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一、概述1.测量依据JJG178-2007《紫外、可见、近红外分光光度计检定规程》。2.环境条件温度为10℃~30℃,相对湿度≤85%。3.测量标准可见光区透射比标准滤光片,透射比标称值为10%τ、20%τ、40%τ,相对标准不确定度urel≤0.5%,包含因子k95=1.96。4.被测对象可见分光光度计,透射比示值误差:±0.8%τ。5.测量过程用透射比标称值分别为10%τ、20%τ、40%τ左右的标准滤光片,分别在规定波长处,以空气为参比,分
I. Overview 1. Measurement based on JJG178-2007 “UV, visible, near-infrared spectrophotometer test procedures.” 2. Environmental conditions Temperature is 10 ℃ ~ 30 ℃, relative humidity ≤ 85%. 3. Measurement standards The visible light transmittance of the standard filter, the transmittance of the nominal value of 10% τ, 20% τ, 40% τ, the relative standard uncertainty urel ≤ 0.5%, including the factor k95 = 1.96.4. Measurable objects visible spectrophotometer, transmittance transmittance error: ± 0.8% τ. 5. The measurement process with a nominal transmittance of 10% τ, 20% τ, 40% τ about the standard filter, respectively, at the specified wavelength, with air as a reference, points