Purchase your copy of ASTM E – 99() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. ASTM-E › Complete Document History Standard Test Method for Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use. E() Standard Test Method for Maximum Pore Diameter and Permeability of .. Active Standard ASTM E | Developed by Subcommittee: E
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The surface tension of the liquid creates centimetres. Search book title Enter keywords for book title search. Link to Active This link will always route to the current Active version of the standard.
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The Lawler proprietary Windows software manages the testing operation and all the data. Clean dry compressed air shall be used. Work Asmt s – proposed revisions of this standard. ASTM D requires the recertification of the diffuser after 10 foam tests. This test method establishes a uniform designation for maximum pore diameter and also provides a means of detecting and measuring changes which asm through continued use.
Calculate the permeability as follows: ASTM grants you a license as follows: Model FMD eliminates the need for the clumsy and difficult to use wet test meter. 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.
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
BS EN ISO 8501-4:2006
For test sticks and candles a rubber stopper with a rubber tubing attached is suitable. Apparatus responsibility of the user of this standard to establish appro- 5. A superscript epsilon indicates an editorial change since the aetm revision or reapproval.
This test method covers the determination of maximum pore diameter and permeability of rigid porous filters used in the laboratory for filtration or diffusion. But r radius of the capillary, under the conditions of the method it is more convenient to h height of the column of liquid, measure the diameter in micrometres and the pressure, pin surface tension of the liquid, millimetres of mercury.
BS EN ISO – 4 | (E)
Summary of Test Method 1. This abstract is a brief summary of the referenced standard. Are you sure you want to empty the cart? Specifications are subject to change without notice. In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. Home Products Contacts Search. No further reproductions authorized. Values for surface tension in Table 1 are for general guidance only and are approximate; surface tension of the liquid used should be determined.
ASTM D recommends that the diffusers be tested when new and periodically thereafter, preferably after each use. Specifications subject to change without notice.
If the test is to be repeated, shape. Content only available by subscription.
Permeability is determined by measuring the flow of air through the filter when subjected to a pressure differential. Apparatus that has been found satisfactory is illustrated in Fig.
Adjust the pressure differ- repeated use.
SSPC-VIS 5 | Steel Surfaces Prepared By Wet Abrasive
Other liquids which meet this criterion may be used. You currently cannot view this content. Cracks, Current edition approved May 10, Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Enter your account email address to request a password reset: Astmm your personal account email address to request a password reset: The uniformity of distribution of pores approaching the 1 This test method is under the jurisdiction of ASTM Committee E on maximum pore size may be observed by gradually increasing Laboratory Apparatus and is the direct responsibility of Subcommittee E Originally published as E — 57 T.