电厂用标准气 用于变压器油中溶解气体分析测定等 用途 组分及常用浓度范围 平衡气 变压器油中 H2100ppm-1%,CO100ppm-5000ppm,CO2100ppm-1%,CH4 N2 溶解气体测定 100ppm-5000ppm,C2H6100ppm-5000ppm,C2H4100pm -