Số hiệu tiêu chuẩn
IEC 60118-4*CEI 60118-4
Tên tiêu chuẩn
Hearing aids. Part 4 : Magnetic field strength in audio-frequency induction loops for hearing aid purposes
Ngày phát hành
1981-00-00
Tiêu chuẩn tương đương
DIN EN 60118-4 (1999-08), IDT * DIN IEC 60118-4 (1991-11), IDT * DIN IEC 60118-4 (1984-11), IDT * BS 6083-4 (1981-12-31), MOD * BS EN 60118-4 (1998-11-15), IDT * GB/T 11454 (1989), IDT * EN 60118-4 (1998-08), IDT * prEN 60118-4 (1998-03), IDT * NF C97-610 (1986-08-01), IDT * NF C97-624 (1998-12-01), IDT * HD 450.4 S1 (1984), IDT * SEV-ASE 3032-4 (1981), IDT * SN EN 60118-4 (1998-08), IDT * OEVE EN 60118-4 (1998-10-02), IDT * OEVE HD 450.4 S1 (1994-10-12), IDT * PN-EN 60118-4 (2002-09-15), IDT * PN-EN 60118-4 (2003-04-30), IDT * SS-IEC 118 (1986-09-15), MOD * SS-EN 60118-4 (1998-11-27), IDT * UNE 20603-4 (1982-10-15), IDT * UNE-EN 60118-4 (2001-02-13), IDT * TS 6659 (1989-03-14), IDT * TS 6659 EN 60118-4 (2002-04-24), IDT * DS/IEC 118-4 (1982), IDT * NEN 10118-4 (1982), IDT * STN EN 60118-4 (2001-06-01), IDT * CSN EN 60118-4 (1999-06-01), IDT * NEN-EN-IEC 60118-4:1998 en;fr (1998-09-01), IDT * NEN 10118-4:1988 en;fr (1988-08-01), IDT
Từ khóa
Acoustics * Audiofrequencies * Audiometry * Electrical engineering * Electroacoustics * Electromagnetic induction * Electromagnetism * EMC * Field strength (electric) * Frequencies * Hearing aids * Induction * Induction loops * Languages * Magnetic field measurement * Magnetic field strength * Magnetic fields * Magnetism * Measurement * Measuring techniques * Radiotelephony * Voice frequency