ASTM D870 PDF

Find the most up-to-date version of ASTM D at Engineering Dpdf – Download as PDF File .pdf), Text File .txt) or read online. ASTM Standards: the coating and upon the temperature of the water. Any effects. failure in hours shall be recorded. ASTM D describes this test method for accelerated testing of coating adhesive bonds. Interior Adhesion. A 6″ conduit test.

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Rate specimens for changes in color, blistering, etc. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at dd870faxor service astm.

ASTM D Standard Practice for Testing Water Resistance of Coatings Using Water Immersion_百度文库

We have been instructed by our customer to start testing parts 2K paint over plastic for automotive for water immersion resistance. The cover should not touch any of the test specimens nor interfere with the air circulation around the specimens.

It is also possible to use very large tanks for testing coated pipe or other large coated products. Our weathering, lightfastness, and corrosion experts around the world are here to help. Failure in a water immersion test may satm caused by a number of factors including a de? Note atm practices for testing the water resistance of coatings include Practices DDand D It does not asm specimen astm d, specific test conditions, or evaluation of results.

In all cases only the current version of the standard as published by ASTM is to be considered the official document.

It is also possible to use very large tanks for testing coated pipe or other large coated products. Maintain the temperature adtm the test. The test is therefore useful for evaluating coatings alone or complete coating systems. NOTE 2—The circulating system is for the purpose of exposing all the water in the tank to room air so the water does not become strati? Knowledge on how a coating resists water immersion is helpful in predicting its service life.

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Please correct the ashm before continuing: You can now freely access all or documents.

Knowledge on how a coating resists water immersion is helpful in predicting its service life. The post-recovery rating allows evaluation of the permanent effects of the exposure as distinct from the transient effects, and is especially important for evaluation of color and gloss. A recovery period from 12 to 24 h is generally sufficient.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Remember d for one month. Evaluate specimens no less than 5 min and no more than 10 min after removal from test, as the effects from water exposure can change within a short time.

ASTM D870 PDF

Failure in a water immersion test may be caused by a number of d807 including a deficiency in the coating itself, contamination of the substrate, or inadequate surface preparation. Astm d tests of a scribed coating on a ferrous substrate are impractical in water immersion tests as the corrosion products tend to contaminate the water bath. Because it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate.

Although the apparatus and procedure could be employed in immersion tests using solutions of various materials in water, this practice is limited to tests in water alone.

Find the most up-to-date version of ASTM D at Engineering We have been instructed by our customer to start testing parts 2K paint over plastic for automotive for water immersion resistance. Remove only as many specimens as can be rated within the speci? Register for a trial account.

ASTM D870 – 15

The test is therefore useful for evaluating coatings alone or complete coating systems. Continuous overflow of the test tank is sometimes required asrm maintain consistent water quality.

Astm d tests typically result in a pass or fail determination, but the degree of failure may also be measured.

Login Already have a user account? Continuous overflow of the test tank is sometimes required astm d maintain consistent water quality. It does not specify specimen preparation, specific test conditions, or evaluation of results.

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Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as aastm of the standard.

A coating system is considered to pass if there is no evidence of water-related failure after a specified period of wstm. The values given in parentheses are for information only. Continuous overflow of the test tank is sometimes required to maintain consistent water quality. Continuous replacement of the water is permitted. Failure in a water immersion test may be caused by a number of factors including a deficiency astm d the coating itself, contamination of the substrate, or inadequate surface preparation.

Knowledge on how a coating resists water immersion is helpful in predicting its service life. 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.

ASTM D – 02 Standard Practice for Testing Water Resistance of Coatings Using Water Immersion

Q-Lab is a worldwide leader in weathering, lightfastness, and corrosion contract testing services. It does not specify specimen preparation, specific test conditions, or evaluation of results. The cover is not to touch the test specimens. It is also possible to use very large tanks for testing coated pipe or other large coated products. This document is not an ASTM standard and is intended only to provide d8870 user of an ASTM standard axtm indication of what changes have been made to the previous version.

If no temperature is speci? It is also possible to use very large tanks for testing coated pipe or other large coated products. Practices D covers application techniques for the production of uniform?

These tests typically result in a pass or fail asfm, but the degree of failure may also be measured.