Be confident in your purchase we're an Authorized ATI Dealer. How cool is that?!?!? NOTE: PREPAID LABEL FOR USA CUSTOMERS ONLY. More than just ICP: High-end Spectro Arcos ICP-OES machine testing + an Ion chromatography machine for nitrate and fluorine + a titrator for alkalinity. Salinity is also double-checked using a high-precision conductivity meter. Comprehensive testing: Tank water checked for 40+ parameters, including major and minor elements and pollutants. Also tests RO water to ensure that systems are set up to succeed and any possible issues are identified early on. PhD-reviewed results: PhD scientists review each test that is sent to the lab and provide personalized, detailed prescriptions for any necessary chemistry adjustments. Photos can be uploaded, livestock and equipment documented providing a clear picture of your systems demands for even more accurate advice. Free shipping fast turnaround: Using the included shipping label, get results in 1-2 weeks from our lab in Germany. Just don?t forget to register your serial number before shipping your test!