MULTI ION IC STANDARD - 6 COMPONENTS (Lithium (Li+) 10 mg/L; Sodium (Na+) 20 mg/L; Ammonium (NH4+) 40 mg/L; Calcium (Ca2+) 40 mg/L; Magnesium (Mg2+) 20 mg/L; Potassium (K+) 20 mg/L in 0.1% Nitric Acid - traceable to NIST
Expiry: 6 months after opening