Noise Exposure Limitations

OH & S Noise Regulation - Exposure Limits

For more information refer to Occupational Health & Safety Noise Regulation

Factors

Specifications

1. Occupational Noise Level Exposure Limits. Figures to be prorated if not specified. Exposure Level (dBA) Duration (Where applicable, values have been rounded to nearest whole digit )

82 - 16 hours

83 - 12 hours

84 - 10 hours

85 - 8 hours

88 - 4 hours

91 - 2 hours

94 - 1 hour

97 - 30 min

100 - 15 min

103 - 8 min

106 - 4 min

109 - 2 min

112 - 1 min

115 and greater 0

2. Selection of Hearing Protectors. Maximum Noise Level (dBA) CSA Class of Hearing Protector 85-89 C
90-95 B
96-105 A
Greater than 105 A plug + A or B muff
3. Permissible background noise conditions for audiometric testing for audiometric testing Octave Band Centre Frequency Maximum Levels (dBA) 500 30
1000 30
2000 37
4000 47
8000 52