I have some solder wire with a flux core that is rated as REL0 per IPC-TM-650 2.3.35. I am detecting chlorine (0.3-0.8wt%) and bromine (5wt%) through EDX. Should I be able to detect that much? I thought this was < 0.5wt%. I have checked and the bromine peak at 11.9 keV is present, so clearly this isn't just a case of mistaking it for aluminum. Does the IPC test miss organic chlorides?
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halides in solder flux
- Thread starter kevlar49
- Start date
btrueblood
Mechanical
It might, if the flux or residues of it are not soluble in isopropanol/water.
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