ISO 4659:2020 PDF

Name: ISO 4659:2020 — Styrene-butadiene rubber (carbon black or carbon black and oil masterbatches) — Evaluation procedure
SKU: ISO 4659:2020
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Styrene-butadiene rubber (carbon black or carbon black and oil masterbatches) — Evaluation procedure

Название (английский):

ISO 4659:2020

Styrene-butadiene rubber (carbon black or carbon black and oil masterbatches) — Evaluation procedure

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 18 августа 2020 г.
Издание:: ISO IS 4659 edition 7 version 1
ICS:: 83.060

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Описание (английский):

This document specifies: — the physical and chemical tests on raw rubbers; — the standard materials, standard test formulations, equipment, and processing methods for evaluating the vulcanization characteristics of styrene-butadiene rubber masterbatches with carbon black or with carbon black and oil.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 4659:2020 specifies an evaluation procedure for styrene‑butadiene rubber (SBR) masterbatches containing carbon black or carbon black plus oil. The standard defines the physical and chemical tests on raw rubbers, a standard test formulation, required equipment, and processing methods for assessing vulcanization characteristics and vulcanizate properties. It is intended for laboratory use in quality control, development and supplier evaluation of SBR masterbatches.

Key topics and requirements

Sampling and preparation: Follow ISO 1795 for lot sampling and laboratory sample preparation.

Raw‑rubber tests:

Mooney viscosity (ML(1+4) at 100 °C) per ISO 289‑1.
Volatile matter by ISO 248‑1 (hot‑mill/oven) or ISO 248‑2 (TGA).
Ash determination per ISO 247‑1 or ISO 247‑2.

Standard test formulation: A masterbatch-based recipe (masterbatch + zinc oxide, sulfur, stearic acid, TBBS accelerator) is provided to produce comparable test mixes. Carbon black (x) and oil (y) values refer to parts per 100 parts rubber in the masterbatch.

Mixing and compounding procedures:

Two mixing routes: Method A (laboratory mill) or Method B (single‑stage laboratory internal mixer - preferred).
Specified roll and mixer temperatures, batch masses, and mixing times to ensure reproducible dispersion.
Post‑mix storage/conditioning recommendations (2 h to 24 h) per ISO 23529.

Vulcanization evaluation:

Curemeter tests using an oscillating‑disc curemeter (ISO 6502‑2) or rotorless curemeter to measure cure curves and parameters (minimum/maximum torque, t'50, t'90) under specified conditions (e.g., die temperature 160 °C).
Warning on possible nitrosamine formation - follow lab safety practices.

Physical testing: Tensile stress‑strain properties of vulcanized test mixes per ISO 37.

Precision and reporting: Requirements for test precision and information to include in test reports.

Applications and users

ISO 4659:2020 is used for:

Quality control and acceptance testing of SBR masterbatches (carbon black or carbon black + oil).

R&D and formulation development to compare vulcanization behavior and mechanical performance.

Supplier qualification, production troubleshooting, and benchmarking of masterbatch performance. Primary users include rubber compounders, masterbatch manufacturers, tyre and rubber goods producers, independent testing laboratories, and materials engineers.

Related standards

Commonly used in conjunction with:

Keywords: ISO 4659:2020, styrene‑butadiene rubber, SBR masterbatch, carbon black, curemeter, Mooney viscosity, vulcanization characteristics, rubber testing.

ISO 4659:2020 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

ISO 1795:2007

Rubber, raw natural and raw synthetic — Sampling and further preparative procedures

ISO 289-1:2014

Rubber, unvulcanized — Determinations using a shearing-disc viscometer — Part 1: Determination of Mooney visc…

SIST EN ISO 24817:2017

Petroleum, petrochemical and natural gas industries - Composite repairs for pipework - Qualification and desi…

ISO 248:2005

Rubber, raw — Determination of volatile-matter content

BS ISO 2471:2008

Paper and board. Determination of opacity (paper backing). Diffuse reflectance method.

ISO 247:2006

Rubber — Determination of ash

ISO 23529:2016

Rubber — General procedures for preparing and conditioning test pieces for physical test methods

ISO 6502:2016

Rubber — Guide to the use of curemeters