范围:本标准适用于甘蔗、甜菜加工业，起到调节pH值和蔗汁清净作用; 主要技术内容:制糖工业助剂石灰等级与质量要求项     目                                                                                      要     求优级                       一级有效CaO含量，（质量分数，以干基计），w%                ≥97.0                    ≥95.0镁和碱金属（质量分数）， w%                                                       ≤3.6无机砷（以Ａs计），mg/kg                                                           ≤3.0氟（F），mg/kg                                                                            ≤150铅（Pb），mg/kg                                                                          ≤2.0酸不溶物，w/%                                                                               ≤1.0灼烧减量， w/%                                                                              ≤10.0