GOST R ISO 148-1-2013 PDF

Full title and description

GOST R ISO 148-1-2013 — National Standard of the Russian Federation. Metallic materials — Charpy pendulum impact test — Part 1: Test method. This GOST R adoption is identical to the referenced ISO document and specifies the standardised procedure for Charpy V‑notch and U‑notch pendulum impact testing to determine absorbed impact energy of metallic materials.

Abstract

GOST R ISO 148-1-2013 sets out the specimen types, notch geometries, machine and striker requirements, test temperatures and conditioning, test execution and reporting rules for Charpy pendulum impact tests on metallic materials. It is intended to ensure repeatable measurement of absorbed energy and to reference machine verification procedures and related parts of the ISO series for calibration and specimen preparation.

General information

• Status: National standard of the Russian Federation (adoption of an ISO technical text).
• Publication date: Approved by order of the Federal Agency on Technical Regulation and Metrology on 22 November 2013; date of introduction into force 1 October 2014.
• Publisher: Federal Agency on Technical Regulation and Metrology (Rosstandart) — national adoption of ISO text (GOST R designation).
• ICS / categories: 77.040.10 (mechanical testing of metals) — Charpy impact testing.
• Edition / version: GOST R ISO 148-1-2013 (text identical to ISO 148-1:2009 as adopted nationally in 2013).
• Number of pages: Typically 26 pages in the ISO 148-1:2009 edition adopted by this GOST R (national pagination may vary slightly in the Russian publication).

Scope

This standard applies to Charpy pendulum impact testing of metallic materials using standard V‑notch and U‑notch specimens. It defines specimen dimensions and notch details, machine and striker characteristics, test temperatures and conditioning procedures, test conduct (placement, striking direction and alignment), energy measurement and reporting. It does not cover instrumented impact testing (which is specified in a separate ISO standard) and refers to companion parts for machine verification and specimen preparation.

Key topics and requirements

• Specimen geometry and notch types: standard V‑notch and U‑notch dimensions and tolerances for Charpy test pieces.
• Machine and striker requirements: pendulum energy ratings, striker radii (for V and U notches), anvil/support arrangement and protective casing.
• Test temperatures and conditioning: default ambient testing range and procedures for heating/cooling and transfer time limits for temperature-controlled tests.
• Test execution: specimen positioning, strike location (opposite side to the notch), alignment tolerances and permissible absorbed energy relative to machine capacity.
• Energy measurement and reporting: correction for machine losses, treatment of invalid tests, and required test record information (machine ID, specimen ID, temperature, absorbed energy, classification of fracture appearance).
• References to machine verification and specimen preparation: normative linkage to verification procedures (ISO 148‑2, ISO 148‑3) and guidance on uncertainty assessment.
• Requirements for handling special cases: blocked/jammed specimens, post-fracture inspection rules, and criteria for declaring results invalid.

Typical use and users

Used by metallurgical and mechanical testing laboratories, QA/QC departments in manufacturing (steel, alloys, forgings, castings), research and development groups assessing material toughness, certification bodies, and calibration laboratories that verify Charpy pendulum impact machines. It is applied where standardised toughness data (absorbed energy) are needed for material specification, acceptance testing, heat‑treatment verification and failure analysis.

Related standards

Key related and companion documents include ISO 148‑2 (verification of Charpy pendulum impact testing machines), ISO 148‑3 (preparation and characterization of Charpy V‑notch test pieces for indirect verification), ISO 14556 (instrumented impact testing), common regional/adopted versions (EN ISO 148‑1) and widely used alternative test methods (for example ASTM E23). National GOST documents for specimen preparation or notch cutting and machine performance/verification may also be used in conjunction.

Keywords

Charpy, pendulum, impact test, V‑notch, U‑notch, absorbed energy, toughness, fracture, verification, specimen conditioning, Rosstandart, GOST R

FAQ

Q: What is this standard?

A: GOST R ISO 148-1-2013 is the Russian national adoption of the ISO Charpy pendulum impact test method (Part 1: Test method). It specifies how to conduct Charpy V‑notch and U‑notch impact tests to measure absorbed energy of metallic materials.

Q: What does it cover?

A: It covers specimen geometry, notch details, machine and striker characteristics, test temperatures and conditioning, test execution and reporting rules for the Charpy pendulum impact (non‑instrumented) test. It excludes instrumented impact testing, which is covered by a different ISO standard.

Q: Who typically uses it?

A: Testing and calibration laboratories, metallurgists, manufacturers and quality departments in industries working with metals (steel, aluminum, alloys), R&D groups, inspection and certification bodies — essentially anyone needing standardised impact toughness data.

Q: Is it current or superseded?

A: GOST R ISO 148-1-2013 adopts the ISO 148-1:2009 text. The ISO series was later updated (ISO 148-1 was revised at the international level in 2016). For up‑to‑date national applicability or any later Russian revisions it is recommended to confirm the current status with Rosstandart or the national standards catalogue if you need the most recent edition for regulatory or procurement use.

Q: Is it part of a series?

A: Yes. It is Part 1 of the ISO 148 series. Companion parts include ISO 148‑2 (machine verification) and ISO 148‑3 (specimen preparation and characterization for verification). The series works together to define test method, equipment verification and reference specimen procedures.

Q: What are the key keywords?

A: Charpy, impact test, pendulum, V‑notch, U‑notch, absorbed energy, toughness, verification, specimen conditioning.