- The project to install the bulb to increase. Adequate lighting such as area Packing (picture 2.15) and symbolic boundaries. In areas with loading and unloading chemical raw materials (picture 2.16) and products (picture 2.17) by the cone while unloading chemicals and mark painting (yellow paint on the floor) and labeled force (picture 2.18. ) to the person handling chemicals (picture 2.19) in front of tanks with chemicals must wear personal protective equipment.