Test methods for continuous silicon carbide fiber—Part 2:Diameter of single-filament fiber.
全国宇航技术及其应用标准化技术委员会(SAC/TC 425)
GB/T 34520的本部分规定了采用截面法（方法A)、径向法（方法B)和千分尺法（方法C)测试连续碳化硅（silicon carbide，SiC)单纤维直径的测试环境、试样、测试设备及材料、测试程序、测试结果计算和测试报告。本部分适用于近圆实心连续SiC单纤维的直径测试。
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