ISO 18077:2022

Reload startup physics tests for pressurized water reactors ISO 18077:2022

General information

60.60 Standard published   Dec 7, 2022

ISO

ISO/TC 85/SC 6 Reactor technology

International Standard

27.120.10   Reactor engineering

Scope

This document applies to the reactor physics tests that are performed following a refuelling or other core alteration of a PWR for which nuclear design calculations are required. This document does not address the physics test program for the initial core of a commercial PWR.
This document 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 document 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).

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 18077:2018

NOW

PUBLISHED
ISO 18077:2022
60.60 Standard published
Dec 7, 2022