PNAE G-7-015-89 PDF
Name in English:
PNAE G-7-015-89
Name in Russian:
ПНАЭ Г-7-015-89
Unified control procedures for basic materials (semi-finished products), weld joints and weld deposition of equipment and pipelines of nuclear power units. Magnetic-particle inspection
Full title and description
PNAE G-7-015-89 — "Unified control procedures for basic materials (semi‑finished products), weld joints and weld deposition of equipment and pipelines of nuclear power units. Magnetic‑particle inspection." The document establishes unified methods and acceptance guidance for magnetic‑particle (magnetic‑powder) inspection of base materials, welded joints and weld overlays used in equipment and piping of nuclear power plants.
Abstract
This technical guidance (PNAE G-7-015-89) defines magnetic‑particle testing procedures, sensitivity levels, types and methods of magnetization, requirements for detection media and equipment, surface condition limits, and organizational and documentation rules for inspections of materials, welds and overlays in nuclear power plant equipment and pipelines. It was intended to ensure consistent, reproducible NDT results across design, fabrication and in‑service inspection activities.
General information
- Status: Withdrawn / not in force (document cancelled). Withdrawn from use by regulatory action of the Russian nuclear/regulatory authority (Rostechnadzor) — end of validity recorded 13 August 2018.
- Publication date: Designation year 1989; introduced into force 1 July 1990 (effective date).
- Publisher: Issued under the USSR/Russian nuclear regulatory framework (Gosatomnadzor / Federal nuclear and radiation safety oversight). Commercial reprints/translations have been distributed by standards publishers (Interstandard / national standards sellers).
- ICS / categories: Non‑destructive testing / magnetic particle inspection — generally mapped to ICS 19.100 (non‑destructive testing) and related metal/NDT subclasses (e.g., 77.040.20 for magnetic particle inspection contexts).
- Edition / version: Original PNAE designation G‑7‑015‑89 (1989); introduced 1 July 1990.
- Number of pages: Typically published as ~22 pages in official collections / reprints. (Some commercial files may differ by layout — variants with shorter digital extracts exist.)
Scope
PNAE G‑7‑015‑89 applies to magnetic‑particle examination of surfaces of base materials (semi‑finished products), welded joints and weld overlays of equipment and pipelines of nuclear power units. It is mandatory for ministries, organizations and enterprises involved in design, manufacture, installation and operation of nuclear power plant equipment where PNAE/PB regulatory rules apply; the document sets control extents consistent with PNAE G‑7‑010‑89 requirements for welds and overlays.
Key topics and requirements
- Defined magnetic‑particle testing procedures and permitted magnetization methods (direct and indirect) and application techniques for welds and parent materials.
- Sensitivity levels and acceptance/verification criteria (grouped sensitivity levels A, B, V with minimum detectable defect widths and lengths and surface roughness limits).
- Requirements for detection media, viewing and lighting conditions, marking of indications, and recording inspection results.
- Requirements for inspection equipment, calibration specimens and procedures to ensure reproducibility.
- Organizational rules: responsibilities, personnel qualification/authorization, documentation and quality control of inspection activities.
- Integration with other PNAE rules for weld control (reference to PNAE G‑7‑010‑89 for weld acceptance specifics).
Typical use and users
Primary users include nuclear power plant designers, fabricators and erection contractors, in‑service inspection teams, independent NDT laboratories and regulatory inspectors responsible for ensuring weld and material integrity in atomic energy installations. The guidance was used where consistent MPI procedures and acceptance were required across organizations involved in NPP equipment manufacture and operation.
Related standards
Documents commonly referenced with or as successors to PNAE G‑7‑015‑89 include PNAE G‑7‑010‑89 (rules for control of welded joints and overlays), national GOST/R guidance and the successor national document GOST R 50.05.06‑2018 which superseded or replaced certain PNAE provisions. Internationally relevant MPI/NDT standards include ISO 9934 (magnetic particle testing series), ISO 3059 (viewing conditions) and ISO 17638 / ISO 23278 for welds.
Keywords
PNAE G‑7‑015‑89; magnetic‑particle inspection; magnetic‑powder control; MPI; nondestructive testing; NDT; weld inspection; nuclear power plant equipment; weld overlays; sensitivity levels; Gosatomnadzor; GOST R 50.05.06‑2018.
FAQ
Q: What is this standard?
A: PNAE G‑7‑015‑89 is a Soviet/Russian nuclear regulatory guidance document specifying unified magnetic‑particle inspection procedures for base materials, welds and weld overlays used in nuclear power plant equipment and pipelines. It was issued with a 1989 designation and introduced into effect on 1 July 1990.
Q: What does it cover?
A: It covers methods and procedural requirements for magnetic‑particle testing: magnetization methods, sensitivity/acceptance levels, detection media and equipment requirements, inspection organization, recordkeeping and integration with weld acceptance rules for NPP components.
Q: Who typically uses it?
A: Engineers, fabricators, NDT technicians and inspectors working on design, manufacture, installation and in‑service inspection of nuclear power plant equipment and pipelines; regulatory bodies and NDT laboratories referenced by nuclear safety rules.
Q: Is it current or superseded?
A: The document is no longer current; it was recorded as withdrawn/not in force (cancellation noted 13 August 2018) and many of its provisions have been superseded or consolidated into later national standards (for example GOST R 50.05.06‑2018 and related normative documents). Users should follow the currently active national/regulatory standards and Rostechnadzor/industry rules for NDT in nuclear installations.
Q: Is it part of a series?
A: Yes — PNAE G‑7‑015‑89 is one of a set of PNAE/PB guidance documents covering control and testing of materials and welds for atomic energy installations; it is related to other PNAE titles such as PNAE G‑7‑010‑89 (weld control rules) and other G‑7 series documents.
Q: What are the key keywords?
A: Magnetic‑particle inspection (MPI), magnetic‑powder control, nondestructive testing (NDT), weld inspection, nuclear power plant (NPP), sensitivity levels, PNAE, Gosatomnadzor, GOST R.