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。
In the following test cycle the standard leak will be connected through the chamber at that moment where the test sample will be filled with test pressure.
在测试中，标准泄漏此时将接到气室，而气室内的试件就充满了测试压力。测试结束时，结果就显示在屏幕上。
In calibrating the leak, the pressure in the ballast chamber can be precisely controlled in such a way that the standard gas flow through the orifice is close or equal to the leak rate.
在漏孔校准过程中，通过调节稳压室中的压力，很容易使标准气体流量与漏孔漏率非常接近或相等，从而避免四极质谱计的非线性影响。
Mostly item of doctor's advice leak were content of "seven check" and price standard column.
医嘱漏洞的项目主要是“七对”内容和计价规格栏目。
Through the leak-rate comparison with PTB using standard leak, the reliability of uncertainty evaluation results has been verified.
通过传递标准漏孔与德国PT B开展了漏率比对，验证了测量不确定度评估结果的可靠性。
Through the leak-rate comparison with PTB using standard leak, the reliability of uncertainty evaluation results has been verified.
通过传递标准漏孔与德国PT B开展了漏率比对，验证了测量不确定度评估结果的可靠性。
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