ISO 9298:2017 PDF

Name: ISO 9298:2017 — Rubber compounding ingredients — Zinc oxide — Test methods
SKU: ISO 9298:2017
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Rubber compounding ingredients — Zinc oxide — Test methods

Название (английский):

ISO 9298:2017

Rubber compounding ingredients — Zinc oxide — Test methods

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 13
Дата публикации:: 8 марта 2017 г.
Издание:: ISO IS 9298 edition 2 version 1
ICS:: 83.040.20

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Описание (английский):

ISO 9298:2017 specifies the methods to be used for the evaluation of zinc oxide for use in the rubber industry. The analytical methods are applicable to all commercial zinc oxides, for example: - direct type (American process); - indirect type (French process); - other types produced by different chemical methods, i.e. precipitation and calcination. Zinc oxide can also be coated with organic materials, such as fatty acids, oil, wetting agents, etc., in order to improve the dispersion in rubber.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 9298:2017 - Rubber compounding ingredients - Zinc oxide - Test methods - specifies laboratory methods for evaluating zinc oxide used in the rubber industry. The standard applies to commercial zinc oxides (direct/American, indirect/French, precipitated, calcined) and to surface‑coated grades (fatty acids, oils, wetting agents). ISO 9298:2017 defines required tests, sampling reference, and reporting elements to ensure consistent quality control of zinc oxide raw materials.

Key topics and technical requirements

Scope and sampling: Sampling for dry zinc oxide powders is referenced to ISO 1124.

Mandatory test suite (Table 1):

Matter volatile at 105 °C (ISO 787‑2)
Water‑soluble matter (ISO 787‑8)
Acidity/alkalinity of aqueous extract (ISO 787‑4)
Residue on sieve (ISO 787‑7)
Nitrogen‑adsorption surface area (NSA, ISO 18852) - reported in m2/g
Zinc oxide content (Annex A) - EDTA titration procedure and standardization using high‑purity zinc
Trace metals (Annex B) - determination of lead, cadmium, copper and manganese by atomic absorption spectroscopy (specified wavelengths)
Acid‑insoluble matter (Annex C)

Surface‑coated materials: Evaluation of coated zinc oxides is performed without prior calcination or extraction so that coatings remain intact for meaningful dispersion assessment.

Classification and typical values: Annex D describes types used in rubber compounding and typical properties.

Test report requirements: The standard lists required report items (reference to ISO 9298, sample ID, ZnO content, metal contents, water‑solubles, acidity/alkalinity, sieve residue, surface area, acid‑insoluble matter, test dates, deviations).

Practical applications and users

Quality control labs in rubber and tire manufacturing: incoming inspection and batch release testing for zinc oxide raw materials.

Raw material suppliers: product specification, certification, and production control for different ZnO grades (direct/indirect/precipitated).

Materials testing laboratories: standardized methods for comparability of results and trace metal determination.

Product development and compounding engineers: selecting ZnO grades based on surface area, coatings and purity to optimize dispersion, vulcanization and performance.

Procurement and compliance teams: verify supplier claims, regulatory limits for heavy metals, and ensure consistent compounding ingredients.

Related standards

ISO 1124 - Sampling for dry powders (carbon black shipment sampling procedures referenced)

ISO 787 series - Test methods for pigments and extenders (volatile matter, acidity/alkalinity, water‑solubles, sieve residue)

ISO 18852 - Determination of multipoint nitrogen surface area (NSA / STSA)

ISO 9298:2017 provides a clear, referenced framework for zinc oxide test methods in rubber compounding, enabling reproducible quality control, regulatory compliance and informed material selection.

ISO 9298:2017 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

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SIST EN ISO 787-2:2021

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SIST EN ISO 787-8:2001

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SIST EN ISO 787-4:2018

General methods of test for pigments and extenders - Part 4: Determination of acidity or alkalinity of the aq…

SIST EN ISO 787-7:2009

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BS ISO 18852:2015

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