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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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. Cracks, Current edition approved May 10, 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.

Adjust the pressure differ- repeated use. Model FMD eliminates the need for the clumsy and difficult to use wet test meter.

ASTM E – pdf全文-调研报告-在线文档

They are applicable to filters made of sintered glass, ceramic, metal, or plastic. Register for a trial account. A number in parentheses indicates the year of last reapproval. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Are you sure you e28 to empty the cart? Clean dry compressed air shall be used.

ASTM E128 – 99(2011)

Values for surface tension in Table 1 are for general guidance only and are approximate; surface tension ast the liquid used should be determined.

This test method covers the determination of maximum pore diameter and permeability of rigid porous filters used in the laboratory for filtration or diffusion. No other units of measurement are included in this standard.

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No items in cart. 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. Making these substitutions, the expres- d density, sion becomes: The right to access the electronic files of ASTM Standards is for purposes of viewing for axtm use only. Home Products Contacts Search. ASTM grants you a license as follows: Print 1 2 3 4 5 page sstarting from page current page.

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.

ASTM D recommends that the diffusers be tested when new and periodically thereafter, preferably after each use. It is the 5.

Work Item s – proposed revisions of this standard. ASTM D requires the recertification of the diffuser after 10 foam tests. The maximum pore diameter is calculated from the surface tension of the test liquid and the applied pressure. There were no books found for the applied search 1e28.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you like to setup a quick demo, let us know at support madcad.

1e28 is determined by measuring the flow of air through the filter when subjected to a pressure differential. Please login to your authorized staff account to use this feature. It is the responsibility of the user of this standard astmm establish appropriate safety and health practices and determine the applicability of regulatory asttm prior to use.

Keywords p observed pressure of water, cm water Note 6. The electronic file may not be reproduced in any way. However, the manometer is replaced by a high precision digital pressure controller. 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 Search book title Enter keywords for book title search.

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E1288 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.

The automated pressure ramping profile generates the Dynamic Bubble Point pressure that is used to determine Pore Diameter of stainless steel and ceramic diffusers.

A superscript epsilon indicates an editorial change since the last revision or reapproval. Specifications are subject to change without notice.

Calculate the permeability as follows: No further reproductions authorized. 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 and application. The Lawler proprietary Windows software manages the aatm operation and all the data. Enter your account email address to request a password reset: Content only available by subscription. 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 adtm, millimetres of mercury.

Please sign into an account with a subscription to this content, or asm for help at support madcad. Originally published as E — 57 T. If the test is to be repeated, shape. For test sticks and candles a rubber stopper with a rubber tubing attached is suitable. Summary of Test Method 1.