Solution A of ICP-EPA 200.7-1. 250 mL. Contains: (µg/mL) Chromium, Nickel, Zinc at 500, Aluminium, Calcium, Magnesium, Potassium, Sodium at 1,000 in 2% 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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