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The Control of Noise at Work Regulations 2005
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- UK Statutory Instruments
- 2005 No. 1643
- SCHEDULE 1
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Regulation 2(1)
SCHEDULE 1E+W+S
This schedule has no associated Explanatory Memorandum
PART 1 E+W+SDaily Personal Noise Exposure Levels
1. The daily personal noise exposure level, LEP,d, which corresponds to LEX,8h defined in international standard ISO 1999: 1990 clause 3.6, is expressed in decibels and is ascertained using the formula:E+W+S
where—
T e is the duration of the person's working day, in seconds;
T0 is 28,800 seconds (8 hours); and
L Aeq,Teis the equivalent continuous A-weighted sound pressure level, as defined in ISO 1999: 1990 clause 3.5, in decibels, that represents the sound the person is exposed to during the working day.
2. If the work is such that the daily exposure consists of two or more periods with different sound levels, the daily personal noise exposure level (LEP,d) for the combination of periods is ascertained using the formula:E+W+S
where—
n is the number of individual periods in the working day;
T i is the duration of period i;
(LAeq,T)i is the equivalent continuous A-weighted sound pressure level that represents the sound the person is exposed to during period i; and
is equal to Te, the duration of the person's working day, in seconds.
Regulation 2(1)
PART 2 E+W+SWeekly Personal Noise Exposure Levels
The weekly personal noise exposure, LEP,w, which corresponds to
defined in international standard ISO 1999: 1990 clause 3.6 (note 2) for a nominal week of five working days, is expressed in decibels and is ascertained using the formula:
where—
m is the number of working days on which the person is exposed to noise during a week; and
(LEP,d)i is the LEP,d for working day i.
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