Nitrogen from Nitrite Anion IC Single-Component Standard from Sodium Nitrite at 100 µg/mL in H2O.
Can be used as stock solution for colorimetric methods EPA 353.2, SM-4500-NO2-B, and IC method 300.1.
ISO 9001:2015 certified, ISO/IEC 17025:2017 and ISO 17034:2016 accredited.
18 month expiration date.