Số hiệu tiêu chuẩn
EN 60645-4
Tên tiêu chuẩn
Audiometers - Part 4: Equipment for extended high-frequency audiometry (IEC 60645-4:1994)
Ngày phát hành
1995-01-00
Tiêu chuẩn tương đương
DIN EN 60645-4 (1995-06), IDT * BS EN 60645-4 (1995-08-15), IDT * NF S31-001-4 (1995-05-01), IDT * IEC 60645-4 (1994-09), IDT * SN EN 60645-4 (1995), IDT * OEVE EN 60645-4 (1995-05-23), IDT * PN-EN 60645-4 (1999-12-30), IDT * SS-EN 60645-4 (1996-09-27), IDT * UNE-EN 60645-4 (1997-12-12), IDT * STN EN 60645-4 (2002-01-01), IDT * CSN EN 60645-4 (1997-03-01), IDT * DS/EN 60645-4 (1996-01-11), IDT * NEN 10645-4:1995 en;fr (1995-03-01), IDT
Tiêu chuẩn liên quan
EN 60645-1 (1994-08) * IEC 60645-1 (1992-10) * ISO 266 (1975-07) * ISO 389-7 * ISO 8253-1 (1991) * ISO 8253-2 (1992-11)
Từ khóa
Acoustic * Acoustic signals * Acoustic testing * Acoustics * Adjustments * Audiograms * Audiometers * Audiometry * Auditory threshold * Bone conduction * Bone vibrator * Calibration * Chain cases * Definitions * Electrical engineering * Electroacoustics * Frequencies * Headphones * Hearing ability tests * High frequencies * Instruments * Letterings * Loudspeakers * Measuring instruments * Noise * Operational instructions * Precision * Properties * Radiofrequency apparatus * Short-term measurement * Signal level * Sound * Sound intensity * Sound radiation * Sound transducer * Specification (approval) * Switches * Test signals * Testing * Sound levels