GOST 22727-88 PDF

Full title and description

GOST 22727-88 (ГОСТ 22727-88). English title: "Rolled sheet. Ultrasonic test methods" (Russian: "Прокат листовой. Методы ультразвукового контроля"). The standard specifies ultrasonic inspection methods for rolled sheet products made of carbon and alloy steels, including two-layer material, and gives requirements for techniques, control samples and instrumentation used to detect discontinuities such as delaminations, clusters of non‑metallic inclusions, laps, and plating-layer separations.

Abstract

GOST 22727-88 defines echo, shadow, echo-through (through-transmission) and combined mirror-shadow ultrasonic testing methods for sheet-rolled steel with thicknesses from 0.5 mm up to 200 mm. It describes the intended defect types to be detected and the use of control specimens, characteristic diagrams and equipment parameters; it does not prescribe defect-type classification (orientation/type) beyond detection and conditional/equivalent sizing.

General information

• Status: Listed as active in major standards collections (document databases show the standard as действующий / in force), with historical archival notes about earlier administrative actions. Users should verify the legal/regulatory status in the official national registry before use.
• Publication date: Introduced/entered into force 1 July 1989 (approved 1988; designation ends "-88").
• Publisher: Issued as a USSR / Interstate Standard (Gosstandart / Межгосударственный стандарт); published in standard collections.
• ICS / categories: Non‑destructive testing / ultrasonic testing; OКС (example) 77.040.20.
• Edition / version: Designation GOST 22727-88 (1988 edition, implemented 1989). Replaces GOST 22727-77.
• Number of pages: 14–15 pages depending on the publication copy (most bibliographic records list 14 pages).

Scope

The standard applies to ultrasonic inspection of sheet-rolled carbon and alloy steels (including composite/bi‑metal sheets) with thickness from 0.5 mm up to 200 mm. It standardizes procedures and parameter requirements for the echo, shadow, echo‑through and combined/mirror‑shadow ultrasonic methods used for detection and conditional sizing of discontinuities (e.g., delaminations, inclusions, laps, separations of plating layers). It is intended for production and acceptance control where ultrasonic methods are appropriate; it does not provide exhaustive rules for defect characterization (type/orientation).

Key topics and requirements

• Described ultrasonic inspection methods: echo methods, shadow (backscatter) methods, through‑transmission (echo-through), and combined/mirror‑shadow techniques for sheet material.
• Applicable thickness range: 0.5 mm to 200 mm.
• Target defects: delaminations, clusters of non‑metallic inclusions, laps, peeled or separated plating layers and similar discontinuities; procedures for determining conditional or equivalent sizes.
• Equipment and calibration: requirements for ultrasonic flaw detectors and transducers consistent with referenced parameters (examples in normative text), use of control specimens (flat or stepped) for sensitivity setting.
• Appendices: terminology (definitions) and method characteristic tables/diagrams; mandatory requirements for control samples described in annex(es).

Typical use and users

Primary users are non‑destructive testing (NDT) engineers, quality control laboratories and metallurgical plant inspection departments performing production or acceptance testing of sheet-rolled steel. Secondary users include certification bodies, contracting inspectors and design offices that specify inspection regimes for rolled sheet products. The standard is used to set testing procedures, prepare control samples and train NDT personnel in ultrasonic methods for sheet material.

Related standards

GOST 22727-88 replaces GOST 22727-77. The standard references and aligns with other ultrasonic and non‑destructive testing standards (examples cited in bibliographies include GOST 23049-84 and other regional GOSTs that define equipment parameters, technique codes and acceptance criteria). Users should consult the listed normative references in the standard for full cross‑referencing.

Keywords

GOST 22727-88; rolled sheet; sheet rolling; ultrasonic testing; ultrasonic inspection; echo method; shadow method; through‑transmission; control specimen; non‑destructive testing; NDT; steel sheet; Прокат листовой; ультразвуковой контроль.

FAQ

Q: What is this standard?

A: GOST 22727-88 is a Soviet/Interstate standard that defines ultrasonic test methods for sheet‑rolled steel (rolled sheet), including procedural requirements, equipment characteristics and use of control samples for detecting discontinuities in sheet products.

Q: What does it cover?

A: It covers specific ultrasonic techniques (echo, shadow, echo‑through/through‑transmission and combined mirror‑shadow), applicable thickness range (0.5–200 mm), defect types to be detected (delaminations, inclusions, laps, plating separations) and requirements for control specimens and calibration. It does not set out detailed rules for defect type/orientation classification beyond detection and sizing.

Q: Who typically uses it?

A: NDT engineers, metallurgical plant QC/inspection teams, third‑party inspection and certification bodies, and standards/technical documentation authors who need standardized ultrasonic procedures for sheet products.

Q: Is it current or superseded?

A: Major standards repositories list GOST 22727-88 as действующий (in force) in their catalogs; there are historical archival notes about administrative actions in the 1990s. Because databases differ, users who need legal/regulatory confirmation should check the current official national standards registry or the relevant standards body for the authoritative status.

Q: Is it part of a series?

A: GOST 22727-88 continues the GOST series for ultrasonic and NDT methods for rolled products and replaces the earlier GOST 22727-77; it also cross‑references related GOSTs that define equipment parameters and acceptance practices for ultrasonic testing.

Q: What are the key keywords?

A: Rolled sheet, ultrasonic testing, echo method, shadow method, through‑transmission, control specimen, non‑destructive testing, steel sheet, Прокат листовой.