Use rubber gloves, side cover Safety goggles, Face mask, Apron, Safety Shoes, etc.
Keep container tightly closed. Stored in a cool & well-ventilated are. Use exhaust ventilation/fume-hood while transferring the material.
In case of spillage, neutralize the spilled HCL or cover with dry sand & clean the area with plenty of water.
In case of any exposure to skin or eyes, wash the affected area immediately with plenty of water till irritation stops & remove the contaminated clothes.