Residues 9 : One or more of the substances present in a biocidal product which remains as a result of its use, including the metabolites of such substances and products resulting from their degradation or reaction
Health and Safety Executive (HSE), Glossary of Terms on Biocides and Pesticides, HSE, Merseyside, England, UK 2013. http: //www.hse.gov.uk/biocides/glossary.htm, (Hlth and Sfty - Brit) {701}