,,Perkin Elmer Pure 8 - 24 components: 100mg/l each of Al B Ba Bi Be Ca Cd Co Cr Cu Fe Ga K Li Mg Mn Na Ni Pb Se Sr Te Tl Zn in HNO3 5% ,,CRM, ISO 17034 and ISO 17025,, ,,Conservation 36 months. (12 month 1 * 100 mL