Find the most up-to-date version of ASTM B at Engineering Purchase your copy of ASTM B – 70() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. ASTM B + REDLINE: STANDARD PRACTICE FOR RATING OF ELECTROPLATED PANELS SUBJECTED TO ATMOSPHERIC EXPOSURE – INCLUDES.

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Typical decorative deposits exposed to marine atmospheres often tend to fail by crater rusting, whereas in industrial atmospheres, they are more likely to exhibit pinpoint rusting; and the latter atmosphere also tends to be more severe with regard to degradation of the coating system but somewhat less severe with regard to basis metal corrosion. Enter your personal account email ashm to request a password sstm There were no books found for the applied search filters.

For example, it may be agreed that any panel with a protection rating of 5 is so unacceptable that an appearance rating has no meaning. Permanent or massive type of basis metal corrosion such as that in pinholes, bare, or? The electronic file may not be reproduced in any way. It has been used also for rating similar panels that have been subjected to accelerated tests such as those covered by Practice BMethod BTest Method Band Test Method B NOTE 6—If fractional rating was used for the protection number, this would result in a fractional appearance rating; in that case the fractional appearance rating may be retained, or rounded off to the nearest whole number, provided, however, that the appearance rating may aatm be higher than the protection rating.

Remember me for one month. Last previous edition approved in as B — 70 This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? The right to access the electronic files of ASTM Standards is for purposes of viewing for individual use only. Any modifications needed to adapt the method to rating actual production parts are not considered here. At the option of the inspector, this difficulty may be handled as follows: Difficulties may be encountered in attempting to rate severely corroded panels.


Similarly contact and rack marks, mounting holes, and so forth, should be disregarded. It is based on experience in use of the method with standard by cm 4- by 6-in. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. If dirt, salt deposits, and so forth, make it impractical to inspect them, panels may be sponged with a mild soap solution followed by water rinse; but no pressure should be exerted in this procedure such as would tend to upgrade the rating by, for example, cleaning off rust or rust stain.

It may be advisable to physically arrange all of the panels in order to merit. You currently cannot view this content. These photographs and charts4 are 10 by 15 cm 4 by 6 in.

ASTM B (Reapproved )e1_图文_百度文库

Are you sure you want to empty the cart? This practice covers the recommended method for rating the condition of electroplated test panels subjected to corrosive environments for test purposes.

If you like to setup a quick demo, let us know at support madcad. Accordingly, rating numbers shall be derived from the type of defect that exists, that is: It is not intended aastm use with anodic sacrificial coatings such as zinc and cadmium on steel.


Please login to your authorized staff account to use this feature. Search book title Enter keywords for book title search. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

For example, if a panel rates as low as 4 for protection, it may be difficult to assess any additional appearance defects. Content only available by subscription. ASTM grants you astn license as follows: A number in parentheses indicates the year of last reapproval. This method is used with standard-sized panels exposed on standard ASTM racks at outdoor test sites in both natural atmospheres and accelerated test conditions.

No further reproductions authorized.

ASTM B537 – 70(2013)

Such procedure shall be con? Rating 10, accordingly, is arbitrarily assigned to a panel with no defects, and the equation operates at ratings 9 and below. Guidelines are given below, but judgment factors inevitably enter into the decision. It is informational only and not an official g537 of the standard; the full text of the standard itself must be referred to for its use and application.

Panels should be allowed to dry before inspecting them. One point is assessed if the defects can be classi? Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk qstm infringement of such rights, are entirely their own responsibility.