The level of gas in a full cylinder is approx three quarters of the height of the cylinder. This allows the gas to expand and contract during different weather conditions and temperatures. You cannot tell how much gas is in a cylinder by shaking or tapping it. This could also damage the container.To check the level of gas in a cylinder, carefully pour hot water down the side of it and then after a few moments, run your hand down the cylinder.he level of gas in a full cylinder is approx three quarters of the height of the cylinder. This allows the gas to expand and contract during different weather conditions and temperatures. You cannot tell how much gas is in a cylinder by shaking or tapping it. This could also damage the container.
3. Breast cancer: 206,983 lives. Breast cancer is the second most common cancer in women in the United States, after skin cancer, according to the Mayo Clinic. It can also occur in men â there were nearly 2,000 male cases between 2003 and 2008.
These cells tend to form a mass, or tumor, and the type of cancer is named for the area at which the mass originates. According to the CDC, the three most common cancers among women are breast cancer, colorectal cancer and lung cancer. The top killer of women among those is lung cancer.