PChemLabTXT_page_657

PChemLabTXT | page 657 | https://thedailydialectics.com/pdfs/education/chemistry/p-chem/PChemLabTXT/PChemLabTXT.pdf

Rey. Confirming Pages ic 646 Chapter XX Miscellaneous Procedures gar28420_ch20_639-662.indd Sec2:646 Do not allow a cylinder to be emptied down to 1 atm; there should be some over- pressure left when the cylinder is returned. Unneeded cylinders should be returned to the supplier to avoid needless…