BS 6951(1988) : 1988被替代
SPECIFICATION FOR THRESHOLD OF HEARING BY AIR CONDUCTION AS A FUNCTION OF AGE AND SEX FOR OTOLOGICALLY NORMAL PERSONS
出版：British Standards Institution
专家解读视频
Describes the range of audiometric frequencies from 125 to 8,000 Hz and for groups of otologically normal persons within the age limits of 18 to 70 years inclusive. Gives the expected value of the median hearing threshold shift relative to a group of persons 18 years of age and the expected statistical distribution above and below the median value. Applicable as descriptive statistics of the hearing levels of populations of various ages. May be used to compare an individual's hearing with the normal distribution of the hearing threshold levels for the person's age group.
ISO 7029 : 2017 - Identical
