Respiratory protective devices - Fresh air hose breathing apparatus for use with full face mask, half mask or mouthpiece assembly - Requirements, testing, marking
Esmaltes vítreos y de porcelana. Determinación de la resistencia a la corrosión química. Parte 3: Determinación de la resistencia a la corrosión química por líquidos alcalinos utilizando un recipiente hexagonal o una botella de vidrio tetragonal. (ISO 28706-3:2017).
Maritime navigation and radiocommunication equipment and systems - Automatic identification systems (AIS) - SAR Airborne equipment - Operational and performance requirements, methods of test and required test results (Endorsed by Asociación Española de Normalización in February of 2019.)