ASTM-D5590 › Historical Revision Information
Standard Test Method for Determining the Resistance of Paint Films and Related Coatings to Fungal Defacement by Accelerated Four-Week Agar Plate Assay
The following bibliographic material is provided to assist you with your purchasing decision:
Scope
1.1 This test method covers an accelerated method for determining the relative resistance of two or more paints or coating films to fungal growth.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.
Significance and Use
Defacement of paint and coating films by fungal growth (mold, mildew) is a common phenomenon, and defacement by algal growth can also occur under certain conditions. It is generally known that differences in the environment, lighting, temperature, humidity, substrate pH, and other factors in addition to the coating composition affect the susceptibility of a given painted surface. This test method attempts to provide a means to comparatively evaluate different coating formulations for their relative performance under a given set of conditions. It does not imply that a coating that resists growth under these conditions will necessarily resist growth in the actual application.
Note 1—It is hoped that a ranking of relative performance would be similar to that ranked from outdoor exposures. However, this test method should not be used as a replacement for exterior exposure (that is, Practice D 3456
Note 2—Several companies have reported reasonable correlation of results from this test with actual use when testing film-forming, pigmented coatings. Round-robin testing of this test method versus exterior exposure is planned.
Familiarity with microbiological techniques is required. This test method should not be used by persons without at least basic microbiological training.
Keywords
agar plate assay; fungi; fungal resistance; mildew; mold; ICS Number Code 87.040 (Paints and varnishes)
To find similar documents by ASTM Volume:
06.01 (Paint -- Tests for Chemical, Physical, and Optical Properties; Appearance)
To find similar documents by classification:
87.040 (Paints and varnishes Including coating powders, paint coatings and protective paint systems)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-D5590-00(2005)
Revision Level
2000 R05 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Dec. 1, 2005
Document Type
Test Method
Page Count
4 pages
Committee Number
D01.28