Sebagai upaya mengendalikan kebisingan lingkungan yang mengganggu kegiatan manusia dan mengancam tingkat kenyamanan dan kesehatan manusia, maka Kementrian Negara Lingkungan Hidup mengeluarkan Keputusan No 48 pada tahun 1996. Makalah ini bertujuan untuk mengkaji contoh metode sampling pengukuran yang terlampir pada keputusan itu dengan menganalisis hasil pengukuran kebisingan per jam di beberapa kota di Indonesia, dan untuk mengusulkan sebuah pedoman pengukuran baku. Hasil analisis sampling pengukuran menunjukkan bahwa perbedaan terbesar adalah 1,8 dB(A) dengan simpangan baku 0,8 dB(A). Nilai ini masih dalam toleransi yang diberikan oleh keputusan tersebut yaitu sebesar 3 dB(A). Maka empat sampel data selama siang hari dan tiga sampel data selama malam hari dalam interval waktu seperti yang dicontohkan pada lampiran keputusan tersebut dapat diusulkan sebagai metode sampling kebisingan lingkungan.
A large number of industrial needs to the sound level meter (SLM) calibration has encouraged the laboratory to develop a qualified calibration system. As one of the SLM calibration methods required by the standard, the coupler method is considered as the most convenient to be implemented, especially for the secondary laboratory. Therefore, the aim of this work is to compare the SLM calibration for the frequency weighting parameter by this method using the instrument standards that comprise of a multifunction acoustic calibrator and a working standard of pressure microphone (WS2-P Microphone). Moreover, the result of frequency weighting calibration using these standards, therefore, is compared to the reference value required by IEC 61672-1. From the result, the deviation values of these standards are obtained relative to the reference. At the low to middle frequencies, the deviation values are slight relatively, while at the higher frequency, it tends to bigger. In addition, these methods also support the development system of noise dosimeter and sound level meter calibration that still under research through the scheme of Incentive Research Program for the National Innovation System in 2020.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.