UNE-EN 60068-2-74:1999/A1:2018 Environmental testing - Part 2-74: Tests - Test Xc: Fluid contamination (Endorsed by Asociación Española de Normalización in August of 2018.)
2018UNE-EN 60068-2-74:1999/A1:2018 Environmental testing - Part 2-74: Tests - Test Xc: Fluid contamination (Endorsed by Asociación Española de Normalización in August of 2018.)
2000UNE-EN 60068-2-74:2000 Environmental testing. Part 2: Tests. Test Xc: Fluid contamination.