1.范围1。1本标准包含表面安装、隐藏在门内、顶部隐藏和隐藏在地板内的闭门器的要求。还包括地板闭合器的枢轴。符合性标准包括循环、操作、关闭力和完成测试。还包括应单独规定的可选试验。1.2本标准中的试验是在中性空气压力实验室条件下进行的，温度在60至85华氏度之间。在实际使用中，由于安装、维护和环境条件的不同，结果会有所不同。实际性能受波动的环境条件（如风和压差）影响，请咨询工厂以获得建议。 1.3防火门上的使用贴有标签的防火门组件上使用的闭门器应由国家认可的独立测试实验室列出或贴上标签，并定期进行厂内跟踪服务。有关适当的耐火试验要求，请咨询有管辖权的机构。

1. SCOPE1.1This Standard contains requirements for door closers surface mounted, concealed in the door, overhead concealed and concealed in the floor. Also included are pivots for floor closers. Criteria for conformance include cycle, operational, closing force and finish tests. Optional tests which shall be specified separately are also included.1.2Tests in this Standard are performed under neutral air pressure laboratory conditions and between 60 and 85 degrees F. In actual usage results vary because of installation, maintenance, and environmental conditions. Actual closer performance is affected by fluctuating ambient conditions such as wind and pressure differentials, consult factory for recommendations.1.3 Use on Fire DoorsA door closer used on labeled fire door assemblies shall be listed or labeled by a nationally recognized independent testing laboratory, and be subject to a periodic in-plant follow-up service. Consult the authority having jurisdiction for the appropriate fire test requirements.