Primary Drinking Water Metals. Two solutions (A & B). Each solution 100 mL. Contains: (µg/mL) Solution A: Silver at 10, Barium, Cadmium, Selenium at 50, Arsenic, Chromium, Lead at 100 in 2% HNO3 + Trace HF. Solution B: Mercury at 20 in 5% HNO3. 12 months expiry date. Traceable to NIST SRM 31XX series. ISO 9001:2015 certified, ISO/IEC 17025:2017 and ISO 17034:20166 accredited.
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