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IPC-TM-650 Ionic Conductivity / Ion Chromatography Task ...

1 PurposeThese tests are used as process controltools; they can be used to inspect printed boards or printedboard assemblies and determine if they conform to the moni-toring level of the user s performance specification. Bulk ioniccleanliness testing may be accomplished by measuring theionizable surface contaminants extracted by the followingthree methods:1. Manual extraction method2. Dynamic extraction method3. Static extraction methodNote:Please note that this method does not predict reliabil-ity and should only be used as a process control RestrictionsMeasurements of Ionic conductivities donot differentiate between different Ionic species.

water solution must be used in this calibration. Water cannot be used since it is not the test solution used in the procedure. The test solution used in this calibration should be made fresh daily. 4.3.3 From a 50 mL burette, add to the liter of test solution, 5 mL of the standard 0.06 g/liter NaCl solution. Stir and mea-sure resistivity ...

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