{"id":10144,"date":"2024-10-16T20:12:13","date_gmt":"2024-10-16T20:12:13","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-f431\/"},"modified":"2024-10-24T11:19:00","modified_gmt":"2024-10-24T11:19:00","slug":"astm-f431","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-f431\/","title":{"rendered":"ASTM-F431"},"content":{"rendered":"<\/p>\n
1.1 This specification covers the acceptable details and tolerances for the plenum chamber used in specified air performance measurement tests for vacuum cleaners.<\/p>\n
1.2 The plenum chamber is designed for vacuum measurements only. ( Warning<\/b> 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.)<\/p>\n
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.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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1<\/td>\n | Scope Referenced Documents Details Orifice Plates Keywords <\/td>\n<\/tr>\n | ||||||
2<\/td>\n | FIG. 1 FIG. 1 <\/td>\n<\/tr>\n | ||||||
3<\/td>\n | FIG. 1 FIG. 1 <\/td>\n<\/tr>\n | ||||||
4<\/td>\n | FIG. 1 <\/td>\n<\/tr>\n | ||||||
5<\/td>\n | FIG. 1 <\/td>\n<\/tr>\n | ||||||
6<\/td>\n | FIG. 2 FIG. 2 <\/td>\n<\/tr>\n | ||||||
7<\/td>\n | FIG. 3 FIG. 3 <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | FIG. 3 FIG. 3 <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | FIG. 3 <\/td>\n<\/tr>\n | ||||||
10<\/td>\n | X1. SUGGESTED PROCEDURE FOR LEAK TESTING OF THE PLENUM CHAMBER X1.1 Scope X1.2 Procedure FIG. 3 <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | FIG. X1.1 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" F431-04(2008) Standard Specification for Air Performance Measurement Plenum Chamber for Vacuum Cleaners<\/b><\/p>\n |