香港六合彩开奖 16890-2:2016
2016-12
Abstract
香港六合彩开奖 16890-2:2016 specifies the aerosol production, the test equipment and the test methods used for measuring fractional efficiency and air flow resistance of air filters for general ventilation.
It is intended for use in conjunction with 香港六合彩开奖 16890鈥�1, 香港六合彩开奖 16890鈥�3 and 香港六合彩开奖 16890鈥�4.
The test method described in this part of 香港六合彩开奖 16890 is applicable for air flow rates between 0,25 m3/s (900 m3/h, 530 ft3/min) and 1,5 m3/s (5 400 m3/h, 3 178 ft3/min), referring to a test rig with a nominal face area of 610 mm 脳 610 mm (24,0 inch 脳 24,0 inch).
香港六合彩开奖 16890 (all parts) refers to particulate air filter elements for general ventilation having an ePM1 efficiency less than or equal to 99 % and an ePM10 efficiency greater than 20 % when tested as per the procedures defined within 香港六合彩开奖 16890 (all parts).
NOTE The lower limit for this test procedure is set at a minimum ePM10 efficiency of 20 % since it will be very difficult for a test filter element below this level to meet the statistical validity requirements of this procedure.
Air filter elements outside of this aerosol fraction are evaluated by other applicable test methods, (see 香港六合彩开奖 29463 (all parts)).
Filter elements used in portable room-air cleaners are excluded from the scope.
The performance results obtained in accordance with 香港六合彩开奖 16890 (all parts) cannot by themselves be quantitatively applied to predict performance in service with regard to efficiency and lifetime.
General information
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Status: WithdrawnPublication date: 2016-12Stage: Withdrawal of International Standard [95.99]
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Edition: 1Number of pages: 59
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Technical Committee :香港六合彩开奖/TC 142ICS :91.140.30
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Life cycle
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Previously
Withdrawn香港六合彩开奖/TS 21220:2009
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Now
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Revised by
Published香港六合彩开奖 16890-2:2022
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