ISO 5902:2013

Name: ISO 5902:2013 — Alpine skis — Determination of elastic properties
SKU: ISO 5902:2013
Price: 25 EUR
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Alpine skis — Determination of elastic properties

Название (английский):

ISO 5902:2013

Alpine skis — Determination of elastic properties

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 12 марта 2013 г.
Издание:: ISO IS 5902 edition 2 version 1
ICS:: 97.220.20

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Описание (английский):

ISO 5902:2013 specifies laboratory measurement methods to determine the elastic properties of alpine skis. Its purpose is to calculate the resistance of defined parts of the ski to bending and torsion. The standard measurement procedures are recommended in order to ensure comparability between laboratory measurement data determined and published by ski manufacturers, institutions and others.

Abstract

Overview - ISO 5902:2013 (Alpine skis - Determination of elastic properties)

Key topics and technical requirements

Scope and purpose: Laboratory procedures to measure elastic properties of alpine skis to ensure comparability of published data.
Terms and definitions: Key metrics include the centre, shovel, rear, forebody and afterbody spring constants (c, in N/mm); spring constant balance (B); and torsional spring constant (cT, in N·m/°).
Apparatus: Detailed requirements for fixtures and instruments:
- Two adjustable low‑friction roller supports and a load applicator for centre bending.
- Clamping device (flat jaw + clamps) and load roller for shovel, rear, forebody and afterbody tests.
- Torsion head and angular scale for torsion tests.
- Measurement accuracies (e.g., load accuracy ±2 N, deflection ±0.5 mm, torsion ±0.5°).
Sampling and conditioning: Tests on finished skis; recommended test lengths 150, 180 or 200 cm (choose nearest). Condition skis at 23 °C ± 5 °C for at least 2 h before testing.
Test procedures:
- Centre spring constant (cM): quasi‑static load 300 N (preload 20 N), specific support spacing and clamp locations.
- Shovel and rear (cS, cR): typical test load 150 N (reduce to 100 N if deflection >50 mm), pre‑load 20 N.
- Spring constant balance (B): two bending tests with 50 N loads.
- Torsion (cT): quasi‑static torque (recommendation for very stiff skis), read torsion angle after 2–5 s.
Results and tolerances: Mean of three tests reported. Recommended tolerances for published data: ±10% for both spring and torsional constants.
Test report: Must reference ISO 5902 and include manufacturer, model, nominal length, registration number, test results and any deviations.

Applications and users

ISO 5902:2013 is used by:

Ski manufacturers for design validation, product data sheets and comparative specifications.
Testing laboratories and research institutions for reproducible measurement of ski bending and torsion behavior.
R&D and materials engineers for prototype evaluation and structural tuning.
Standards bodies and quality assurance teams who need consistent, repeatable elastic property measurements. Note: the standard ensures comparable mechanical data but does not provide a direct assessment of ski performance or user quality.

Related standards

ISO 6289 - Skis: Vocabulary (normative reference used by ISO 5902).
Prepared by ISO/TC 83 (Sports and recreational equipment), Subcommittee SC 4 (Snowsports equipment).

Технические детали

Технический комитет: ISO/TC 83/SC 4 - Snowsports equipment
SKU: ISO 5902:2013

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ISO 5902:2013

Abstract

Overview - ISO 5902:2013 (Alpine skis - Determination of elastic properties)

Похожие стандарты

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 6289:2003

Skis — Vocabulary

ISO 8212:1986

Soaps and detergents — Techniques of sampling during manufacture

ISO 20662:2020

Ships and marine technology — Hopper dredger supervisory and control systems

ISO 3021:2023

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ISO 3826-2:2008

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ISO/IEC 24730-1:2014

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ISO 8668-5:1992

Aircraft — Terminal junction systems — Part 5: Detail specification for type 3 system

ISO 7574-3:1985

Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and e…