to a coating on the surface of an inactive porous support structure, and other composite structures in any suitable form, including particles or fibres, with diameters of 0,2 mm or less, resistant to concentrated hydrochloric acid and designed to have an exchange rate half-time of less than 10 seconds and capable of operating at temperatures in the range of 373 K (100°C) to 473 K (200°C);
visokoaktivne smole za ionsko izmenjavo, zrnate ali porozne makromrežaste smole, v katerih so aktivne skupine za kemično izmenjavo omejene na površino neaktivne porozne nosilne strukture, druge kompozitne strukture v kakršni koli primerni obliki, vključno z delci ali vlakni premera 0,2 mm ali manj, ki so odporne proti koncentrirani solni kislini in so pripravljene tako, da imajo razpolovni čas izmenjave manjši kakor 10 sekund, in so primerne za obratovanje pri delovnih temperaturah od 373 K (100 °C) do 473 K (200 °C);