SIST EN ISO 21254-1:2025 PDF

Name: SIST EN ISO 21254-1:2025 — Lasers and laser-related equipment - Test methods for laser-induced damage threshold - Part 1: Definitions and general principles (ISO 21254-1:2025)
SKU: SIST EN ISO 21254-1:2025
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Lasers and laser-related equipment - Test methods for laser-induced damage threshold - Part 1: Definitions and general principles (ISO 21254-1:2025)

Название (английский):

SIST EN ISO 21254-1:2025

Lasers and laser-related equipment - Test methods for laser-induced damage threshold - Part 1: Definitions and general principles (ISO 21254-1:2025)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 41
Дата публикации:: 25 сентября 2025 г.
Издание:: ISO 21254-1:2025
ICS:: 31.260

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Описание (английский):

This document defines terms used in conjunction with, and the general principles of, test methods for determining the laser-induced damage threshold and for the assurance of optical laser components subjected to laser radiation.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты SIST

Overview

EN ISO 21254-1:2025 - "Lasers and laser-related equipment - Test methods for laser‑induced damage threshold - Part 1: Definitions and general principles" - establishes the terminology and foundational principles used for measuring and assuring the laser‑induced damage threshold (LIDT) of optical components. Published by CEN and aligned with ISO 21254-1:2025, this Part 1 document replaces the 2011 edition and defines units, damage criteria, general testing concepts, and reporting requirements that underpin practical LIDT test methods.

Key topics and requirements

The standard focuses on clear, reproducible definitions and general principles to be applied across LIDT testing:

Terms and definitions used in LIDT testing, symbols and units (fluence, irradiance, linear power density, etc.).

Units of laser irradiation and how LIDT and related units are expressed and interpreted.

Damage criteria and thresholds, including classical and functional definitions of laser‑induced damage and failure modes (classical criterion, functional LIDT/F‑LIDT).

Test techniques and interrogation methods, such as 1‑on‑1, S‑on‑1, functional R(S)‑on‑1, raster scans, acceptance “pass‑fail” tests, and fatigue/conditioning concepts.

Test parameters, sampling and specimen preparation - what to sample, how to prepare specimens and select test conditions.

Apparatus and procedure essentials - laser source, attenuators, beam delivery and focusing systems, specimen holders, damage detection/inspection, and beam diagnostics.

Accuracy and uncertainty considerations, especially for peak irradiation levels and related statistical measures.

Test reporting requirements and normative usage notes to ensure consistent documentation.

Practical applications

EN ISO 21254-1:2025 provides the common language and baseline principles used whenever an organization needs to determine or claim the damage resistance of optics exposed to laser radiation. Typical applications include:

Qualification and quality assurance of optical components and coatings for high‑power lasers.

Development and verification of laser systems (industrial, medical, scientific, defense).

Establishing procurement specifications and acceptance tests for suppliers.

Research laboratories and test houses that perform standardized LIDT measurements and comparative testing.

Related standards

EN ISO 21254-1:2025 is Part 1 of the ISO 21254 series; other parts of the series address specific test methods and application‑specific procedures. Users should consult the broader ISO 21254 series and relevant national/sector standards for complete test method details.

Keywords: EN ISO 21254-1:2025, laser-induced damage threshold, LIDT, laser damage testing, optical components, photonics, optoelectronics, test methods, CEN.

SIST EN ISO 21254-1:2025 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications

Who should use this standard

Related standards

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