1.1 本试验方法旨在评估聚合物材料以及可能直接接触处理过的聚合物的产品对放线菌染色的敏感性 链霉菌属 种 1.2 该测试方法也适用于评估深色测试样品，因为可以评估细菌生长抑制。 1.3 需要熟悉微生物学技术。未经至少基本微生物学培训的人员不得使用该测试方法。 1.4 以国际单位制表示的值应视为标准值。本标准不包括其他测量单位。 1.5 本标准并不旨在解决与其使用相关的所有安全问题（如有）。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（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 方法如 第3273页 环境室内室内涂层表面耐霉菌生长的标准试验方法 第3274页 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涂料上霉菌和藻类污染的方法。试验方法 第1428页 通过以下方法评估聚合物固体中或聚合物固体上的抗菌剂的防污性能 链霉菌属 种（A Pink Stain Organism）用于固体聚合材料，但不适用于所有抗菌技术。 5.2 本试验方法提供了一种评估聚合物材料中或聚合物材料上抗菌剂的技术 链霉菌属 物种，并有助于预测在实际现场条件下处理物品的性能。

1.1 This test method is intended to assess susceptibility of polymer materials, as well as products that may directly contact the treated polymer, to staining by the Actinomycete Streptomyces species. 1.2 This test method is also suitable for evaluating dark-pigmented test samples since the bacterial growth inhibition can be assessed. 1.3 Familiarity with microbiological techniques is required. This test method should not be used by persons without at least basic microbiological training. 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 D3273 Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber and 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. The Test Method E1428 Evaluating the Performance of Antimicrobials in or on Polymeric Solids Against Staining by Streptomyces species (A Pink Stain Organism) is used for solid polymeric materials, but is not appropriate for all antimicrobial technologies. 5.2 This test method provides a technique for evaluating antimicrobials in or on polymeric materials against staining by Streptomyces species and should assist in the prediction of performance of treated articles under actual field conditions.