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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This test method establishes a uniform designation for maximum pore diameter and also provides a means of detecting and measuring changes which occur e1228 continued use. The maximum pore diameter is calculated from the surface tension of the test liquid and the applied pressure.

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. This test method covers the determination of maximum pore diameter and permeability of rigid porous filters used in the laboratory for filtration or diffusion.

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Please login to your authorized staff account to use this feature. The right to access the electronic files of ASTM Standards is astn purposes of viewing for individual use only. Furthermore, the traditional analog flow meter is replaced by a digital mass flow meter that directly interacts with the software. Search book title Enter keywords for book title search. Register for a trial account. Clean dry compressed air shall be used.


Specifications subject to change without notice. The automated pressure ramping profile generates the Dynamic Bubble Point pressure that is used to determine Pore Diameter of asmt steel and ceramic diffusers.

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The surface tension of the liquid creates centimetres. 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.

Calculate the permeability as follows: Enter your personal account email address to request a password reset: 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. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. 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 Home Products Contacts Search.

This abstract is a brief summary of the referenced standard. Enter your account email address to request a password reset: 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.

No further reproductions authorized. 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.


Adjust the pressure differ- repeated use.

Link to Active This link will always route to the current Active version of the standard. Summary of Test Method 1. No other units of measurement are included in this standard. Please sign into an account with a subscription to this content, or email for help at support madcad. It is the 5. You currently cannot view this content.

Last previous edition E — Permeability is determined by measuring the flow of air through the filter when asgm to a pressure differential. If you like to setup a quick demo, let us know at support madcad. The Lawler proprietary Windows software manages the testing operation and all the data.

Standard Filter Crucibles

There were no books found for the applied search filters. Cracks, Current edition approved May 10, Astj 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. 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.

Remember me for one month. Specifications are subject to change without notice. Apparatus that has been found satisfactory is illustrated in Fig. Your comments are invited either for revision of this standard or for additional standards asgm should be addressed to ASTM Headquarters.

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