Geotechnical investigation and testing - Graphical presentation of drill samples and other direct explorations
Edition 2023-02

Identification and characterisation of radiological images in medical diagnosis; direct and indirect radiography
Edition 1992-12

Image quality assurance in diagnostic X-ray departments - Part 3: Tests for constancy in direct radiography
Edition 2000-09

Assembly with direct connection for sprinkler systems and extinguishing systems with open nozzles - Requirements and testing
Edition 2025-07

Assembly with direct connection for sprinkler systems and extinguishing systems with open nozzles - Requirements and testing
Edition 2012-09

Downstream catalytic converters for residential solid fuel burning appliances - Part 1: Test method for the determination of the efficiency of catalytic converters with by-pass directly installed downstream of the flue gas outlet for wood log local space heater with a maximum heat output of 15 kW
Edition 2024-04

State of railway vehicles - Brake - Part 11: Function and tightness of the brake for direct braking on powered traction unit and indirect braking on connected vehicles
Edition 2022-12

Workplace exposure - Guide for the use of direct-reading instruments for aerosol monitoring - Part 1: Choice of monitor for specific applications
Edition 2014-02

Workplace exposure - Guide for the use of direct-reading instruments for aerosol monitoring - Part 2: Evaluation of airborne particle concentrations using Optical Particle Counters
Edition 2014-02

Workplace exposure - Guide for the use of direct-reading instruments for aerosol monitoring - Part 3: Evaluation of airborne particle concentrations using photometers
Edition 2014-09