snipped-for-privacy@gmail.com wrote in news:c5cb452f-feff-4976-9365-572949c80ff4 @e53g2000hsa.googlegroups.com:
Put a few drops on a clean [horizontal] piece of window glass or mirror and let it dry.
See if there is any residue left.
bz 73 de N5BZ k
please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.
bz+ser@ch100-5.chem.lsu.edu remove ch100-5 to avoid spam trap