Integrated Services Digital Network (ISDN) - Facsimile group 4 class 1 equipment on the ISDN - End-to-end protocol tests (Interconnection capability testing); English version ETS 300155:1995
Edition 1995-08

Acoustics; statistical methods for determining and verifying stated noise emission values of machinery and equipment; part 4: methods for stated values for batches of machines; (identical with ISO 7574-4:1985); german version EN 27574-4:1988
Edition 1989-03

Information technology - Computer graphics - Graphical Kernel System (GKS) language bindings - Part 4: C
Edition 1995-06

Terminal Equipment (TE) - Facsimile group 4 class 1 equipment on the Integrated Services Digital Network (ISDN) - Terminal testing; English version ETS 300280:1994/A1:1996
Edition 1996-10

Information technology; computer graphics; Programmer's Hierarchical Interactive Graphics System (PHIGS) language bindings; part 4: C
Edition 1991-12

Information technology; computer graphics; Programmer's Hierarchical Interactive Graphics System (PHIGS) language bindings; part 4: C; amendment 1
Edition 1994-05

Information technology; computer graphics; Graphical Kernel System for three dimensions (GKS-3D) language; part 4: C
Edition 1991-12

Paper, board and pulps; fibre furnish analysis; part 4: Graff "C" staining test
Edition 1990-12