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一、概述1.测量方法GB/T228.1-2010《金属材料%拉伸试验%第一部:室温试验方法》。2.评定依据JJF1059-1999《测量不确定度评定与表示》。3.环境条件试验室温度:(20±2)℃,相对湿度:(50±5)%。4.测量标准WE-300型万能试验机(数显),检定证书给出为1级试验机(示值相对最大误差为±1%)。
I. Overview 1. Measurement methods GB / T228.1-2010 “% Tensile metal materials% Part I: room temperature test method.” 2. Evaluation based on JJF1059-1999 “Measurement Uncertainty Assessment and said.” 3. Environmental conditions Laboratory temperature: (20 ± 2) ℃, relative humidity: (50 ± 5)%. 4. Measurement standards WE-300 universal testing machine (digital display), test certificate given as a test machine (the relative maximum error of indication ± 1%).