Those 3M lead testing kits are designed to detect lead at concentrations on the order of, I don't know, what, like, a million times the limits set in food safet

Those 3M lead testing kits are designed to detect lead at concentrations on the order of, I don't know, what, like, a million times the limits set in food safety standards? https://www.epa.gov/sites/default/files/documents/3M-leadcheck-report.pdf https://www.epa.gov/sites/default/files/documents/3M-leadche...