ISO 7494-2:2015规定了以下方面的要求和试验方法: a） 牙科设备连接至压缩空气供应、供水、抽吸供应和废水排放管道的配置， b） 牙科单元内压缩空气和水系统的材料、设计和施工， c） 进水和空气的质量，以及 d） 牙科单元吸引系统的性能。 ISO 7494-2:2015还规定了使用说明和技术说明的要求。 ISO 7494-2:2015仅限于不用于门诊患者生命支持治疗或需要无菌空气和水源的口腔手术治疗的牙科设备。 ISO 7494-2:2015中不包括汞合金分离器。

ISO 7494-2:2015 specifies requirements and test methods concerning a) the configuration of dental unit connections to the compressed air supply, water supply, suction supply, and wastewater drain plumbing, b) the materials, design, and construction of the compressed air and water system within the dental unit, c) the quality for incoming water and air, and d) the performance of dental unit suction system. ISO 7494-2:2015 also specifies requirements for instructions for use and technical description. ISO 7494-2:2015 is limited to dental units that are not used for life support treatment of ambulatory patients or for oral surgery treatment requiring sterile air and water supplies. Amalgam separators are not included in ISO 7494-2:2015.