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This specification covers the acceptable design details for the plenum chamber used in specified air performance measurement tests for vacuum cleaners. Plenum chambers conforming to this specification shall be fabricated in accordance with the dimensions, tolerances, and notes indicated for the following components: plenum chamber assembly; orifice plate; orifice plate holder and assembly; manometer connection; and acceptable machined edges for orifice plates.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers the acceptable details and tolerances for the plenum chamber used in specified air performance measurement tests for vacuum cleaners.
1.2 The plenum chamber is designed for vacuum measurements only. (Warning—The plenum chamber has been shown to accurately determine maximum air power values at various test points for vacuum cleaners. There is a possibility that the airflow values measured with orifices larger than 2 in. at high flow rates may be erroneous due to the proximity of the top and bottom surfaces to the orifice plate inlet.)
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ISO StandardISO 5167-2:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 2: Orifice plates
F558 Test Method for Measuring Air Performance Characteristics of Vacuum Cleaners
F820 Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems
F2105 Test Method for Measuring Air Performance Characteristics of Vacuum Cleaner Motor/Fan Systems
ICS Number Code 97.080 (Cleaning appliances)
UNSPSC Code 47121602(Vacuum cleaners)
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ASTM F431-21, Standard Specification for Air Performance Measurement Plenum Chamber for Vacuum Cleaners, ASTM International, West Conshohocken, PA, 2021, www.astm.orgBack to Top