ASTM D/DM: Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation. Designation: D – 07 Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation1 This standard is issued. ASTM D/DM Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation. standard by ASTM.
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Cleveland Condensing Type Cabinet
Practice G 53 has been replaced by Practice G However, it is possible to test the blister resistance of house paints on wood specimens by mounting the uncoated 4d585 surface facing the inside of the chamber. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
The quality of the water in the pan does not affect the test since the evaporation and condensation process yields distilled water, but the use of tap water can result in the accumulation of residues in the water pan. A recovery period from 12 to 24 h is generally sufficient. Failure in a condensation test may be caused by a number of factors including a de? NOTE 4—A 3 mm glass plate in place of a sample will work to monitor whether condensation is occurring.
Link to Active This link will always route to the current Active version of the standard. 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.
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Work Item s – proposed revisions of xstm standard.
ASTM D 控制冷凝法对涂层耐水性试验方法_百度文库
The removal of specimens for inspections during operation is permitted. Such control specimens can provide warning of changes in test severity in a given apparatus, and can indicate variations in test severity between different apparatuses.
Users of this standard are expressly advised that determination of the validity of any such patent rights, xstm the risk of infringement of such rights, are entirely their own responsibility.
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. Approved June 1, Maximum thickness is 8 mm 3?
Failure in a condensation test may be caused by a number of factors including a deficiency in the coating itself, contamination of the substrate, or inadequate surface preparation. Minimum size is mm 3-in.
A number in parentheses indicates the year of last reapproval. It does not specify specimen preparation, specific test conditions, or evaluation of results. These tests usually result in a pass aztm fail determination but the degree of failure also may be measured. Current edition approved June 1, Mount coated metal panels with the coating to be tested facing the inside of the chamber.
ASTM International – Standard References for ASTM D / DM – 18
The values given in parentheses are for information only. A superscript epsilon e indicates an editorial change since the last revision or reapproval. These tests usually result in a v4585 or fail determination but the degree of failure also may be measured.
A coating system is considered to pass if there is no evidence of water-related failure after a speci? Last previous edition approved in as D — Condensate usually seals cracks or d485 smaller than 1 mm 0. A coating system is considered to pass if there is no evidence of water-related failure after a specified period of time.
Drying periods should be at least 4 h long. This practice is derived from research of the Dd4585 Society for Coatings Technology. The test is therefore useful for evaluating coatings alone or complete coating systems. Remove only as many specimens as can be rated asgm the speci? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
Originally approved in Various types of tape can be used to seal the gaps that develop when the specimen deforms. Other temperatures may be used provided that the temperature is reported in conformance with Section 8.
The specimens form the roof or walls of the test chamber so that the back sides of the specimens are exposed to the cooling effects of room temperature air.
This practice is derived from research of the Cleveland Society for Coatings Technology. Combining values from the two systems may result in non-conformance with the standard. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone aetm, faxor service astm.