Nitrate Anion IC Standard from Sodium Nitrate at 1,000 µg/mL in H2O. 50 mL. 18 months expiry date. Traceable to NIST 3185. ISO 9001:2015 certified, ISO/IEC 17025:2017 and ISO 17034:20166 accredited. Can be used as stock solution for nitrate as nitrate, EPA Method 9056. For reporting Nitrogen using a nitrate source, please see IC-NO3-M instead.
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