NOISE ASSESSMENT USING SOUND LEVEL METER (SLM)

Abstract

In noise assessment a hearing noise level cannot be generalized to be similar for workshop activities as noise exposure various depending on application work activities, types of machine and material, layout of workshop design and also duration of noise exposure. This study for occupational, focused on the nature study of the activities undertaken rather than a general noise measurement. Therefore, the objective of this study was to assess the level of noise generated in a teaching workshops and compare the findings with the stated guidelines. This study only focused on the maximum level of sound production in the workshop base on total number of students involved at a certain period of time. The noise level generated in this workshop had never been assessed before. The management believe, potential risk to the students is still in the safe limit. Time weight average (TWA) and dose percentage method was used to produce the profile of the noise reading measured by the sound level meter in 8 hours every day. Exposure maximum noise level is a determining factor that has been identified by performing output data analysis from time measurements exposure of noise level meters in three days observation. Data in three days were finding total TWA amount and dose each noise level depending with time exposure. In summary, this finding can be used appropriately for the same activity for this shop only Evaluation measurements should be taken if it involves different activities in the workshop. During the observation, possibility of measuring income difference is not that significant unless there is unexpected activity when measurements are taken. This studies also developed for noise risk matrix after identify the measurement location with dose percentage and TWA value all each station also states rating of noise.