ANSI/ANS 19.6.1-2019适用于需要进行核设计计算的压水堆（PWR）换料或其他堆芯改造后进行的反应堆物理试验。本标准不涉及商用压水堆初始堆芯的物理试验程序。本标准规定了最低可接受启动反应堆物理试验程序，以确定堆芯的运行特性是否与设计预测一致，从而确保堆芯能够按设计运行。 本标准不涉及运行或其他要求试验期间反应堆物理参数的监督，例如系统部件的机械试验（例如，落棒时间试验）、燃料组件加载的目视验证要求，或仪器或控制系统的校准（尽管这些测试是确保堆芯按设计运行的整体计划的组成部分）。关键词:轻水堆，轻水堆，核安全，压水堆，压水堆，反应堆物理

ANSI/ANS 19.6.1-2019 applies to the reactor physics tests that are performed following a refueling or other core alteration of a pressurized water reactor (PWR) for which nuclear design calculations are required. This standard does not address the physics test program for the initial core of a commercial PWR. This standard specifies the minimum acceptable startup reactor physics test program to determine if the operating characteristics of the core are consistent with the design predictions, which provides assurance that the core can be operated as designed.This standard does not address surveillance of reactor physics parameters during operation or other required tests, such as mechanical tests of system components (for example, the rod drop time test), visual verification requirements for fuel assembly loading, or the calibration of instrumentation or control systems (even though these tests are an integral part of an overall program to ensure that the core behaves as designed).Keywords:LWR, Light Water Reactor, Nuclear Safety, PWR, Pressurized Water Reactor, Reactor Physics