ISO 13226:2018 PDF

Name: ISO 13226:2018 — Rubber — Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers
SKU: ISO 13226:2018
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Rubber — Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers

Название (английский):

ISO 13226:2018

Rubber — Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 40
Дата публикации:: 8 июня 2018 г.
Издание:: ISO IS 13226 edition 4 version 1
ICS:: 83.060

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Описание (английский):

This document specifies requirements for vulcanized rubbers in sheet form for use as standards in characterizing the effect of test liquids and service fluids. This document is not designed to provide formulations of elastomeric-product compositions for actual service.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 13226:2018 - "Rubber - Standard reference elastomers (SREs) for characterizing the effect of liquids on vulcanized rubbers" specifies standardized vulcanized rubber test sheets used as reference materials when evaluating how test liquids and service fluids affect elastomers. The standard defines the composition, preparation, physical requirements and storage of these standard reference elastomers (SREs). It is intended for characterization and comparative testing (e.g., compatibility with fuels, oils, hydraulic fluids, coolants, refrigerants), not as formulations for end-use products.

Key topics and technical requirements

Scope and purpose

Defines SREs in sheet form for liquid-effect testing on vulcanized rubbers.
Not intended as service-grade compound recipes.

Material families covered

Annexes A–N include normative compositions and procedures for many rubbers: acrylic (ACM), acrylonitrile-butadiene (NBR variants), chlorobutyl (CIIR), chloroprene (CR), ethylene‑propylene (EPM), fluoropolymer (FKM), hydrogenated NBR (HNBR), natural rubber (NR), silicone (MQ/VMQ), etc.

Composition and homogeneity

Ingredients and proportions are specified in the annexes. Mixes must be homogeneous and use recognized rubber‑quality ingredients. Carbon black/silica may be adjusted between consignments to meet property limits (adjustments must be declared).

Preparation and curing

Mixing and vulcanization follow ISO 2393 and annex procedures (examples in Annex A include two‑roll mill mixing, press‑cure and post‑cure steps).

Test sheet geometry and quality

Sheets shall be 2 mm ± 0.2 mm thick, free from surface defects and internal voids.
Definitions: a “lot” is sheets from one batch vulcanized under the same conditions; a “pressing” is sheets made in one moulding operation.

Properties and testing

Sheets are characterized using referenced test methods (ISO 37 for tensile, ISO 48/ISO 7619‑1 for hardness, ISO 1817 for effect of liquids, ISO 2781 for density, ISO 23529 for conditioning). Specific property tolerances per material are given in the annexes (e.g., mass uptake in test liquid, tensile strength, elongation, hardness).

Designation and traceability

Designation format: ISO 13226 SRE-A/B (A = polymer code letters, B = compound descriptor; suffix X denotes additional tests).

Storage

Store in accordance with ISO 2230. Sheets must be retested or disposed after one year; if compliant, storage may be extended for a further year.

Practical applications and users

Who uses it:

Materials testing laboratories, rubber manufacturers, fluid formulators (fuels, lubricants, refrigerants), OEMs, certification bodies and R&D teams.

Typical uses:

Comparative compatibility testing of service fluids with vulcanized rubbers.
Generating reproducible data (mass/volume change, hardness, tensile changes) for fluid specifications and acceptance criteria.
Inter‑laboratory comparisons, quality control, and method validation for ISO 1817 liquid‑effect testing.

Related standards (referenced)

ISO 1817 - Determination of the effect of liquids

ISO 37 - Tensile stress‑strain properties

ISO 48 / ISO 7619‑1 - Hardness (IRHD / Shore)

ISO 2393 - Rubber test mixes - Preparation and mixing

ISO 2230 - Guidelines for storage

ISO 2781 - Density

ISO 23529 - Preparing and conditioning test pieces

Keywords: ISO 13226, standard reference elastomers, SRE, vulcanized rubbers, liquid compatibility testing, test sheets, rubber testing, ISO standards.

ISO 13226:2018 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards (referenced)

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