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我厂于1986年从意大利引进了 FIAT45-66DT,55-90,70-90DT 三种型号的拖拉机。FIAT 拖拉机的噪声,在该国是按0ECD 有关标准进行测试的,为了解其噪声情况,我厂对上述引进的拖拉机按 GB3871—83《农业拖拉机试验方法》进行了噪声试验,其结果介绍如下:一、环境噪声与被测试拖拉机匹配的发动机技术规格见表1。静态与动态环境噪声试验结果见表2。所测噪声值与 JB/NQ37—86《拖拉机产品质量分等标准》对照并与国内外同类产品的噪声值作了比较,情况见表3。
I plant in 1986 from Italy introduced FIAT45-66DT, 55-90,70-90DT three types of tractors. FIAT tractor noise, the country is in accordance with the relevant standards of the 0ECD test, in order to understand the noise situation, I plant the introduction of the tractor according to GB3871-83 “agricultural tractor test method” conducted a noise test, the results are as follows: First, the environmental noise and the tested tractor matching engine specifications in Table 1. Static and dynamic environmental noise test results in Table 2. Measured noise value and JB / NQ37-86 “tractor product quality standards” and compared with the noise of similar products at home and abroad made a comparison, as shown in Table 3.