1. in the case of workers working in areas not fixed. Continue measuring, as well as people working in one of the areas where the constant noise level without saving the data measuring loud sound at various levels and the duration of the works and the value calculated according to a formula.2. in the case of work in different areas, different sound levels, measuring operation, as well as people working in one of the areas where the constant noise level (according to 2.2. Clause 1-3) but do the measuring and recording the value of the work of the workers moved to perform. Measuring the sound level in the employee's work area, it has moved to, and how long to work at that level of sound, and is calculated according to a formula. Calculation of the average sound level employees has been constantly working throughout the eight hours with the following formula:
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