标准检索

Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section 3: Seismic tests

Measuring relays and protection equipment - Part 24: Common format for transient data exchange (COMTRADE) for power systems

Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements

Measuring relays and protection equipment - Part 27: Product safety requirements

Electrical Relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests

Sealing test for pressurized waveguide tubing and assemblies

Scales and sizes for plotting frequency characteristics and polar diagrams

Packaging of winding wires - Part 3-2: Taper barrelled delivery spools - Specification for returnable spools made from thermoplastic materials

Packaging of winding wires - Part 3-4: Taper barrelled delivery spools - Basic dimensions of containers for taper barrelled delivery spools

Packaging of winding wires - Part 3-5: Taper barrelled delivery spools - Specification for spool containers made from thermoplastic material

Sound system equipment - Part 10: Peak programme level meters

Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index

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

Sound system equipment - Part 22: Electrical and mechanical measurements on transducers

Sound system equipment - Part 23: TVs and monitors - Loudspeaker systems

Sound system equipment - Part 24: Headphones and earphones - Active acoustic noise cancelling characteristics

Sound system equipment - Part 3: Amplifiers

Sound system equipment - Part 4: Microphones

Sound system equipment. Part 6: Auxiliary passive elements

Amendment 1 - Sound system equipment - Part 7: Headphones and earphones