Nitrite Nitrogen Standard, 1000ppm N (3285ppm NO2), Ricca
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Nitrite Nitrogen Standard, 1000ppm N (3285ppm NO2), Ricca
NITROGEN STANDARD, ( As Nitrite ), 1mL = 1.0mg N as NO2, 1000ppm N, (3285ppm NO2), Meets ASTM Specifications, (KNO2 in Water )
Subject to Air Oxidation, Re-standardize if Extreme Accuracy is Required, 6 Month Shelf Life.