多元素标准液 I (溶于油中) c(Ba) = 8 g/kg; c(Ca) = 4 g/kg; c(Mg) = 1 g/kg; c(Zn) = 1,6 g/kg CertiPUR
油中标准水 standard for oil samples for coulometric Karl Fischer Titration (15-30 ppm) apura
标准油 for atomic absorption spectroscopy
钴溶于油中标准液 1 kg/l c(Co in standard oil) = 1 g/kg CertiPUR
磷酸溶于油中标准液 1 kg/l c(P in standard oil) = 1g/kg CertiPUR
钾溶于油中标准液 1 kg/l c(K in standard oil) = 1 g/kg CertiPUR
钠溶于油中标准液 1 kg/l c(Na in standard oil) = 1 g/kg CertiPUR
钙溶于油中标准液 1 kg/l c(Ca in standard oil) = 1 g/kg CertiPUR