PChemLabTXT_page_669

PChemLabTXT | page 669 | https://thedailydialectics.com/pdfs/education/chemistry/p-chem/PChemLabTXT/PChemLabTXT.pdf

Confirming Pages ic 658 Chapter XX Miscellaneous Procedures gar28420_ch20_639-662.indd Sec4:658 Most of the materials that we have discussed—glass, stainless steel, aluminum, brass, plastics—require no protective coating. Parts made of mild steel, welded angle iron, or plywood should be given a…