Jergers 1970 classification of tympanometry [11].

Table 1: Jergers 1970 classification of tympanometry [11].

Classification	Compliance (ml)	Pressure (dPa)
A	> 0.2	> -99
C1	> 0.2	-100 to -199
C2	> 0.2	-200 to -399
B	< 0.2	> -400