ISO 5794-1:2022 PDF

Name: ISO 5794-1:2022 — Rubber compounding ingredients — Silica, precipitated, hydrated — Part 1: Non-rubber tests
SKU: ISO 5794-1:2022
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Rubber compounding ingredients — Silica, precipitated, hydrated — Part 1: Non-rubber tests

Название (английский):

ISO 5794-1:2022

Rubber compounding ingredients — Silica, precipitated, hydrated — Part 1: Non-rubber tests

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 30
Дата публикации:: 1 июня 2022 г.
Издание:: ISO IS 5794 edition 5 version 1
ICS:: 83.040.20

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Описание (английский):

This document specifies methods of test for characterizing precipitated hydrated silica for use as a rubber compounding ingredient. This document specifies the test formulation, mixing equipment, mixing procedure and methods of test for use in determining the physical properties of styrene-butadiene rubber compounded with precipitated hydrated silica.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 5794-1:2022 - Rubber compounding ingredients - Silica, precipitated, hydrated - Part 1: Non-rubber tests specifies laboratory methods to characterize precipitated hydrated silica used as a rubber compounding ingredient. The standard defines sampling, test formulation, mixing procedure (for styrene‑butadiene rubber formulations), methods to determine physical and chemical properties of silica, and the required contents of a test report. It is intended for quality control, specification and product development of precipitated silica for the rubber industry.

Key topics and technical requirements

Scope and sampling

Sampling is carried out in accordance with ISO 15528.

Test matrix (properties and test methods)

Silica content (ignited sample) - ISO 3262-19:2021
Colour - ISO 3262-1:2020
Residue on sieve (45 µm; powder and other forms) - ISO 3262-19:2021 / ISO 787-18
Volatile matter (loss on heating at 105 °C) - ISO 787-2
Density - ISO 787-10
Loss on ignition at 1 000 °C - ISO 3262-1:2020
pH of slurry - ISO 787-9
Water‑soluble matter - ISO 787-8
Total metals: copper, manganese, iron - normative Annexes A–C (acid digestion and AAS)
Specific surface area - Annexes D and E (including multipoint nitrogen adsorption / BET)
Granule size distribution - Annex F
CTAB surface area - Annex G

Annex H (informative) provides classification of silicas and typical properties.

Test report requirements (Clause 6) - must reference ISO 5794-1 and include identification, all measured results (14 specified items, including silica content, CTAB and BET surface areas, granule distribution, metal contents, etc.), deviations and unusual observations, and test date.

Safety - users must follow normal laboratory practice; some methods (e.g., HF digestion) require specific safety measures.

Applications and users

Who uses ISO 5794-1:2022:

Silica manufacturers - to certify product quality and provide standardized data to customers.

Rubber compounders and tire manufacturers - for selecting silica grades and ensuring consistent compounding performance with styrene‑butadiene rubber.

Independent testing and QA laboratories - to perform accredited analyses and produce comparable reports.

R&D teams - for material characterization during product development and troubleshooting.

Practical benefits:

Ensures consistent, comparable property data for supply chain specification.

Supports formulation decisions by providing standard surface area, particle size and impurity data relevant to reinforcement and cure behavior in rubber compounds.

Related standards

ISO 5794 series (other parts)

ISO 3262-19:2021 (precipitated silica test methods)

ISO 18852 (multipoint nitrogen surface area)

ISO 15528 (sampling)

ISO 787 series (general methods for pigments and extenders)

Keywords: ISO 5794-1:2022, precipitated hydrated silica, rubber compounding ingredients, CTAB surface area, BET surface area, granule size distribution, total metal content, silica characterization, styrene-butadiene rubber.

ISO 5794-1:2022 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 3262-19:2021

Extenders — Specifications and methods of test — Part 19: Precipitated silica

ISO 3262-1:2020

Extenders — Specifications and methods of test — Part 1: Introduction and general test methods

BS EN ISO 15528:2020

Paints, varnishes and raw materials for paints and varnishes. Sampling.

SIST EN ISO 787-18:1997

General methods of test for pigments and extenders - Part 18: Determination of residue on sieve - Mechanical…

SIST EN ISO 787-2:2021

General methods of test for pigments and extenders - Part 2: Determination of matter volatile at 105 °C (ISO…

SIST EN ISO 787-10:1997

General methods of test for pigments and extenders - Part 10: Determination of density - Pycnometer method (I…

SIST EN ISO 787-9:2019

General methods of test for pigments and extenders - Part 9: Determination of pH value of an aqueous suspensi…

SIST EN ISO 787-8:2001

General methods of test for pigments and extenders - Part 8: Determination of matter soluble in water - Cold…