产品详情
502-319 SAAR4005 Ore Standard, 30g, C=1.42%, S=1.41% 30g 矿石标样
502-320 SAAR4006 Ore Standard, 4.19% C, 4.07% S 30g 矿石标样
502-372 SAAR4007 Ore Standard, 30g, C=7.62%, S=3.25% 30g 矿石标样
国际原子能机构IAEA稳定同位素标样,IAEA-603,
USGS42,USGS同位素标样
IEAE原子能机构同位素标样,IAEA-N-1
碳硫标样