Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: EN 60645-4:1995
• Năm ban hành / Publication date: 1995
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Audiometers - Part 4: Equipment for extended high-frequency audiometryIEC 60645-4:1994
• Phạm vi áp dụng / Scope of standard: This International Standard specifies a means of describing the physical characteristics of audiometric test and reference signals of short duration and methods for their measurement. The standard also specifies a psychoacoustic method for determining the level of the test signal in terms of hearing level. Requirements for the information to be given in an instruction manual are also included. This standard does not describe the method of use for test signals of short duration or specify the waveforms to be used in clinical practice.