different grades of nitrogen
Nitrogen Grade Standards. Nitrogen is used across many industries for different purposes. Although certain names of grades are very common, the actual grades of nitrogen are not standardized across industries or even within industries. Ultimately, the manufacturer of the nitrogen chooses the name of the grade to categorize the nitrogen. For this reason, it is possible to have two nitrogen products with the same purity specifications, but listed in grades with different names. It is also possible for two nitrogen products within the same grade to have different purity specifications. It is important to select a nitrogen product based on its purity specifications and not solely its grade.