The identity of breakdown products formed which at any time during the study are present in quantities ≥ 10 % of the active substance added, a mass balance to account for at least 90 % of the applied radioactivity, as well as photochemical halflife must be reported.
Määrata tuleb sellised lagunemissaadused, mida kogu uuringu vältel leidub koguses ≥ 10 % lisatud toimeainest, massitasakaal, mis vastab vähemalt 90 % kasutatud radioaktiivsusest ja fotokeemiline poolestusaeg ning esitada saadud andmed.