We are a batch chemical facility and purge and blanket with nitrogen. The nitrogen is generated with a nitorgen generator putting out a 99.5% purity with liquid nitrogen backup. Has anyone out there ventured to use a lower purity -say 98 % nitrogen.. We have a couple of proudcts that chemically will degrade so we will bring pure nitrogen to these tanks but we are looking at the safety aspects and it scares a lot of people to lower the purity.
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