Primary Drkg Water Metals: Sol A in 2% HNO3, (µg/mL) Silver at 10, Barium, Cadmium, Selenium at 50, Arsenic, Chromium, Lead at 100 in 2% HNO3 + Trace HF. 12 months expiry date. Traceable to NIST SRM 31XX series. ISO 9001:2015 certified, ISO/IEC 17025:201
* VAT and and shipping costs not included. Errors and price changes excepted