NF P85-220-4*NF EN 15651-4:2017 Sealants for non-structural use in joints in buildings and pedestrian walkways - Part 4 : sealants for pedestrian walkways
2017NF P85-220-4*NF EN 15651-4:2017 Sealants for non-structural use in joints in buildings and pedestrian walkways - Part 4 : sealants for pedestrian walkways