Normas ISO

Geometrical product specifications (GPS) -- General concepts-- Part 3: Toleranced features

Non-destructive testing -- Acoustic emission testing (AT) -- Leak detection by means of acoustic emission

Safety of machinery -- Permanent means of access to machinery-- Part 4: Fixed ladders

Safety of machinery -- Permanent means of access to machinery-- Part 3: Stairs, stepladders and guard-rails

Safety of machinery -- Permanent means of access to machinery-- Part 2: Working platforms and walkways

Safety of machinery -- Permanent means of access to machinery-- Part 1: Choice of fixed means and general requirements of access