GB/T 15445.2-2006粒度分析结果的表述　第2部分：由粒度分布计算平均粒径/直径和各次矩.pdf

ICS 19.120 A 28 石黔 中 华 人 民 共 和 国 国 家 标 准 GB/T 15445.2-2006/ISO9276-2:2001 粒度分析结果的表述 第2部分:由粒度分布计算平均 粒径/直径和各次矩 Representationofresultsofparticlesizeanalysis- Part2:Calculationofaverageparticlesizes/diametersand momentsfromparticlesizedistibutions [ISO9276-2:2001，IDT] 2006-02-05发布 2006-08-01实施 中华人民共和国国家质量监督检验检疫总局 发 布 中 国 国家 标 准 化 管 理 委 员会 GB/T 15445.2-2006/ISO9276-2:2001 目 次 前言 ····································································································，···········一· 班 引言 ·····································，············································································，··… N 1 范围 ·····················································································，·······················…… 1 2 规范性引用文件 ································································································…… 1 3 符号和缩写 ·······································，····························································…… I 4 矩的基本定义 ··································································································…… 2 5 平均粒径 ····································································································…… 3 5.1 算术平均粒径 .·····························…… 3 5.2 加权平均粒径 ······························································································，·…… 3 5.3 从个数或体积频度分布q,(x)或q,(x)计算从.和平均粒径·····································…·…3 5.4 由给定的直方图所表述的个数或体积频度分布q.(x)或q,(x)计算从，······················…·…4 5.5 体积比表面积的计算 ······················································