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AWPA E24-16
- Laboratory Method for Evaluating the Mold Resistance of Wood-based Materials: Mold Chamber Test
- standard by American Wood Protection Association, 2016
- Publisher: AWPA
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Scope:
1.1 This Standard provides an evaluation method forassessing the resistance of surfaces of wood products,treated or untreated, coated or uncoated, to the growth ofmolds. The main objective of the method is to determinethe relative resistance of wood products to surface growthof molds in an environment favorable for growth of fungi.Resistance to mold growth is evaluated relative to referenceproducts and unprotected sapwood of a species of pine.Pine sapwood is included as an untreated control substrateto indicate viability of molds in the test chamber andseverity of growth conditions. This test method may also beused to evaluate compounds or formulations that mayinhibit fungal growth and the aggregate levels for their use.Products evaluated with this method would be intended foruse in interior environments where the products may beunintentionally subjected to conditions favorable to thegrowth of molds. This Standard is based on the ASTMStandard Test Method D 3273-00, Standard Test Methodfor Resistance to Growth of Mold on the Surface of InteriorCoatings in an Environmental Chamber. This test methodis intended to be a screening test.
1.2 The method is applicable to the testing of commercialor experimental wood products designed to be resistant tothe growth of molds. Performance at a certain rating doesnot imply any specific period of time for a fungal freesurface in service, however products with a better ratingwould likely perform better in actual end use.
1.1 This Standard provides an evaluation method forassessing the resistance of surfaces of wood products,treated or untreated, coated or uncoated, to the growth ofmolds. The main objective of the method is to determinethe relative resistance of wood products to surface growthof molds in an environment favorable for growth of fungi.Resistance to mold growth is evaluated relative to referenceproducts and unprotected sapwood of a species of pine.Pine sapwood is included as an untreated control substrateto indicate viability of molds in the test chamber andseverity of growth conditions. This test method may also beused to evaluate compounds or formulations that mayinhibit fungal growth and the aggregate levels for their use.Products evaluated with this method would be intended foruse in interior environments where the products may beunintentionally subjected to conditions favorable to thegrowth of molds. This Standard is based on the ASTMStandard Test Method D 3273-00, Standard Test Methodfor Resistance to Growth of Mold on the Surface of InteriorCoatings in an Environmental Chamber. This test methodis intended to be a screening test.
1.2 The method is applicable to the testing of commercialor experimental wood products designed to be resistant tothe growth of molds. Performance at a certain rating doesnot imply any specific period of time for a fungal freesurface in service, however products with a better ratingwould likely perform better in actual end use.
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