因此,由于浓度降低,气体混合物变得逐渐变得更加难以混合和分析,因此必须放松规格。Said another way, a higher concentration results in a tighter blend tolerance, higher analytical accuracy, and higher process accuracy (i.e. smaller values), while a lower concentration results in a looser blend tolerance, lower analytical accuracy and lower process accuracy (i.e. larger values). Other factors affect specifications as well, including characteristics of the minor component, the type of balance gas or liquid used, instrument limitations, reference standard accuracy, and the purity of the raw materials used to make the blend.