• Potable Water Standards
• Wastewater Standards
• Custom Standards
  
  

Traceable - We use NIST Standard Reference Materials (SRM and lot number specified on the certificate) for calibration and direct comparison.

Precise - We have detailed Error Budgets that define the errors used in determining the uncertainty, giving us a unique value for each lot of material.

Pure - We use ICP and ICP-MS to check the purity of all CRMs. Protocols are prepared for all new starting materials. We perform purifications and chemical modifications as required to meet predefined quality specifications.

Accurate - We use two independent validated assay methods that are performed with a reliable QC standard.

Stable & Compatible - We've conducted stability studies on all standards, including blends. Compatibility and stability have been demonstrated and fully documented.