Sound system equipment - Part 3: Amplifiers
Edition 2018-06

Sound system equipment - Part 4: Microphones
Edition 2018-11

Sound system equipment - Part 21: Acoustical (output-based) measurements
Edition 2018-12

Helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type VHS. Part 5: D-VHS
Edition 2004-10

Connectors for electronic equipment - Tests and measurements. Part 25-5: Test 25e - Return loss
Edition 2004-09

Railway applications - Fixed installations - Traction transformers
Edition 2010-05

Cable networks for television signals, sound signals and interactive services - Part 13: Optical systems for broadcast signal transmissions
Edition 2010-02

Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Part 1: Methods of measuring and specifying the performance of system components
Edition 2010-04

Railway applications - Fixed installations - Traction transformers
Edition 2003-03

Methods of measurement for equipment used in digital microwave radio transmission systems. Part 2: Measurements on terrestrial radio-relay systems. Section 11: Cross-polarization interference canceller
Edition 1997-01