1.1 本试验方法旨在定性评估平面二维乙烯基薄膜和其他固体聚合物产品以及可能直接接触乙烯基的产品对放线菌粉红色染色的敏感性 链霉菌属 该测试方法可能不适用于高度纹理化或多孔的基材。 1.2 该测试方法不适用于评估深色测试样品。 1.3 建议对这些程序了解微生物技术。 1.4 以国际单位制表示的值应被视为标准值。本标准不包括其他计量单位。 1.5 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。 本标准的使用者有责任在使用前建立适当的安全、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》中确立的国际公认的标准化原则制定的。 =====意义和用途====== 5.1 测试方法等方法 D3273 环境室中内部涂层表面霉菌生长阻力的标准试验方法和试验方法 D3274 通过真菌或藻类生长或土壤或污垢积聚评估漆膜表面缺陷程度的标准试验方法提供了评估油漆上霉菌和藻类污染的方法。 5.2 本试验方法提供了一种通过以下方式评估聚合物固体中或其上的抗菌剂是否染色的技术 链霉菌属 ，细菌，并应有助于预测处理过的物品在实际现场条件下的性能。 5.3 标本的调节，如暴露于浸出、风化和热处理，可能会对抗菌剂的抗染色性能产生重大影响。这些影响的测定不包括在本试验方法中。

1.1 This test method is intended to qualitatively assess susceptibility of flat two dimensional vinyl films and other solid polymer products as well as products that may directly contact vinyl to pink-staining by the actinomycete bacteria Streptomyces species . This test method may not be suitable for highly textured or porous substrates. 1.2 This test method is not suitable for evaluating dark-pigmented test samples. 1.3 A knowledge of microbiological techniques is recommended for these procedures. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 ====== 5.1 Methods such as Test Method D3273 Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber and Test Method D3274 Standard Test Method for Evaluating the Degree of Surface Disfigurement of Paint Films by Fungal or Algal Growth or Soil or Dirt Accumulation provide means for assessing mold and algal staining on paints. 5.2 This test method provides a technique for evaluating antimicrobials in or on polymeric solids against staining by Streptomyces species , bacteria and should assist in the prediction of performance of treated articles under actual field conditions. 5.3 Conditioning of the specimens, such as exposure to leaching, weathering, and heat treatment, may have significant effects on performance of antimicrobials against staining. Determination of these effects is not included in this test method.