Compendium Method IO-3.4 by the United States Environmental Protection Agency
= Compendium Method IO-3.4 by the United States Environmental Protection Agency
{title2=1999}
https://www.epa.gov/sites/default/files/2015-07/documents/epa-io-3.4.pdf
Determination of Metals in Ambient Particulate Matter Using Inductively Coupled Plasma (ICP) Spectroscopy. Section 3.1 and Figure 1 describe the source and torch.