What should you do if some m hcl drips down the outside of your graduated cylinder while you are filling the cylinder?

If some HCl drips down the outside of your graduated cylinder when you are filling the cylinder, use a neutralizer absorbent to clean up the spill. You can neutralize acid with soda ash or with sodium bicarbonate. Use pH paper to determine if the spill has been neutralized. The used absorbents should be placed in plastic bag and dispose appropriately.