This document specifies a test method (phase 1) and the minimum requirements for sporicidal activity of chemical disinfectant or antiseptic products that form a homogeneous, physically stable preparation when diluted with water. Products can only be tested at a concentration of 80 % or less as some dilution is always produced by adding the test organisms.This document applies to products that are used in in agricultural (but not crop protection), domestic service, food hygiene and other industrial fields, institutional, medical and veterinary applications.NOTE 1This method cannot be applied for testing sporicidal activity of a product against spores of Clostridium spec.NOTE 2This document does not evaluate the activity of a product for an intended use. More specific test methods described in European Standards (see introduction) are used for further assessement of the efficacy of chemical disinfectants and antiseptics for a defined purpose.NOTE 3This method corresponds to a phase 1 test (see Annex E).