ISO 4709:2017 PDF

Name: ISO 4709:2017 — Composition cork — Gasket material — Classification system, requirements, sampling, packaging and marking
SKU: ISO 4709:2017
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Composition cork — Gasket material — Classification system, requirements, sampling, packaging and marking

Название (английский):

ISO 4709:2017

Composition cork — Gasket material — Classification system, requirements, sampling, packaging and marking

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 3 октября 2017 г.
Издание:: ISO IS 4709 edition 3 version 1
ICS:: 21.140

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Описание (английский):

ISO 4709 gives a classification system for composition cork intended to be used as gaskets in the mechanical industry. It provides a means for specifying or describing the relevant properties. Since not all properties that contribute to gasket performance are included, the use of this system is limited to the selection of materials in accordance with specified requirements.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 4709:2017 defines a classification system for composition cork intended for use as gasket material in the mechanical industry. The standard provides a common language for specifying or describing key physical and mechanical properties of agglomerated cork gaskets (compressibility, oil and water resistance, etc.), together with requirements for sampling, packaging and marking. It is intended to help designers, suppliers and purchasers select materials that meet specified property ranges, but it does not cover every factor affecting gasket performance.

Key Topics and Requirements

Classification (line call-out): A six-digit code (e.g. ISO 4709 (220304)) where each numeral describes a characteristic:

1st numeral = raw material type (for cork products use 2).
2nd numeral = agglomerate type (composition cork, cork+elastomer, cork+cellular rubber, etc.).
3rd to 6th numerals = key basic characteristics such as compressibility, thickness increase in ASTM IRM 903 oil, mass increase in oil, and mass increase in water (each mapped to defined percentage ranges).

Supplementary characteristics: Optional suffix symbols (Table 1) for additional properties such as thickness increase ranges (E), tensile strength (M), binder durability (D) and flexibility (F), with referenced test methods.

Test methods and applicability: Normative and informative references include ISO 4708 and ISO 7322 for test procedures; Annex A lists applicable test methods by cork type.

Thickness tolerances: Specified tolerances for nominal thicknesses and different cork types (see Table 2).

Sampling: Test specimen selection and sampling guidance, with reference to ISO 2859-1 sampling schemes.

Packaging and marking: Requirements for moisture-resistant packaging and mandatory package marking (reference to ISO 4709, product designation, manufacturer identification and source).

Applications and Who Uses It

Designers and engineers specifying gasket materials for pumps, valves, engines and mechanical equipment.

Material suppliers to report product properties consistently.

Purchasing and quality teams for acceptance criteria and inspection.

Test laboratories conducting the referenced physical and mechanical tests.

Practical uses include material selection and specification during design, procurement of compliant composition cork gaskets, and quality control of incoming gasket materials.

Related Standards

ISO 4708 - Composition cork - Gasket material - Test methods (referenced for key tests)

ISO 7322 - Composition cork - Test methods (supplementary tests)

ISO 633 - Cork - Vocabulary

ISO 2859-1 - Sampling procedures for inspection by attributes

Keywords: ISO 4709, composition cork, gasket material, classification system, gasket requirements, sampling, packaging, marking, test methods, ISO 4708.

ISO 4709:2017 PDF

Abstract

Похожие стандарты

Overview

Key Topics and Requirements

Applications and Who Uses It

Related Standards

Технические детали

ISO 4709:2000

Composition cork — Gasket material — Classification system, requirements, sampling, packaging and marking

ISO 4708:2015

Composition cork — Gasket material — Test methods

ISO 7322:2000

Composition cork — Test methods

SIST ISO 2859-1:2003/Amd 1:2020

Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality lim…

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