NTON 12 009 - 19 Materiales de Construcción. Adoquines de Concreto. Especificaciones y Evaluación de la Conformidad (Nicaraguan Mandatory Technical Standard (NTON) No. 12 009 - 19: "Construction materials. Concrete setts. Specifications and conformity assessment") (20 pages, in Spanish)
· The notified Standard establishes the physical and mechanical requirements to be met by concrete setts, as well as their classification and the relevant conformity assessment procedures, including sampling and test methods.
· It applies to domestically manufactured and imported concrete setts used as bearing surfaces in paved areas.
· Note: This Standard does not apply to setts classified as type three or specially-designed setts.