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• Astm D638 Type 3
• Astm D638 Pdf Free Download Windows 10

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.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. The test is therefore useful for evaluating coatings alone or complete coating systems. Failure in a condensation test may be caused by a number ast, factors including a deficiency in the coating itself, contamination of the substrate, or inadequate surface preparation.

A coating system is considered to pass if there aztm no evidence of water-related failure after a specified period of time. The values given in parentheses are for information only. The post-recovery rating allows evaluation of the permanent effects of the exposure as distinct from atsm transient effects, and is especially important for evaluation of color and gloss.

• Be sure that the sample is free of voids. ASTM D792 Density (Specific Gravity) by Displacement. Carefully compression mold the sample to be tested. Cut the sample to a convenient size and also check for voids. (We use a Carver hydraulic press to make sure samples are void free!).
• ASTM C33/C33M-18,Standard Specification for Concrete Aggregates.This document is Shared by Grace from USA.ASTM C33 / C33M-18 PDF is available for free download. Key words:aggregates,coarse aggregate,concrete aggregates,fine aggregate. ASTM C33/C33M-18 is for use by a contractor, concrete supplier.
• Be sure that the sample is free of voids. ASTM D792 Density (Specific Gravity) by Displacement. Carefully compression mold the sample to be tested. Cut the sample to a convenient size and also check for voids. (We use a Carver hydraulic press to make sure samples are void free!).

Automatic drying requires the apparatus described in 5. Condensation is produced by exposing one surface of a coated specimen to a heated, saturated mixture of air and water vapor, while the reverse side of the specimen is exposed to the cooling effect of room temperature air.

Last previous edition approved in as D — Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Mount coated metal panels with the coating to be tested facing the inside of the chamber.

ASTM Standard D7234-12 for Pull Off Adhesion Strength of Coatings b. ASTM Standard G62-14 for Holiday Detection in Pipeline Coat ings III. Third Part Test Results Against ASTM and Other Standards a. ASTM D638 - Tensile Properties b. ASTM D695 - Compressive Strength c. ASTM D790 - Flexural Modulus d. ASTM D2240 - Hardness e.

Locate the chamber away from air vents and direct drafts. Condensation is produced by exposing one surface of a coated specimen to a heated, saturated mixture of air and water vapor, while the reverse side of the specimen is exposed to the cooling effect of room temperature air. Combining values from the two systems may result in non-conformance with the standard.

Cleveland Condensing Type Cabinet

Historical Version s – view previous versions of standard. While corrosion products will drain into the water bath, they are not carried into the vapor that condenses on the test specimens. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Other temperatures may be used provided that the temperature is reported in conformance with Section 8.

If the specimens cannot completely? Do not leave the specimens in the apparatus at the conclusion of the test as the specimens can remain wet for hours, or even days, when the apparatus is turned off. Minimum size is mm 3-in.

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. It does not specify specimen preparation, specific test conditions, or evaluation of results.

A recovery period from 12 to 24 h is generally sufficient. 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. The removal of specimens for inspections during operation zstm permitted.

If the test panels overshadow the upper shelf, do not put test panels on the upper shelf. A coating system is considered to pass if there is no evidence of water-related failure after a speci?

Materials thicker than 8 mm 3? Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.

While corrosion products will drain into the water bath, they are not carried into the vapor that condenses on the test specimens. The test specimens are inclined so that condensate runs off the test surface by gravity and is replaced by fresh condensate in a continuous process during the condensate cycle. For manual drying of specimens, remove them from the apparatus.

Rate specimens for changes in color, blistering, etc. When removing a specimen for inspection, replace it with a blank so that the test conditions are not altered. Alternative practices for testing water resistance of coatings include Practices DDand D NOTE 4—A 3 mm glass plate in place of a sample will work to monitor whether condensation is occurring. This standard is subject to revision at any time by the wstm technical asgm and must be reviewed every? Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

Astm D638 Type 3

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Practices D cover application techniques for the production of uniform? Coated wood specimens may be mounted in the same way.

It does not specify specimen preparation, speci? The specimens should be mounted to avoid gaps between specimens that allow heat and moisture to escape. Maximum thickness is 8 mm wstm The quality of the water in the pan d455 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.

Practice G 53 has been replaced by Practice G Certain substrates may deform from the heat and moisture.

ASTM International – Standard References for ASTM D / DM – 18

Originally approved in ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Link to Active This link will always route to the current Active version of the standard. 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.

The water quality should be agreed upon between the customer and the supplier for running this test. 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 D638 Pdf Free Download Windows 10