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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Any modifications needed to adapt the method to rating actual production parts are not considered in this practice. Content only available by subscription.

Users of this standard are expressly advised that determination of the validity of any such astj rights, and the risk of infringement of such rights, are entirely their own responsibility. Permanent or massive type of basis metal corrosion such as that in pinholes, bare, or?

Enter your account email address to request a password reset: 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. Guidelines are given below, but judgment factors inevitably enter into the decision.

If there are surface defects not accounted for in astk protection rating, the appearance rating will be one or more units lower than the protection rating. Assignment of Protection Rating 6. 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 not be higher than the protection rating.

For this reason, the same standard comparison photographs or charts are not suitable for use at both types of locations; photographs are more helpful in asrm panels exposed to marine atmospheres, whereas dot charts can be used for industrial locations Appendix X2.

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In that case, an inspection should be made and recorded before the panels are exposed. A number in parentheses indicates the year of last reapproval. No further reproductions authorized. It may be advisable to physically arrange all of the panels in order to merit. This abstract is a brief summary of the referenced standard.

ASTM B (Reapproved )e1_图文_百度文库

Remember me for one month. Enter your personal account email address to request a password reset: 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. This practice covers the recommended method for rating the condition of electroplated test panels subjected to corrosive environments for test purposes.

It is not intended for use with anodic sacri? It has been used asstm for rating similar panels that have been subjected to accelerated tests such as those covered by Practice BMethod BTest Method Band Test Method B A panel worse than the standard for rating 1 would rate 0.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. ASTM grants you a license as follows: The electronic file may not be reproduced in any way. One method of facilitating this comparison is to remove individual panels from their racks and place them beside other panels.

Historical Version s – view previous versions of standard. asgm

Any modifications needed to adapt the method to rating actual production parts are not considered here. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. You currently cannot view this content.

If you like to sstm a quick demo, let us know at support madcad. At the option of the inspector, this difficulty may be handled as follows: Panels should be allowed to dry before inspecting them.

Types of Defects 4. Original adjunct produced in b357 Panels shall be assigned separate rating numbers based on the ability of the coating to protect the substrate from corrosion protection ratingand the overall appearance of panels as affected by deterioration of the coating itself appearance rating.

ASTM B537 – 70(2013)

Although these functions overlap, they can be evaluated separately and it is frequently desirable to do so. The right to access the electronic files of ASTM Standards is for purposes of viewing for individual use only. Print 1 2 3 4 5 page sstarting from page current page.

Typical decorative deposits exposed to marine atmospheres often tend to fail by crater rusting, whereas in industrial atmospheres, they are more likely to axtm 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.

Originally approved in It is not intended for use with anodic sacrificial coatings such as zinc and cadmium on steel. One point is assessed if the defects can be classi?