ČSN - Czech national standards

Acoustics - Reference zero for the calibration of audiometric equipment - Part 6: Reference threshold of hearing test signals of short duration

Available languages: Czech

Available design: Print design

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions

Available languages: Czech

Available design: Print design

Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones

Available languages: Czech

Available design: Print design

Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels

Available languages: Czech

Available design: Print design

Available design: Print design

Acoustics - Reference zero for the calibration of audiometric equipment - Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones (ISO 389-1:1998)

Available design: Print design

Acoustics. Reference zero for the calibration of audiometric equipment. Part 3: Reference equivalent threshold force levels for pure tones and bone vibrators

Available design: Print design

Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators

Available design: Print design

Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz (ISO/TR 389-5:1998)

Available design: Print design

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and difuse-field listening conditions

Available design: Print design