Honeywell |
Combined Six Cation Standard I for IC Certified Reference Material, 1000 mg/L Ca2+, 400 mg/L NH4+Combined Six Cation Standard I for IC Certified Reference Material, 1000 mg/L Ca2+, 400 mg/L NH4+, 200 mg/L each of Na+, K+, Mg2+, 50 mg/L Li+ Material in H2O
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