本标准提供了用于评估处理方法有效性的型式试验方法，这些方法旨在防止或抑制生物膜的形成，或在实验室条件下去除牙科单元程序供水系统中存在的生物膜。本标准不适用于输送无菌程序用水或无菌溶液的设备。它也不适用于在牙科单元内输送压缩空气的管路、管道或软管。本标准未规定细菌污染的具体上限，也未描述临床情况下使用的试验方法。 它也没有建立评估治疗方法可能引起的任何有害副作用的测试方法。本标准中提供的测试方法可用于测试向口腔输送非无菌水的其他牙科设备。

This standard provides type test methods for evaluating the effectiveness of treatment methods intended to prevent or inhibit the formation of biofilm or to remove biofilm present in dental unit procedural water delivery systems under laboratory conditions.This standard does not apply to devices intended to deliver sterile procedural water or sterile solution. It also does not apply to lines, tubing, or hoses that deliver compressed air within the dental unit.This standard does not establish specific upper limits for bacterial contamination or describe test methods to be used in clinical situations. It also does not establish test methods for evaluating any deleterious side effects potentially caused by treatment methods.The test methods provided in this standard can be used to test other dental equipment that delivers non-sterile water to the oral cavity.