Ammonium Standard Solution (2.5 ppm NH4)
Immediately before use, dilute with water R to 100 times its volume a solution containing ammonium chloride R equivalent to 0.741 g of NH4Cl in 1000.0 mL.
Immediately before use, dilute with water R to 100 times its volume a solution containing ammonium chloride R equivalent to 0.741 g of NH4Cl in 1000.0 mL.