- 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.