In the international standard classification, en+1656 involves: Products of the chemical industry.
German Institute for Standardization, en+1656
DIN EN 1656 Berichtigung 1:2010 Chemical disinfectants and antiseptics - Quantitative suspension test for the evaluation of bactericidal activity of chemical disinfectants and antiseptics used in veterinary area - Test method and requirements (phase 2, step 1); German version EN 1656:20
DIN EN 1656:2010 Chemical disinfectants and antiseptics - Quantitative suspension test for the evaluation of bactericidal activity of chemical disinfectants and antiseptics used in veterinary area - Test method and requirements (phase 2, step 1); German version EN 1656:20