ISO 18251-2:2023

Name: ISO 18251-2:2023 — Non-destructive testing — Infrared thermography — Part 2: Test method for integrated performance of system and equipment
SKU: ISO 18251-2:2023
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Non-destructive testing — Infrared thermography — Part 2: Test method for integrated performance of system and equipment

Название (английский):

ISO 18251-2:2023

Non-destructive testing — Infrared thermography — Part 2: Test method for integrated performance of system and equipment

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 21 февраля 2023 г.
Издание:: ISO IS 18251 edition 1 version 1
ICS:: 19.100

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Описание (английский):

This document specifies a test method for integrated performance parameters specified in ISO 18251-1 of an infrared (IR) imaging system and related equipment used in non-destructive testing (NDT). It also aims to assist the user in the selection of an appropriate system for a particular testing task.

Abstract

Overview

Key topics and technical requirements

Scope and environment
- Tests are performed indoors in a stable environment (typical range 20 °C to 25 °C, relative humidity 40–80%) and without shocks, vibrations or interfering radiation.
Required test equipment
- Blackbody simulator (high emissivity ≥ 0.95; stability and uniformity requirements, e.g. ≤ ±0.1 °C at ≤100 °C)
- Targets: common target, MRTD four‑shot target (metal, black matt paint, aspect ratio 7:1), MDTD disk target (diameter 100–300 mm, hole 20–40 mm)
- Optical table, positioning stage, infrared radiometer (range −20 °C to 500 °C; accuracy ±1 °C or ±1 %), optional collimator
Performance parameters and test methods
- NETD (Noise Equivalent Temperature Difference) - evaluates sensor noise and thermal sensitivity using blackbody sources and frame statistics.
- MRTD (Minimum Resolvable Temperature Difference) - assesses spatial plus thermal resolving ability using the four‑shot target and visual criteria.
- MDTD (Minimum Detectable Temperature Difference) - evaluates smallest detectable thermal contrast using disk targets.
- Field of View (FOV), IFOV and spatial resolution, minimum working distance, maximum temperature measurement range, temperature measurement uniformity, and operating temperature range.
Documentation
- Test specification, test report and test record requirements (including environment, instrument info, test data, signatures).

Applications and users

Who benefits:
- Manufacturers of thermal cameras and thermographic systems - for product verification and performance claims.
- NDT service providers and inspection engineers - to select and validate equipment for industrial inspections (electrical, mechanical, composites, process equipment).
- Test laboratories and calibration facilities - for repeatable, auditable performance testing and acceptance.
- Procurement and quality assurance teams - to define acceptance criteria and compare candidate systems.
Practical uses:
- Verifying camera sensitivity and resolution before in‑field inspections.
- Matching system capabilities to inspection tasks (detecting small delaminations, hot spots, or sub-surface defects).
- Ensuring traceable measurement procedures and consistent test reporting.

Related standards

ISO 18251-1 (Characteristics of system and equipment)
ISO 10878 (Infrared thermography - Vocabulary)
ISO 10880 (Infrared thermographic testing - General principles)

Keywords: ISO 18251-2:2023, infrared thermography, non-destructive testing, NDT, thermal camera performance, NETD, MRTD, MDTD, blackbody simulator, test method.

Технические детали

Технический комитет: ISO/TC 135/SC 8 - Thermographic testing
SKU: ISO 18251-2:2023

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Каталог

ISO 18251-1:2017

Действующий

Non-destructive testing — Infrared thermography — Part 1: Characteristics of system and equipment

Overview ISO 18251-1:2017 is an international standard developed by ISO for non-destructive testing (NDT) using infrared thermography. This standard specifically addresses the characteristics of infr…

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25 €