GOST R 50.05.02-2018 PDF

Full title and description

GOST R 50.05.02-2018 — "Система оценки соответствия в области использования атомной энергии. Оценка соответствия в форме контроля. Унифицированные методики. Ультразвуковой контроль сварных соединений и наплавленных покрытий" (Conformity assessment system in the field of nuclear energy — Conformity assessment in the form of control. Unified methods. Ultrasonic testing of welded joints and deposited/clad surfaces).

Abstract

This national Russian standard provides unified procedures and methods for ultrasonic non‑destructive testing (NDT) of welded joints, deposited (clad) surfaces and their fusion zones as part of conformity assessment activities in the nuclear energy sector. It specifies the form of assessment accomplished by control (inspection) during manufacture, installation and operation.

General information

• Status: Superseded / withdrawn — originally introduced in 2018; replaced by GOST R 50.05.02-2022 (the 2018 edition is no longer the current active version).
• Publication date: Approved by Rosstandart 27 February 2018, introduced into force 1 March 2018.
• Publisher: Federal Agency for Technical Regulation and Metrology (Rosstandart) / National standards of the Russian Federation.
• ICS / categories: Atomic energy / energy and heat engineering — classification OKC/ICS around 27.120 (atomic energy).
• Edition / version: GOST R 50.05.02-2018 (first introduction in 2018).
• Number of pages: Approximately 90 pages in the 2018 publication (published electronic/print formats; later revised by the 2022 edition).

Scope

The standard applies to conformity assessment carried out in the form of ultrasonic control (inspection) of welded joints, surfacing (cladding) and the fusion zones of deposited surfaces for products used in nuclear energy. It covers use of ultrasonic methods during fabrication, installation and operation to assess acceptability of welds and clad layers relative to defined acceptance criteria.

Key topics and requirements

• Defined ultrasonic NDT techniques and unified examination procedures for welded joints and clad surfaces.
• Requirements for equipment calibration, test settings and signal evaluation for defect detection and sizing.
• Acceptance criteria and rules for classification of discontinuities relevant to nuclear‑industry components.
• Inspection zones and scanning schemes for typical welds and surfacing geometries.
• Reporting, record keeping and conformity assessment reporting requirements for control activities.
• Interfaces with related personnel qualification and certification requirements (see related standards for personnel qualification in NDT).

These topics are presented in the national methodology package for conformity assessment in the field of nuclear energy.

Typical use and users

Primary users are NDT engineers, QA/QC specialists, inspection bodies, certification and conformity assessment organizations, and manufacturers/commissioning teams working on equipment and structures for nuclear power plants and other nuclear facilities. Regulatory bodies and test laboratories use the standard as part of conformity assessment procedures.

Related standards

Part of the GOST R 50.05.x series for conformity assessment in the nuclear field. Closely related documents include GOST R 50.05.05 (ultrasonic examination of base materials), GOST R 50.05.11 (personnel requirements and qualification procedures for NDT), GOST R 50.05.15 (terms and definitions) and subsequent revisions such as GOST R 50.05.02-2022 which replaces the 2018 edition. International NDT standards (for example ISO/TOFD and ultrasonic testing standards) are referenced or used in parallel where applicable.

Keywords

ultrasonic testing; non‑destructive testing (NDT); welded joints; cladding / surfacing; conformity assessment; nuclear energy; inspection procedures; acceptance criteria.

FAQ

Q: What is this standard?

A: GOST R 50.05.02-2018 is a Russian national standard that establishes unified ultrasonic inspection methods and procedures used within the conformity assessment system for the field of nuclear energy.

Q: What does it cover?

A: It covers ultrasonic non‑destructive control of welded joints, deposited (clad) surfaces and their fusion zones during manufacture, installation and operation, including procedures, equipment/setting guidance, evaluation and reporting as part of conformity assessment.

Q: Who typically uses it?

A: NDT practitioners, inspection and certification bodies, plant operators, manufacturers and regulators involved with nuclear‑industry components and systems.

Q: Is it current or superseded?

A: The 2018 edition was introduced 1 March 2018 but has been superseded by a later edition (GOST R 50.05.02-2022); the 2018 text is therefore no longer the most current active version. Consult the 2022 edition for the up‑to‑date normative requirements and effective dates.

Q: Is it part of a series?

A: Yes — it is part of the GOST R 50.05 series of standards that form the conformity assessment methodology package for the use of nuclear energy; related parts cover base‑material ultrasonic testing, personnel qualification, terminology and other NDT and conformity topics.

Q: What are the key keywords?

A: Ultrasonic testing, NDT, welded joints, cladding, conformity assessment, nuclear energy, inspection procedures, acceptance criteria.