1.1 确定纺织品（如服装、单件商品、家居用品，以下简称“纺织品”或“纺织品”）在多次家庭洗涤中的标准抗菌处理的耐久性。 1.2 该实践将使用抗菌剂处理的纺织品在定义的参数下进行多次模拟和加速家庭洗涤，以便使用标准行业公认的协议进行可重复和可靠的抗菌分析。 1.3 对于某些抗菌剂，由于暴露于洗涤剂溶液和多次家庭洗衣的磨蚀作用而产生的抗菌性能的耐久性已被证明约为1.45- 分钟清洗周期。对于每种抗菌剂，应分别确定明确的洗衣护理说明与实践中确定的暴露条件之间的确切相关性。 1.4 后续的微生物方法应由在微生物程序和适合处理受试微生物的设施方面经验丰富和熟练的人员进行。 1.5 本标准可能涉及危险材料、操作和设备。 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====== 5.1 用于纺织品的抗菌剂的耐久性是市场上许多可用技术的一个重要属性。要求耐久性的抗菌剂通常以离子、共价或物理方式或两者兼有的方式固定在纺织品表面，并预计在5次、25次或50次洗涤后保留其抗菌功能。 5.2 纺织品洗涤标准确实存在，衡量各种特性，如色牢度或柔软剂保持力、起球，甚至拉链装饰涂层的外观； 然而，不存在专门用于测量直接应用于纺织品表面的抗菌剂的耐久性的洗涤方法。 5.3 目前的洗涤标准是为了紧密模拟（AATCC TM135）或加速（AATCC TM61）正常家庭洗涤过程中的洗涤条件。虽然在测试纺织品的物理性能时证明是有效的，但这些方法为洗涤方案引入了变量，这些变量可以直接影响织物的最终抗菌性能。 例如，许多清洗方案添加漂白剂或软化剂，这些漂白剂或软化剂会随着时间的推移而积累，并可能在行业标准微生物测试中引入假阳性结果。相反，如果每次清洗后未完全冲洗，粉末洗涤剂会留下残留的表面活性剂，这些表面活性剂会随着时间的推移而积聚，但通常在磨损过程中会被去除。这些残留洗涤剂可能会覆盖抗菌表面，并提供假阴性结果。 5.4 本实践中确定了非常具体的参数，以密切复制先前洗涤协议（AATCC TM61）中确定和研究并在纺织行业内接受的家庭洗衣。 本规程使用的洗涤剂和洗涤条件限制了洗涤过程中样品的潜在交叉污染以及残留洗涤剂在测试织物上的不现实沉积。这些条件提高了后续微生物测试方法的再现性和可靠性。 5.5 本规程允许对纺织品进行简单清洗，以进行后续抗菌测试。根据该清洗方案，可以使用任何行业公认的抗菌测试标准。 5.6 这种做法适用于多孔材料，如纺织品或任何可承受多次家庭洗涤的多孔软基材。 本规程旨在测量此类材料的耐用抗菌性能。在大多数情况下，需要进一步的研究来支持和证实在实践中或作为监管过程的一部分对处理材料的性能提出的实际要求。 5.7 该标准实践证明，在测量聚合物基抗菌剂对家庭洗涤条件的耐久性方面是有效的。基于颗粒的抗菌剂或其他抗菌剂可能需要修改当前方法，以在实践中模拟洗涤条件。 对于每种抗菌活性物质，必须分别确定抗菌处理物品上表达的洗衣护理说明与标准实践中确定的暴露条件之间的确切相关性。

1.1 To determine the durability of standard antibacterial treatments on textile products such as apparel, piece goods, household articles, hereinafter referred to as “textile” or “textile products” to multiple home launderings. 1.2 This practice subjects textile products treated with antimicrobial agents to multiple simulated and accelerated home launderings under defined parameters such that reproducible and reliable antimicrobial analysis can be performed using standard industry accepted protocols. 1.3 For some antimicrobial agents, the durability of antibacterial properties resulting from exposure to detergent solution and abrasive action of multiple home launderings has been shown to be approximated by one 45-minute laundering cycle. The exact correlation between expressed laundry care instructions and exposure conditions identified in the practice should be determined separately for every antimicrobial agent. 1.4 The subsequent microbiological methods shall be performed by individuals experienced and adept in microbiological procedures and in facilities suitable for the handling of the microorganisms under test. 1.5 This standard may involve hazardous materials, operation, and equipment. 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 The durability of antimicrobial agents applied to textiles is an important attribute for many of the available technologies on the market. Antimicrobial agents that claim durability are typically fixed ionically, covalently or physically, or both, to a textile surface and are expected to retain their antimicrobial functionality after 5, 25 or 50 washes. 5.2 Textile wash standards do exist that measure features as diverse as colorfastness or softener retention, pilling, or even the appearance of the decorative coatings of a zipper; however, no wash method exists that is specific for measuring the durability of an antimicrobial agent applied directly into or onto a textile surface. 5.3 Current wash standards have been written to either closely simulate (AATCC TM135) or accelerate (AATCC TM61) the laundering conditions that would be experienced during normal home laundering. While shown to be effective when testing physical properties of textiles, these methods introduce variables to the washing protocol that can directly affect the final antimicrobial properties of a fabric. For example, many wash protocols add bleach or softeners which can build up over time and may introduce false positive results in industry standard microbiological tests. Conversely, powdered detergents if not completely rinsed after each wash can leave residual surfactants that can build up over time but are generally removed during wear. These residual detergents can potentially coat an antimicrobial surface and provide false negative results. 5.4 Very specific parameters are identified within this practice to closely replicate home launderings as identified and studied in previous wash protocols (AATCC TM61) and accepted within the textile industry. This practice uses detergents and washing conditions which limit potential cross contamination of samples during washing and unrealistic deposition of residual detergents on the test fabric. These conditions increase the reproducibility and reliability of subsequent microbiological test methods. 5.5 This practice allows for the simple washing of textile fabrics for the subsequent antimicrobial testing. Any industry accepted antimicrobial test standard could be used following this washing protocol. 5.6 This practice is appropriate for porous materials such as textiles or any porous, soft substrate that is intended to withstand multiple home washes. This practice is intended to measure the durable antibacterial properties of such materials. In most instances, further studies will be required to support and substantiate actual claims being made for the performance of treated materials in practice or as part of a regulatory process. 5.7 This standard practice has been shown to be effective at measuring the durability of polymer based antimicrobial agents to home laundering conditions. Particle based or other antimicrobial agents may require modifications of the current methodology to simulate laundering conditions in practice. The exact correlation between expressed laundry care instructions on the antimicrobial treated article and the exposure conditions identified in the standard practice must be determined separately for every antimicrobial active.