本出版物代表了天然气隔膜泵安全运行、坚固耐用结构和可接受性能的基本标准。这是多年来在天然气隔膜泵的制造、测试、安装、维护、检查和研究方面经验的结晶，该隔膜泵设计用于天然气的利用。某些设备存在对人员造成伤害的风险，如果完全消除，将破坏设备的效用。本标准中的规定旨在减少此类风险，同时保持设备的正常功能。

This publication represents a basic standard for safe operation, substantial and durable construction, and acceptable performance of natural gas operated diaphragm pumps. It is the result of years of experience in the manufacture, testing, installation, maintenance, inspection and research on natural gas operated diaphragm pumps designed for the utilization of gas. There are risks of injury to persons inherent in some appliances that, if completely eliminated, would defeat the utility of the appliance. The provisions in this Standard are intended to reduce such risks while retaining the normal function of the appliance.