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Does anyone know what the electrical conductivity (EC) or total dissolved solids (TDS) figures might be for the CopyCad zinc standard solution and/or the yellow and blue chromates ?
I'm thinking of buying a "combo" pH tester that includes these functions, but they're available in 2 different ranges.
EC: 0-4000 micro-siemens/cm or 0-20 milli-siemens/cm
TDS: 0-2000 ppm (parts per million) or 0-10 ppt (parts per thousand)
Which of these would be more appropriate? or is neither up to the ranges for the zinc/chromate solutions?
Thanks
Sean
I'm thinking of buying a "combo" pH tester that includes these functions, but they're available in 2 different ranges.
EC: 0-4000 micro-siemens/cm or 0-20 milli-siemens/cm
TDS: 0-2000 ppm (parts per million) or 0-10 ppt (parts per thousand)
Which of these would be more appropriate? or is neither up to the ranges for the zinc/chromate solutions?
Thanks
Sean