SIST EN ISO 21920-2:2022

Name: SIST EN ISO 21920-2:2022 — Geometrical product specifications (GPS) - Surface texture: Profile - Part 2: Terms, definitions and surface texture parameters (ISO 21920-2:2021, Corrected version 2022-06)
SKU: SIST EN ISO 21920-2:2022
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Geometrical product specifications (GPS) - Surface texture: Profile - Part 2: Terms, definitions and surface texture parameters (ISO 21920-2:2021, Corrected version 2022-06)

Название (английский):

Geometrical product specifications (GPS) - Surface texture: Profile - Part 2: Terms, definitions and surface texture parameters (ISO 21920-2:2021, Corrected version 2022-06)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 87
Дата публикации:: 2 февраля 2022 г.
Издание:: ISO 21920-2:2021
ICS:: 01.040.17

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Описание (английский):

This document specifies terms, definitions and parameters for the determination of surface texture by profile methods. NOTE 1 The main changes to previous ISO profile documents are described in Annex I. NOTE 2 An overview of profile and areal standards in the GPS matrix model is given in Annex J. NOTE 3 The relation of this document to the GPS matrix model is given in Annex K.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 21920-2:2022 - Geometrical product specifications (GPS) - Surface texture: Profile - Part 2 - specifies the terms, definitions and surface texture parameters used when determining surface texture by profile methods. Adopted by CEN from ISO 21920-2:2021 (corrected 2022-06), this standard replaces several earlier profile standards and defines a consistent vocabulary and parameter set for profile-based surface texture measurement.

Key Topics

Terms and definitions: A unified vocabulary for general, geometrical parameter and feature-related terms used in profile surface texture analysis.

Field parameters: Categorized parameter types and their intent, including:

Height parameters: arithmetic mean height, root mean square height, skewness, kurtosis, total height and maximum height per section.
Spatial parameters: autocorrelation length, dominant spatial wavelength.
Hybrid parameters: RMS gradient, mean absolute gradient, developed length and developed length ratio.
Material ratio functions and parameters: material ratio curve, related parameters for stratified surfaces, and volume parameters.

Feature parameters: Parameters based on peak/pit heights, profile element spacing and heights, peak count and feature characterization.

Normative procedures and annexes: Guidance on derivatives, local curvature, material ratio curve determination, segmentation (crossing-the-line), feature characterization, and a specification analysis workflow.

Relation to the GPS matrix: Overviews and mapping of profile and areal standards to the GPS matrix model (Annexes J and K).

Supersession: Replaces EN ISO 12085, EN ISO 4287, EN ISO 13565-2 and -3.

Applications

EN ISO 21920-2:2022 is used by:

Metrology and quality engineers writing surface finish specifications and inspection plans.

Calibration and testing laboratories performing profile measurements and reporting surface texture parameters.

Manufacturers (automotive, aerospace, tooling, bearings, seals) for process control, acceptance testing and verification of functional surface requirements.

Standards bodies and technical committees aligning measurement vocabulary across areal and profile methods.

Practical uses include selecting appropriate profile parameters for functional performance assessment, defining measurement and reporting requirements, and ensuring consistent interpretation of surface texture results across suppliers and inspection labs.

Related standards

EN ISO 21920-1 (GPS matrix and areal/profile context - see GPS matrix model)

Superseded: EN ISO 12085, EN ISO 4287, EN ISO 13565-2 and EN ISO 13565-3

Other GPS profile and areal standards referenced in the GPS matrix (see Annexes J and K)

For specification writers and practitioners, EN ISO 21920-2:2022 provides the authoritative vocabulary and parameter definitions needed to specify, measure and interpret profile surface texture consistently.

SIST EN ISO 21920-2:2022

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related standards

Технические детали

ISO 21920-2:2021

Geometrical product specifications (GPS) — Surface texture: Profile — Part 2: Terms, definitions and surface…

ISO 12085:1996/Cor 1:1998

Geometrical Product Specifications (GPS) — Surface texture: Profile method — Motif parameters — Technical Cor…

ISO 4287:1997/Amd 1:2009

Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface t…

ISO 13565-2:1996/Cor 1:1998

Geometrical Product Specifications (GPS) — Surface texture: Profile method; Surfaces having stratified functi…

SIST EN ISO 21920-1:2022

Geometrical product specifications (GPS) - Surface texture: Profile - Part 1: Indication of surface texture (…

BS EN ISO 13565-3:2000

Geometric product specifications (GPS). Surface texture: Profile method. Surfaces having stratified functiona…