Confined Space: When Air Testing Before Entry is Impractical
Author's Note: This is an updated version of a blog originally published in 2017. At a client's facility there was a confined space (a large vault) that they wanted to enter using alternate entry procedures given that the only hazard was the possibility of a hazardous atmosphere. (Issues such as these are routinely addressed in our Confined Space Train the Trainer classes.) Checking the Air Before Entry Over the years his crews had entered the vault many times and had never encountered a hazardous atmosphere, nor had work activities ever created one. They had the testing records to verify this....