Piping component standards 管道组成件标准
The standard covers dimensions and gaging of plastic tapered National Pipe Threads (NPT) for leak-tight joints, and it is now referenced in all ASTM Standards for plastic piping products.
这个标准涵盖塑料美国锥管螺纹(NPT)的尺寸和计量方法，用于泄漏密封连接，现在已在所有有关塑料管道产品的ASTM标准中引用。
Plastic piping systems should be engineered, installed, operated and maintained in accordance with accepted standards and procedures for plastic piping systems.
塑料管道系统应该根据有关塑料管道系统的公认的标准和规程进行工程设计、安装、操作和维护。
Organizations other than ASTM issue standards that are commonly encountered in industrial thermoplastic piping design. The most important of these are described below.
除了ASTM以外，其它有关组织也颁布一些规定，通常适用于工业热塑塑料管道设计。这些规定中最重要的部分描述如下。
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