ABSTRAK
Getaran lengan dan tangan serta kebisingan merupakan faktor fisika yangmemiliki potensi bahaya bagi kesehatan pekerja konstruksi dimana salah satunyadisebabkan oleh penggunaan portable power tools. Berdasarkan hal tersebutdilakukan analisis terhadap durasi maksimum penggunaan portable power toolsyang aman melalui standar dari keputusan menteri tenaga kerja no. KEP-51/MEN/1999 berikut langkah lain bagi pengendalian getaran dan kebisingan.Pendekatan yang digunakan yaitu human vibration assessment berdasarkan ISO5349-2 (2001) dan pengukuran occupational noise. Hasil penelitian menyarankandurasi penggunaan alat yang optimal dan aman adalah ketika dihitung berdasarkannilai pajanan getaran dengan syarat pekerja wajib menggunakan alat pelindungdengar dengan spesifikasi tertentu.

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Abstract
Hand-arm vibration and noise are physical factors which have hazard potentiallyto the health of construction workers, which is one of them cause by the use ofportable power tools. Based on this, analysis was performed on the maximumsafely usage time of portable power tools through the standards of the laborminister's decision no. KEP-51/MEN/1999 along with other steps for controllingvibration and noise. The approach used is human vibration assessments based onISO 5349-2 (2001) and occupational noise measurement. The results suggest thatthe optimum and safe usage time is a value that calculated based on vibrationexposure on the condition of workers required to use hearing protective deviceswith a particular specification.