PTFE digestion tube is mainly used for digestion of samples before chemical analysis of soil, blood samples, urine samples, nails, food, dairy products, agricultural and sideline products, feeds, heavy metals, ores, etc. in food, disease control, agricultural science academies, medicine, agriculture, forestry, environmental protection, chemical industry, biochemistry and other industries, as well as in colleges and universities and scientific research departments. characteristic: 1. The appearance is pure white, and the inner wall is smooth without water; 2. High temperature resistance: operating temperature - 200+250 3. Low temperature resistance: 5% at - 196 4. The outer diameter of PTFE digestion tube is 30mm and the total height is 105mm, which is consistent with the size of PP digestion tube 50mL; 5. It has extraordinary chemical resistance and can withstand almost all chemical solvents (strong acid, strong alkali, aqua regia and various organic solvents).