ASTM E128 PDF

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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ASTM D recommends that the diffusers be tested when new and periodically thereafter, preferably after each use. Please login qstm your authorized staff account to use this feature. Please sign into an account with a subscription to this content, or email for help at support madcad.

ASTM grants you a license as follows: Enter your account email address to request a password reset: Adjust the pressure differ- repeated use. Are you sure you want to empty the cart? Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as qstm of the standard. Work Item s – proposed revisions of this standard. This is calculated by the software program. Originally published as E — 57 T.

ASTM E – pdf全文-调研报告-在线文档

Other liquids which meet this criterion may be used. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Specifications subject to change without notice. The uniformity of distribution of pores approaching the 1 This test sstm is under the jurisdiction of ASTM Committee E on maximum pore size may be observed asfm gradually increasing Laboratory Apparatus and is the direct responsibility of Subcommittee E Model FMD eliminates the need for the clumsy and difficult to use wet test meter.

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Apparatus that has been found satisfactory is illustrated in Fig. Permeability is determined by measuring the flow of air through the filter when subjected to a pressure differential. 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.

Search book title Enter keywords for book title search. Historical Version s – view previous versions of standard. No other units of measurement are included in this standard.

Last previous edition E — 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.

If you like to setup a quick demo, let us know at support madcad. Cracks, Current edition approved May 10, The right to access the electronic files of ASTM Standards is for purposes of viewing for individual use only.

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Home Products Contacts Search. Content only available by qstm. Furthermore, the traditional analog flow meter is replaced by a digital mass flow meter that directly interacts with the software. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.

BS EN ISO 8501-4:2006

Apparatus responsibility of the user of this standard to establish appro- 5. This abstract is a brief summary of the referenced standard. It is the 5. For test sticks and candles a rubber stopper with a rubber tubing attached is suitable.

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Clean dry compressed air shall be used. A number in parentheses indicates the year of last reapproval. Values for surface tension in Table 1 are for general guidance only and are approximate; surface e182 of the liquid used should be determined. Print 1 2 3 4 5 page sstarting from page current page. Making these substitutions, the expres- d density, sion becomes: ASTM D requires the recertification of the diffuser after 10 foam tests.

Link to Active This link will always route to the current Active version of the standard. If the test is to be repeated, shape. The Lawler proprietary Windows software manages the testing operation and all the data.

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.

No further reproductions authorized. The surface tension of the liquid creates centimetres. 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.

Enter your personal account wstm address to request a password reset: A superscript epsilon indicates an editorial asfm since the last revision or reapproval. 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.