ISO 16249:2013 PDF

Name: ISO 16249:2013 — Springs — Symbols
SKU: ISO 16249:2013
Price: 25 EUR
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Springs — Symbols

Название (английский):

ISO 16249:2013

Springs — Symbols

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 21
Дата публикации:: 9 апреля 2013 г.
Издание:: ISO IS 16249 edition 1 version 1
ICS:: 01.100.20

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Описание (английский):

ISO 16249:2013 specifies specifies general principles for the creation of symbols of physical quantities, coefficients, and parameters for metal springs. It specifies the presentation of basic characters, subscripts, and application symbols for use in the field of helical compression springs, helical extension springs, helical torsion springs, flat springs, and leaf springs with attention to technical product documentation, especially for describing and ordering.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview - What ISO 16249:2013 covers

ISO 16249:2013, "Springs - Symbols," defines the general principles for creating and presenting symbols used to describe physical quantities, coefficients, and parameters of metal springs. It standardizes basic characters, subscripts, and application symbols for use across helical compression springs, helical extension springs, helical torsion springs, flat springs, and leaf springs. The standard is intended to improve clarity in technical product documentation, specification, testing, and ordering.

Key technical topics and requirements

Composition of spring symbols: Symbols are formed from a basic character (Latin or Greek letter) possibly followed by one or two subscripts; up to two sets of subscripts are allowed and are separated by a comma without space.

Character sets and style:

Permitted characters: upper/lower-case Latin and Greek letters and Arabic digits (with some letters excluded to avoid confusion).
Italic vs roman typeface: variables and subscripts representing physical quantities are italic; other subscripts and Arabic-number subscripts are roman (with rules for running numbers).

Conventions for letter choice:

Latin letters typically represent measured quantities (length, diameter, load); Greek letters are often used for calculated quantities (stress, deflection).
Upper case letters describe whole-spring properties; lower case letters describe material or partial dimensions.

Subscript rules:

Subscripts should be as short as possible (1–3 characters), derived from English terms, and use case consistently (single-character subscripts normally upper case; multi-character subscripts normally lower case).

Creation of new symbols: New symbols must follow the stated composition rules and drawing on English-based designations and established practice.

Application symbol sets: The standard provides lists and examples of application symbols for each spring type (compression, extension, torsion, flat, leaf), including common parameters such as D (mean coil diameter), d (wire diameter), F (spring load), L0 (free length), s (deflection), τ (torsional stress), σ (bending stress), E (modulus of elasticity), and G (modulus of rigidity).

Practical applications - who uses ISO 16249

Design and mechanical engineers - to document spring dimensions, loads, stresses, and performance unambiguously.

Technical writers and CAD/drawing specialists - to ensure consistent symbol usage in drawings and specifications.

Manufacturers and suppliers - to standardize ordering, testing criteria, and acceptance tolerances.

Quality, testing, and procurement teams - to specify test points, run-out, maximum/minimum conditions, and acceptance criteria.

Standards committees and educators - for teaching and extending symbol conventions.

Related standards

ISO 26909 - Springs: Vocabulary

ISO 80000-1 and ISO 80000-4 - Quantities and units (general and mechanics)

Using ISO 16249 helps eliminate ambiguity in spring documentation, facilitates international communication, and supports consistent specification, testing, and procurement of spring components.

ISO 16249:2013 PDF

Abstract

Похожие стандарты

Overview - What ISO 16249:2013 covers

Key technical topics and requirements

Practical applications - who uses ISO 16249

Related standards

Технические детали

SIST EN ISO 26909:2010

Springs - Vocabulary (ISO 26909:2009)

SIST EN ISO 80000-11:2020/A1:2026

Quantities and units - Part 11: Characteristic numbers - Amendment 1 (ISO 80000-11:2019/Amd 1:2025)

SIST EN ISO 80000-4:2019/A1:2025

Quantities and units - Part 4: Mechanics - Amendment 1 (ISO 80000-4:2019/Amd 1:2025)