Sulfate/Sulphate Anion IC Standard from Sodium Sulfate at 100 µg/mL in H2O. 250 mL. 18 months expiry date. ISO 9001:2015 certified, ISO/IEC 17025:2017 and ISO 17034:20166 accredited. Can be used as a stock solution for EPA Methods 300.1, 9036, 375.4 and 375.2.
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