Description
eCFR :: 40 CFR Part 136 — Guidelines Establishing Test
Analysts may omit EDTA or replace with another suitable complexing reagent provided that all method-specified quality control acceptance criteria are met. 31 For samples known or suspected to contain high levels of silver (e.g., in excess of 4 mg/L), cyanogen iodide should be used to keep the silver in solution for analysis.
PPIC Statewide Survey: Californians and Their Government
2022/10/26 · Key findings include: Proposition 30 o...