A COMPARISON OF PERFORMANCE OF VIBRATION ABSORBED MATERIALS IN CAR REPAIR SHOPS MUEANG PHAYAO DISTRICT, PHAYAO PROVINCE

Abstract

          This quasi-experimental research aimed to measure the levels of hand and arm vibration in thirty workers by using
anti-vibration materials consist of anti-vibration gloves and insulator compared with non-antivibration material(bared
hand) during working with air block machine in car repair shops where were in Mueang Phayao district, Phayao Province.
The results showed that the average levels of hand and arm vibration whiledid not use anti-vibration materials was 3 m/
s² (exceed limit value ISO5349, Exposure Action Value 2.5 m/s²). The comparison of vibration levelby paied t-test between
using anti-vibration 4 types materials was differrent significantly with non using anti-vibration/barehand(p-value <0.05).
Furthermore, the average vibrations levels ofair block machine which was usedanti-vibration materials such as butyl rubber
gloves, polyethylene vinyl acetaterubber gloves,butyl rubber insulator, polyethylene vinyl acetaterubber insulator were
2.13, 2.05, 2.39 and 2.30 m/s² respectively. Finally, we found that polyethylene vinyl acetaterubber gloves had highest
absorbed vibration during work with air block machine (2.05 m/s²) and almost of workers satisfied butyl rubber insulator,
polyethylene viny lacetaterubber insulator andbutyl rubber gloves, respectively.