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 automated pressure ramping profile generates the Dynamic Bubble Point pressure that is used to determine Pore Diameter of stainless steel and ceramic diffusers. It is informational only and not an official part of the standard; the full text of the standard itself must be astn to for its use and application. Maximum pore diameter is determined by immersing the filter in a suitable test liquid and applying air pressure until the first bubble of air passes through the filter.

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 ee128 ASTM website. Work Item s – proposed revisions of this standard.

Content only available by subscription. This is calculated by the software program. Calculate the permeability as follows: Cracks, Current edition approved May 10, Print 1 2 3 4 5 page sstarting from page current page. You currently cannot view this content. Furthermore, the traditional analog flow meter is replaced by a digital mass flow meter that directly interacts with the software.

Apparatus responsibility of the user of this standard to establish appro- 5.

Standard Filter Crucibles – ROBU® Glasfilter-Geräte GmbH

Register for a trial account. It is the 5. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.


For test sticks and candles a rubber stopper with a rubber tubing attached is suitable.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

The electronic file may not be reproduced in any way. Model FMD eliminates the need for the clumsy and difficult to use wet test meter. ASTM D recommends that the diffusers be tested when new and periodically thereafter, preferably after each use.

ASTM E128 – 99(2011)

A number in parentheses indicates the year of last reapproval. This abstract is a brief summary of the referenced standard. Clean dry compressed air shall be used. No other units of measurement are included in this standard.

However, the manometer is replaced by a high precision digital pressure controller. 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. Please login to your authorized staff account to use this feature. The Lawler proprietary Windows software manages the testing operation and all the data.

Please sign into an account with a subscription to this content, or email for help at support madcad. Specifications subject to change without notice. Originally published as E — 57 T. This test method covers the determination of maximum pore diameter and permeability of rigid porous asstm used in the laboratory for filtration or diffusion.

Foam Diffuser Certification Apparatus for ASTM D, D, E

The maximum pore diameter is calculated from the surface tension of the test liquid and the applied pressure. No items in cart. Values for surface tension in Table 1 are for general guidance only and are approximate; surface tension of the liquid used should be determined.


Remember me for one month. Last previous edition E — 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. 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.

Adjust the pressure differ- repeated use. Enter your personal account email address to request a password reset: Are you sure you want to empty the cart? Keywords p observed pressure of water, cm water Note 6.

BS EN ISO 8501-4:2006

In addition the electronic files e12 not be downloaded or distributed elsewhere over computer networks or otherwise. 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 There were no books found for the applied search filters.

It consists of a certified NIST traceable U-tube manometer capable of reading mm of water installed on a wall mountable stainless steel panel, a ml graduated cylinder, a precision regulating valve and a 1 meter length of 8 mm plastic tubing.

They are applicable to filters made of sintered glass, ceramic, metal, or plastic. Summary of Test Method 1.

Making these substitutions, the expres- d density, sion becomes: Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.