15 Mid-Level Trace Metals on 37 mm Ø, 0.8 µm porosity MCE filters (10 spiked filters and 5 blanks) for QC of Method 7300. Contains: (µg/spiked filter) Arsenic, Zinc at 50, Barium, Beryllium, Cadmium, Chromium, Cobalt, Manganese, Nickel, Thallium, Vanadium at 10, Copper, Iron, Lead at 25, Silver at 5. 12 months expiry date. Traceable to NIST 31XX series. ISO 9001:2015 certified, ISO/IEC 17025:2017 and ISO 17034:20166 accredited.
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