DIN IEC 60651:1981-12

DIN IEC 60651:1981-12

Superseded Historical

Sound level meters

€77.20

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IEC 60118:1959/AMD2:1981

IEC 60118:1959/AMD2:1981

Superseded Historical

Amendment 2 - Recommended methods for measurements of the electro-acoustical characteristics of hearing aids

€22.00

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UNE 20640:1981

UNE 20640:1981

Superseded Historical

TESTING AND CALIBRATION OF ULTRASONIC THERAPEUTIC EQUIPMENT

€41.00

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UNE 20641:1981

UNE 20641:1981

Superseded Historical

AUDIOMETERS

€70.00

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NF S31-009 F (07/1981)

NF S31-009 F (07/1981)

Withdrawn Most Recent

Fiche d'interprétation de la norme NF S 31-009 de décembre 1981.

This product is not for sale, please contact us for more information

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BS 6083-3:1981

BS 6083-3:1981

Withdrawn Most Recent

Hearing aids. Methods for measurement of electroacoustical characteristics of hearing aid equipment not entirely worn on the listener

€269.00

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BS 6111:1981

BS 6111:1981

Superseded Historical

Specification for reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts

€95.00

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BS 2813:1981

BS 2813:1981

Superseded Historical

Specification for dimensions of plugs for hearing aids

€269.00

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BS 6083-1:1981

BS 6083-1:1981

Withdrawn Most Recent

Hearing aids Method for measurement of characteristics hearing with induction pick-up coil input

€269.00

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BS 6083-2:1981

BS 6083-2:1981

Withdrawn Most Recent

Methods of measurement electro-acoustical characteristics hearing aids Hearing with automatic gain control circuits

€269.00

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IEC 60118-4:1981

IEC 60118-4:1981

Superseded Historical

Methods of measurement of electro-acoustical characteristis of hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes

€22.00

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IEC 60268-11:1981

IEC 60268-11:1981

Superseded Historical

Sound system equipment - Part 11: Circular for the interconnection of sound system components

€44.00

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IEC 60711:1981

IEC 60711:1981

Superseded Historical

Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts

€88.00

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UNE 20642:1980

UNE 20642:1980

Withdrawn Most Recent

ARTIFICIAL EAR OF THE WIDE BAND TYPE FOR THE CALIBRATION OF EARPHONES USED IN AUDIOMETRY

€41.00

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BS 5966:1980

BS 5966:1980

Superseded Historical

Specification for audiometers

€269.00

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