anyone using it and know how to use pls help
As i don't understand the step 6
( Hold the syringe with the tip facing upward and read the position of the, now the upper end, of the black part of the piston, the syringe has graduations of 0.01ml. Read the calcium value from the table or the calculate as follow
ppm Ca = (1 - reading in step 6) x 500
u see this's what i read from the paper but i don't understand