ISO 17450-2:2012

Name: ISO 17450-2:2012 — Geometrical product specifications (GPS) — General concepts — Part 2: Basic tenets, specifications, operators, uncertainties and ambiguities
SKU: ISO 17450-2:2012
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Geometrical product specifications (GPS) — General concepts — Part 2: Basic tenets, specifications, operators, uncertainties and ambiguities

Название (английский):

ISO 17450-2:2012

Geometrical product specifications (GPS) — General concepts — Part 2: Basic tenets, specifications, operators, uncertainties and ambiguities

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 18
Дата публикации:: 24 сентября 2012 г.
Издание:: ISO IS 17450 edition 1 version 1
ICS:: 17.040.01

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Описание (английский):

1 Scope This part of ISO 17450 defines terms related to specifications, operators (and operations) and uncertainties used in geometrical product specifications (GPS) standards. It presents the basic tenets of the GPS philosophy while discussing the impact of uncertainty on those tenets, and examines the processes of specification and verification as they apply to GPS.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 17450-2:2012 - part of the ISO Geometrical Product Specifications (GPS) family - defines the basic tenets, terminology and conceptual framework for specifying and verifying geometric requirements on products. It focuses on specification operations, specification operators, verification operations, and the effects of measurement uncertainty and ambiguity on specification and verification. The standard supports consistent interpretation of GPS requirements across design, manufacturing and inspection chains.

Key topics

Definitions and terminology: precise terms for operations, operators and uncertainty used throughout GPS standards (linked to ISO 14253-2, ISO 14660-1, ISO 14978, ISO 17450-1, ISO/IEC Guide 98-3 and VIM).

Specification operations: mathematical, geometrical or algorithmic operations that form parts of a GPS requirement (default, special, actual).

Specification operators: ordered sets of specification operations - can be complete (unambiguous) or incomplete (introducing ambiguity).

Verification operations: measurement methods that implement specification operations (including perfect, simplified, and actual verification).

Uncertainty and ambiguity: how method, implementation and description ambiguities impact GPS basic tenets and acceptance decisions.

Processes: structured specification process and verification process for applying GPS requirements in technical product documentation.

Informative annexes: concept diagram, drawing indications and relationship to the GPS matrix model (Annexes A–C).

Practical applications

ISO 17450-2 is intended for professionals who need clear, consistent geometric requirements and reliable verification of parts:

Design engineers defining geometric tolerances and functional requirements.

Quality/metrology engineers developing measurement and verification methods.

Manufacturing engineers interpreting specifications to select processes and controls.

Calibration and inspection labs estimating and reporting measurement uncertainty in line with GPS decisions.

Standards developers and technical committees aligning GPS documents and default rules.

Practical benefits:

Reduces ambiguity in drawings and specifications by clarifying default vs. special operators.

Helps choose appropriate verification methods and understand the additional uncertainty introduced by simplified implementations.

Supports consistent pass/fail decisions by linking specification intent, operators and uncertainty management.

Related standards

ISO 17450-1:2011 (GPS model)

ISO 14253-2:2011 (uncertainty guidance for GPS measurement and verification)

ISO 14660-1, ISO 14978, ISO/IEC Guide 98-3 (GUM), ISO/IEC Guide 99 (VIM)

ISO/TR 14638 (ISO/GPS Masterplan) - relationship to GPS matrix model

Keywords: ISO 17450-2, Geometrical Product Specifications, GPS, specification operator, specification operation, verification, measurement uncertainty, ambiguity, ISO/TC 213.

ISO 17450-2:2012

Abstract

Похожие стандарты

Overview

Key topics

Practical applications

Related standards

Технические детали

ISO 17450-1:2011

Geometrical product specifications (GPS) — General concepts — Part 1: Model for geometrical specification and…

ISO 14253-2:2011

Geometrical product specifications (GPS) — Inspection by measurement of workpieces and measuring equipment —…

BS EN ISO 14253-2:2011

Geometrical product specifications (GPS). Inspection by measurement of workpieces and measuring equipment. Gu…

ISO 14660-1:1999

Geometrical Product Specifications (GPS) — Geometrical features — Part 1: General terms and definitions

BS EN ISO 14978:2018

Geometrical product specifications (GPS). General concepts and requirements for GPS measuring equipment.

ISO/TR 14638:1995

Geometrical product specification (GPS) — Masterplan