ISO/IEC 21118-2020 pdf free download.Information technology — Office equipment — Information to be included in specification sheets for data projectors.
ISO/IEC 21118-2020 specifies the information to be included in the specification sheets for front projection type data projectors and the form of specification sheets.
ISO/IEC 21118-2020 is not applicable to units for a rear screen projection.
2 Normative references
ISO 7779: 2018, Acoustics-Measurement of airborne noise emitted by information technology and telecommunications equipment;
ISO 11201, Acoustics- Noise emitted by machinery and equipment- Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections;
IEC 60107-2: 1997, Methods of measurement on receivers for television broadcast transmissions-Part 2 Audio channels- General methods and methods for monophonic channels;
IEC 61947-1, Electronic projection- Measurement and documentation of key performance criteria – Part 1: Fixed resolution projectors.

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