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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Search book title Enter keywords for book title search. Cracks, Current edition w128 May 10, The electronic file may not be 1e28 in any way. Are you sure you want to empty the cart? Historical Version s – view previous versions of standard. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service e-mail ; or through the ASTM website. Specifications subject to change without notice.

Standard Filter Crucibles – ROBU® Glasfilter-Geräte GmbH

Content only available by subscription. Calculate the permeability as follows: Please login to your authorized staff account to use this feature. ASTM D requires the recertification of the diffuser after 10 foam tests. Model FMD eliminates the need for the clumsy and difficult to use wet test meter. Register for a trial account. Specifications are subject to change without notice. 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.

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BS EN ISO 8501-4:2006

Print 1 2 3 4 5 page sstarting from page current page. Enter your personal account email address to request a password reset: There were no books found for the applied search filters. Both results are automatically displayed on the computer screen. For test sticks and candles a rubber stopper with a rubber tubing attached is suitable. 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 1e28 application.

Maximum pore diameter is determined satm immersing the filter in a suitable test liquid and applying air pressure until the first bubble of air passes through the filter. Apparatus responsibility of the user of this standard to establish appro- 5. Other liquids e1228 meet this criterion may be used. However, the manometer is replaced by a high precision digital pressure controller.

The maximum pore diameter is calculated from the surface tension of the test liquid and the applied pressure.

ASTM D recommends that the diffusers be tested when new and periodically thereafter, preferably after each use. This test method establishes a uniform designation for maximum pore diameter and also provides a means of detecting and measuring changes which occur through continued use.

Furthermore, the traditional analog flow meter is replaced by a sstm mass flow meter that directly interacts with the software. This pore diameter is calculated from the surface tension of the test test method establishes a uniform designation for maximum liquid and the applied pressure. The Lawler proprietary Windows software manages the testing operation and all the data. The surface tension of the liquid creates centimetres. Home Products Contacts Search.

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They are applicable to filters made of sintered glass, ceramic, metal, or plastic. 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. Work Item s – proposed revisions of this standard.

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Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

This test method covers the determination of maximum pore diameter and permeability of rigid porous filters used in the laboratory e28 filtration or diffusion. Enter your account email address to request a password reset: It is the 5. Keywords p observed pressure of water, cm water Note 6.

Standard Filter Crucibles

A superscript epsilon indicates an editorial change since the last revision or reapproval. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Link to Active This link will always route to the current Active version of the standard. Originally published as E — 57 T.