General methods of test for pigments and extenders - Part 16: Determination of relative tinting strength (or equivalent colouring value) and colour on reduction of coloured pigments; visual comparison method (ISO 787-16:1986); German version EN ISO 787-16:1995
Edition 1995-10

Telecontrol equipment and system - Part 6-701: Telecontrol protocols compatible with ISO standards and ITU-T recommendations; functional profile for providing the TASE.1 application service in end systems (IEC 60870-6-701:1998); German version EN 60870-6-701:1998, text in English
Edition 1999-12

Television systems - Specification of the D-MAC/packet system; English version ETS 300355:1994
Edition 1994-10

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Signalling network layer for circuit-mode basic call control - Part 4: Test Suite Structure and Test Purposes (TSS&TP) specification for the user; English version ETS 300403-4:1997
Edition 1997-11

Television systems - Specification of the D2-MAC/packet system; English version ETS 300250:1993
Edition 1994-08

Integrated Services Digital Network (ISDN); user-network interface layer 3; specification for basic call control; english version ETS 300102-1:1990
Edition 1992-02