Exaxol 6 Component, Mixed Calibration Standard 5A in 5% HNO3, EPA 200.7

6-Component Mixed Calibration Standard 5A, EPA 200.7 by Exaxol, catalog numbers 74MX5A-100 and 74MX5A-500, is a 6-element mixed calibration standard in 5% nitric acid, formulated as calibration mix 5A for ICP-OES under EPA Method 200.7. Available in 100 mL and 500 mL from MBP, a registered vendor to many research institutes across the USA.