This standard is an epoch applied to the inner and outer surfaces of concrete for the purpose of waterproofing and anticorrosion of concrete structures for water treatment.
KS F 4921-2011 history
2021KS F 4921-2021 Epoxy resin material for waterproof and anticorrosion of concrete structure
2016KS F 4921-2016 Epoxy resin material for waterproof and anticorrosion of concrete structure
2011KS F 4921-2011 Epoxy resin material for waterproof and anticorrosion of concrete structure
1999KS F 4921-1999 Epoxy resin material for waterproof and anticorrosion of concrete structure