Private Telecommunication Network (PTN) - Signalling protocol at the S-reference point - Circuit mode basic services; English version ETS 300192/A1:1996
Edition 1996-08

Integrated Services Digital Network (ISDN); Connected Line Identification Presentation (COLP) and Connected Line Identification Restriction (COLR) supplementary services; functional capabilities and information flows; english version ETS 300096:1992
Edition 1992-11

Integrated Services Digital Network (ISDN) - Call Forwarding Busy (CFB) supplementary service - Functional capabilities and information flows; English version ETS 300203:1994
Edition 1995-06

Integrated Services Digital Network (ISDN) - Call Forwarding Unconditional (CFU) supplementary service - Functional capabilities and information flows; English version ETS 300204:1994
Edition 1995-06

Integrated Services Digital Network (ISDN) - Call Deflection (CD) supplementary service - Functional capabilities and information flows; English version ETS 300206:1994
Edition 1995-06

European digital cellular telecommunications system (phase 2) - Mobile radio interface signalling layer 3, general aspects; English version ETS 300556:1995
Edition 1995-08

Ambient air quality - Atmospheric measurements near ground with FTIR spectroscopy; German version EN 15483:2008
Edition 2009-02

Mechanical vibration - Measurement and evaluation of coupling forces for assessment of vibration exposure of the hand-arm system
Edition 2013-02

Integrated Services Digital Network (ISDN) - Call Forwarding No Reply (CFNR) supplementary service - Functional capabilities and information flows; English version ETS 300205:1994
Edition 1995-06

Acoustics - Test methods for the qualification of the acoustic environment - Part 1: Qualification of free-field environments (ISO 26101-1:2021); German version EN ISO 26101-1:2022
Edition 2023-03