There is no color, no smell, but the smell has been well received by critics such as additives, ethyl phathaen (Ethyl Mercaptan) cache to at a later time to alarm. If leakage will be scent danger LPG edit before protection.
Colorless, odorless, but the addition of flavoring agents such as ethyl alumni Capcom (Ethyl Mercaptan) or later. A warning sign If the leak does not smell LPG prevention before harm.
A colorless, no smell, but have to fill the odor compounds such as ethyl mercury captan (Ethyl Mercaptan) into the later to the alarm. If the leak will smell LPG prevent editing before danger.