ASTM WK14392, Test Method for Evaluating the Sustained Air Performance and Exhaust Emissions of Central Vacuum Cleaning Units, is being developed by Subcommittee F11.22 on Air Performance, part of Committee F11 on Vacuum Cleaners. Standard will test how vacuum performance will be affected after multiple vacuuming events over extended period of time. It will help identify areas in which manufacturers may be able to improve designs and provide sensible advertising claims based on industry ...This story is related to the following:Trade Associations