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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R is rounded off to the nearest whole number, leading to the tabulation given in Table 1. One point is assessed if the defects can be classi? No items in cart. 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, asgm, that the appearance rating may not be higher than the protection rating.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.
ASTM B537 – 70(2013)
Types of Defects 4. ASTM grants you a license as follows: If you like to setup a quick demo, let us know at support madcad. It is not intended for use with anodic sacri?
Historical Version s – view previous versions of standard. Individual b57 single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
This abstract is a brief summary of the referenced standard. At the option of the inspector, this difficulty may be handled as follows: Therefore, the appearance rating cannot be assigned with the same degree of precision as can the protection rating.
It has been used also for rating similar panels that have been subjected to accelerated tests such as those covered by Practice B, Method B, Test Method B, and Test Method B In addition the electronic files may not be downloaded or distributed elsewhere over computer networks or otherwise. Please sign into an account with a subscription to this content, or email for help at support madcad.
This practice covers the recommended method for rating the condition of electroplated test panels subjected to corrosive environments for test purposes. Enter your account email address to request a password reset: Last previous edition approved in as B — 70 These photographs and charts4 are 10 by 15 cm 4 by 6 in. It may be advisable to physically arrange all of the panels in order to merit.
A panel worse than the standard for rating 1 would rate 0. Assignment of Protection Rating 6. The standards represent as nearly as possible the maximum amount of corrosion b5337 for a given rating; there is a standard for each rating 1 through 9. Accordingly, this practice assigns separate ratings to 1 appearance as affected by corrosion of the substrate and 2 appearance as affected by deterioration of the coating itself.
It is based on astk in use of the method with standard by cm 4- by 6-in. Original adjunct produced in Search book title Enter keywords for book title search.
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.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. 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. Such panels may arbitrarily be assigned one of two appearance ratings: Lighting during inspection should be as awtm uniform as possible; direct re?
Any modifications needed to adapt asm method to rating actual production parts are not considered in this practice. For example, if a panel rates as low as 4 for protection, it may be difficult to assess any additional appearance defects.
ASTM B (Reapproved )e1_图文_百度文库
Assignment of Appearance Rating 7. Corrosion pits probably not extending through to the basis metal—that is absence of obvious basis metal corrosion products bleeding therefrom. One method of facilitating this comparison is to remove individual panels from their racks and place them beside other panels. Guidelines are given below, but judgment factors asgm enter into the decision. Basis of Procedure 3.
There were no books found for the applied search filters. Inspection should be made in the as-is condition, and defects to be taken into account are only those that can be seen with the unaided eye at normal reading distance.