Aerospace series - Fasteners, externally threaded, in heat resisting nickel base alloy NI-PH2601 (Inconel 718) - Classification 1275 MPa/650 °C - Manufacturing method optional - Technical specification (Endorsed by AENOR in May of 2009.)
Edition 2009-05-01

Aerospace series - Fasteners, externally threaded, in heat resisting nickel base alloy NI-PH1302 (Waspaloy) - Classification: 1210 MPa/730 °C - Manufacturing method optional - Technical specification (Endorsed by AENOR in April of 2009.)
Edition 2009-04-01

Ventilation for buildings - Components/products for residential ventilation - Required and optional performance characteristics
Edition 2021-10-20

Intelligent transport systems - eSafety - eCall OAD for multiple Optional Additional Datasets
Edition 2021-06-16

Multimedia systems and equipment- Colour measurement and management- Part 2-5: Colour management- Optional RGB colour space- opRGB
Edition 2008-07-23

TDMA Third Generation Wireless Optional Mobile Station Facilities
Edition 2001-04

HSUL 12 LPDDR2 and LPDDR3 I/O with Optional ODT
Edition 2014-04

Embedded MultiMediaCard (eMMC) Mechanical Standard, with Optional Reset Signal
Edition 2009-07

IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems - Amendment 2: Master-Slave Optional Alternative Terminology
Edition 2022