Documents Similar To ASTM Gpdf. ASTM Gpdf. Uploaded by. Diego Mauricio Rozo · QCF Holiday Test. Uploaded by. minhnn. ASTM G (Reapproved )e1 – Designation: G 62 – 87 (Reapproved )e1 Standard Test Metho. Purchase your copy of ASTM G62 – 14 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available.
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The values given in parentheses are for information only. Procedure for Method B This book also exists xstm the following packages This may be considered to be a nondestructive test because of the relatively low voltage.
This method can be used to verify minimum coating thicknesses as well as voids in quality-control applications. It should be noted, however, that this method will not detect thin spots in the coating.
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Take care to keep the electrode at least The values given in parentheses are for information only. When a holiday is picked up by the audible alarm, the electrode can be turned on end and the aatm spot of failure can be noted by searching with the tip of the electrode.
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. FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. This method is considered destructive because the high voltages involved generally destroy the coating at thin spots.
This may be considered to be a nondestructive test because of the aatm low voltage. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM G62 – 14 Standard Test Methods for Holiday Detection in Pipeline Coatings
Most units can be reset to any predetermined sensitivity value in this manner. Enter aetm personal account email address to request a password reset: Land Use and Development. Historical Version s – view previous versions of standard Translated Version s: Copyright Compu-tecture, Inc. A superscript epsilon e indicates an editorial change since the last revision or reapproval. The detector will ring if it passes any void, pinhole, or area of the coating thinner than the minimum allowable thickness.
Print 1 2 3 4 5 page sstarting from page current page. When a holiday is detected by the audible alarm, the electrode can be repositioned to determine the exact holiday area by observing the origin of the spark jump. Register for a trial account.
ASTM G62 – 14
If the surface is in an environment where electrolytes might form on the surface, such as salt spray, wash the coated surface with fresh water and allow to dry before testing. Originally published as G 62 — Plug the searching electrode into the holiday detector. Link to Active This link will always route to the current Active version of the standard.
This is used more commonly with Method B where voltage may vary from test to test but can also be used for veri? Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Current edition approved Sept. It is effective on films up to 0.
Nails, Spikes, and Staples. This method will determine the existence of any gross faults in thin-film pipeline coatings. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Specimens that were not adjacent in the as-produced condition, or were taken from different lengths of pipe, may represent differing process conditions. Then tighten the clamps with the screw until they are well down into the sponge electrode. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
This electrical contact will activate an alarm alerting the operator of the incidence of a holiday. Reagents and Materials 7. Increase the holiday detector voltage over a known coating thickness and measure the voltage at the point where the detector will just begin to ring.
NOTE 2—The dielectric breakdown voltage per millimetre mil can be determined for each coating experimentally as follows: F Standard Specification for Driven Fasteners: For polymeric precoated corrugated steel pipe, the reporting requirements of Speci? This method will not, however,? Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.