Different grades of helium6 Feb 2024 14:35
HE1 grade is 4.7. see below detail for this grade.
Grade 4.5 & 4.6: Grade 4.5 is commonly known as the industrial grade. It is used in the industries more than any other application, especially in MRI applications as a push gas. Grade 4.6 is mainly used for leak detection, weather balloons, shielding gas, blimps, and other applications.
· Grade 4.7 & 4.8: The 4.7 grade helium is used for controlling the atmosphere during the manufacturing process like shielding gas for welding, leak detection, etc. Grade 4.8 helium gas is used for many industrial purposes and military purposes.