Communication cables - Specifications for test methods - Part 4-7: Environmental test methods - Damp heat steady state
Edition 2008-01

Information technology - Data centre facilities and infrastructures - Part 4-7: Cooling Efficiency Ratio
Edition 2020-04

Electrostatics - Part 4-7: Standard test methods for specific applications - Ionization
Edition 2017-03

Electricity metering data exchange - The DLMS/COSEM suite - Part 4-7: DLMS/COSEM transport layer for IP networks
Edition 2016-12

Connector sets and interconnect components to be used in optical fibre communication systems - Product specifications - Part 7-4: LC-PC simplex terminated on IEC 60793-2-50 category B1.1 and B1.3 singlemode fibre with full zirconia ferrule for category C
Edition 2011-05

Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
Edition 2010-06

Connectors for electronic equipment - Part 7-4: Detail specification for 8-way, unshielded, free and fixed connectors, for data transmissions with frequencies up to 250 MHz
Edition 2010-07

Industrial communication networks - Fieldbus specifications - Part 4-7: Data-link layer protocol specification - Type 7 elements
Edition 2008-02

Electromagnetic compatibility (EMC). Part 4-7: Testing and measurement techniques - General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto
Edition 2002-10

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz and from 1,6 MHz to 30 MHz. Part 4-7: Portable low voltage decoupling filters - Safety requirements
Edition 2005-07