1.1 本试验方法描述了环境室的使用和操作条件，以评估内部涂层在4周内对恶劣内部环境中表面真菌生长的相对阻力。 1.2 该试验方法可用于评估内部涂层对加速霉菌生长的相对阻力。特定等级的性能并不意味着无真菌涂层的任何特定时间段。然而，额定值更好的涂层在实际最终使用中几乎总是表现更好。 注1: 本试验方法旨在加速评估内部涂层的抗真菌性。使用本试验方法评估外部涂层的性能尚未得到验证，也未确定此类使用的局限性。如果本试验方法用于测试外部涂层系统，则试验报告中必须包含一份关于将结果解释为不在本试验方法范围内的预防说明。 应报告任何加速风化（浸出、风化机暴露等），并应参考其超出本试验方法当前范围的事实。 1.3 温度和湿度必须有效控制在规定的相对较窄的限制范围内，以使试验箱在较短的试验期间重复运行。膜上霉菌生长的严重程度和速率是膜和基质含水量的函数。 相对湿度>93 % 在32.5±1的温度下 °C（90±2 °F）是启动和维持霉菌生长所必需的，也是测试板快速生长和保持足够湿度以支持霉菌生长所必需的。 1.4 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 3.1 用于测定内部涂层抗霉菌生长的加速试验有助于评估设计用于促进霉菌生长的内部环境的涂层的性能，并有助于评估可能抑制霉菌生长的化合物及其使用的聚集水平（另请参见 注1 ). 3.2 本试验方法最好由受过基本微生物学培训的人员使用。

1.1 This test method describes the use of an environmental chamber and operating conditions to evaluate the relative resistance of interior coatings to surface fungal growth in a severe interior environment during a 4-week period. 1.2 This test method can be used to evaluate the comparative resistance of interior coatings to accelerated mold growth. Performance at a certain rating does not imply any specific period of time for a fungal free coating. However, a better rated coating nearly always performs better in actual end use. Note 1: This test method is intended for the accelerated evaluation of an interior coatings’ resistance to fungal defacement. Use of this test method for evaluating exterior coatings’ performance has not been validated, nor have the limitations for such use been determined. If this test method is to be used for the testing of an exterior coating system, a precautionary statement regarding interpretation of results as being outside of the scope of this test method must be included in the test report. Any accelerated weathering (leaching, weathering machine exposure, etc.) should be reported and should also bear reference to the fact that it is beyond the current scope of this test method. 1.3 Temperature and humidity must be effectively controlled within the relatively narrow limits specified in order for the chamber to function reproducibly during the short test period. Severity and rate of mold growth on a film is a function of the moisture content of both the film and the substrate. A relative humidity of >93 % at a temperature of 32.5 ± 1 °C (90 ± 2 °F ) is necessary to initiate and maintain mold growth and for test panels to develop rapidly and maintain an adequate moisture level to support mold growth. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 3.1 An accelerated test for determining the resistance of interior coatings to mold growth is useful in estimating the performance of coatings designed for use in interior environments that promote mold growth and in evaluating compounds that may inhibit such growth and the aggregate levels for their use (see also Note 1 ). 3.2 This test method should preferably be used by persons who have had basic microbiological training.