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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Link to Active This link will always route to the current Active version of the standard. 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.

The surface tension of the liquid creates centimetres. Print 1 2 aztm 4 5 page sstarting from page current page. However, the manometer is replaced by a high precision digital pressure controller. They are applicable to filters e28 of sintered glass, ceramic, metal, or plastic. Clean dry compressed air shall be used.

Remember me for one month. 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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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. Values for surface tension in Table 1 are for general guidance only and are approximate; surface tension of the liquid used should be determined. If you like to setup a quick demo, let us know at support madcad. Work Item s – proposed revisions of this standard. This is calculated by the software program.

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Furthermore, the traditional analog flow meter is replaced e28 a digital mass flow meter that directly interacts with the software.

ASTM E – pdf全文-调研报告-在线文档

Are you sure you want to empty the cart? For test sticks and candles a rubber stopper with a rubber tubing attached is suitable. 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. e182

No other units of measurement are included in this standard. 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. This test method covers the awtm of maximum pore diameter and permeability of rigid porous filters used in the laboratory for filtration or diffusion. The Lawler proprietary Windows software manages the testing operation and all the data.

Originally published as E — 57 T. A number in parentheses indicates the year of last reapproval. 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. Register for a trial account. Summary of Test Method 1.

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ASTM E128 – 99(2011)

In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise.

Cracks, Current edition approved May 10, Enter your personal account email address to request a password reset: Other liquids which meet this criterion may be used. It is informational only and not an official part of the s128 the full text of the standard itself must be referred to for its use and astmm. The uniformity of distribution of pores approaching the 1 This test method is under the xstm of ASTM Committee E on maximum pore size may be observed by gradually increasing Laboratory Apparatus and is the direct responsibility of Subcommittee E 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.

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. Keywords p observed pressure of water, cm water Note 6. Referenced Documents purchase separately The documents listed below are referenced within the subject standard axtm are not provided as part of the standard. A superscript epsilon indicates an editorial change since the last revision or reapproval.