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vii
Quanti er Notation
(Sound level and sound pressure level are expressed uniformly as sound pres-
sure level, distinguished by the use of frequency weighting.)
Measurement value
The time weighting characteristics
F, S, 10 ms I
Lp
Sound pressure
level
A-weighted sound pressure level LAF, LAS, LA10ms LAI
C-weighted sound pressure level LCF, LCS, LC10ms (LCI)
Z-weighted sound pressure level LZF, LZS, LZ10ms (LZI)
Leq
Equivalent
continuous
sound level
Equivalent continuous A-weighted
sound level LAeq LAIeq
Equivalent continuous C-weighted
sound level LCeq (LCIeq)
Equivalent continuous Z-weighted
sound level LZeq (LZIeq)
LE
Sound exposure
level
A-weighted sound exposure level LAE (LAIE)
C-weighted sound exposure level LCE (LCIE)
Z-weighted sound exposure level LZE (LZIE)
Lmax, Lmin
Maximum sound
level
Maximum A-weighted sound level
LAFmax, LASmax, LA10msmax
LAImax
Maximum C-weighted sound level
LCFmax, LCSmax, LC10msmax
(LCImax)
Maximum Z-weighted sound level
LZFmax, LZSmax, LZ10msmax
(LZImax)
LN
Percentile sound
level
Percentile A-weighted sound level LAFNn, LASNn, LA10msNn (LAINn)
Percentile C-weighted sound level LCFNn, LCSNn, LC10msNn (LCINn)
Percentile Z-weighted sound level LZFNn, LZSNn, LZ10msNn (LZINn)
Lpeak
Peak sound level
A-weighted peak sound level (LApeak) ---
C-weighted peak sound level LCpeak ---
Z-weighted peak sound level LZpeak ---
Ltm5
Takt-max sound
level
Takt-max A-weighted sound level
LAtm5 ---
Takt-max C-weighted sound level
(LCtm5) ---
Takt-max Z-weighted sound level
(LZtm5) ---
Z-weighted level is the same as an existing  at-weighted level.
The combination of peak sound level and takt-max with I character-
istics does not exist.
Measurement value shown in brackets ( ) indicates items that can be
displayed as operation steps but are not used or not suitable.
9


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