1CS83.040.20G49中华人民共和国国家标准GB/T3780.27-2020炭黑第27部分:用圆盘式离心光学沉积测量法测定聚集体尺寸分布Carbon black-Part 27:Determination of aggregate size distribution by disccentrifuge photosedimentometry(ISO 15825:2017,Rubber compounding ingredients-Carbon black-Determination of aggregate size distribution by disc centrifugephotosedimentometry,MOD2020-11-19发布2021-10-01实施国家市场监督管理总局国家标准化管理委员会发布