FIELD FLACON HCl 10%
HCl = hydrochloric acid to estimate carbonate content in soil.
Use one drop per layer or sample to see and hear the effervescence.
See for naming and coding the Excel file below.
The flacon contains a dilute solution (10%).
See for safety the PDF file (about 30%HCl).
CAUTION: hydrochloric acid is a biting fluid! 
