250 ml -Laboratory Performance Check Standard - 28017

100 mg/l [P] Phosphorus, 5 mg/l [Ag] Silver, 20 mg/l [Sb] Antimony, 20 mg/l [As] Arsenic, 20 mg/l [Ba] Barium, 20 mg/l [Be] Beryllium, 20 mg/l [Cd] Cadmium, 20 mg/l [Cr] Chromium, 20 mg/l [Co] Cobalt, 20 mg/l [Cu] Copper, 20 mg/l [Pb] Lead, 20 mg/l [Mn] Manganese, 20 mg/l [Ni] Nickel, 20 mg/l [Se] Selenium, 20 mg/l [Zn] Zinc, 20 mg/l [V] Vanadium, 20 mg/l [Tl] Thallium, 20 mg/l [Fe] Iron

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Background

All analysis and tests during certification works are carried out at ISO 17025 accredited laboratories. Manufacture of the standards is implemented according to ISO 17034 conditions. Manufacture of standards meets conditions to ensure NIST traceability.