Standard reference zero for the calibration of pure tone air conduction audiometers Specification a standard at frequencies intermediate between those given in Parts 5 and 6 BS 2497
€165.00
Acoustics. Reference zero for the calibration of audiometric equipment Specification a standard reference using an artificial ear complying with BS 4669
Standard reference zero for the calibration of pure tone air conduction audiometers Specification a standard using an acoustic coupler complying with BS 4668
Sound system equipment. Headphones and earphones associated with portable audio Maximum sound pressure level measurement methodology limit considerations General method for "one package equipment"
Specification for octave and one-third octave band-pass filters
€269.00
Specification for an acoustic coupler (IEC reference type) for calibration of earphones used in audiometry
€77.00
Specification for the calibration of hydrophones
€355.00
Specification for hydrophones for calibration purposes
Specification for reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
€95.00
Specification for an artificial ear of the wide band type for the calibration of earphones used in audiometry
Specification for audiometers
Hearing aids Methods for measurement of the performance characteristics hearing under simulated in situ working conditions
€193.00
Specification for occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts
Specification for integrating-averaging sound level meters
Safety of machinery. Electrical equipment machines Requirements for HV voltages above 1000 V a.c. or 1500 d.c. and not exceeding 36 kV
€374.00
