Single-element standards for AA & ICP.

• Made with acid and ASTM Type I Water
• Inorganic compounds and metals at 99.99% to 99.9999% purity (where commercially available)
• Directly traceable to NIST (where applicable)

AA & ICP Assurance® Grade CRMs are designed for AA and ICP and are available in single and multi-element formulations. 70 elements are available as single-element standards and are available at 1,000 µg/ml and/or 10,000 µg/ml. They are available packaged in 30 ml, 125 ml, 250 ml, and 500 ml bottles to minimize contamination.