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ASTM D 3273

Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber.

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Given below is general information pertaining to the ASTM D 3273 Test: 

 


The ASTM D 3273 method incorporates an environmental chamber with controlled and calibrated conditions of temperature and humidity so as to evaluate reproducibly in a four week period, the relative resistance of coatings or paint films to surface mold, fungi, and mildew growth in severe interior environment.

The test setup utilizes measures which will release fungal spores onto the challenge test pieces, kept hanging in the chamber. The recommended cultures are AureobasidiumAspergillus niger, and Penicillium

Observation of the test and controls is done once in a week and results are based on a rating scale, typically 0-10 range with 10 being clean and 0 being completely covered with growth.

TAT:
 5-6 weeks

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