ISO 24453:2008

Overview

ISO 24453:2008 - Rubber - Acquisition and presentation of comparable single-point data defines how to obtain and present comparable single-value results for properties of rubber compounds. The standard specifies one test method and one experimental value per property (with exceptions where multiple values under different conditions are required). Its primary purpose is to enable different suppliers and laboratories to produce consistent material specification sheets so that properties measured under the same conditions are directly comparable.

Key topics and technical requirements

• Single-point data definition: characterizes a rubber material by tests that yield single-value results representative of key performance aspects.
• Test piece preparation: follow ISO 2393 principles; report mixing, moulding equipment and conditions; use processing conditions representative of production.
• Conditioning:
  • Time between mixing and moulding: 24 hours to 1 week.
  • Time between moulding and conditioning: 16 hours to 4 weeks.
  • Standard laboratory conditions: (23 ± 2) °C and 50 % RH (note alternative 27 ± 2 °C needs adjustment).
• Processability properties: selection of methods and units (e.g., Mooney viscosity and scorch - ISO 289 series; cure characteristics - ISO 6502; rapid plasticity - ISO 2007).
• Mechanical, viscoelastic and environmental tests: includes hardness (ISO 48), tensile and elongation (ISO 37), tear (ISO 34‑1), density (ISO 2781), compression/tension set (ISO 815‑1, ISO 2285), resilience (ISO 4662), ageing (ISO 188), fluid resistance (ISO 1817), ozone resistance (ISO 1431‑1), abrasion (ISO 4649) and low temperature tests (ISO 812 / ISO 1432).
• Presentation of results: present values (mean/median) with test conditions, number of test pieces per relevant test standard, material identification and processing/conditioning details. Prefer averaging across blended batches or multiple batches.

Practical applications and users

Who benefits:

• Rubber compound manufacturers - create consistent material data sheets for customers.
• Test laboratories and QC teams - standardize test methods and reporting.
• OEMs and designers - compare elastomer options using directly comparable data.
• Procurement/spec writers - specify material requirements unambiguously across suppliers.
• R&D and process engineers - use processability and cure data for tooling, mixing and molding decisions.

Typical uses:

• Producing supplier material specification sheets.
• Comparing candidate rubbers from multiple suppliers.
• Establishing quality acceptance criteria and procurement specifications.
• Informing processing settings (cure times, temperatures) and end‑use suitability.

Related standards

ISO 24453:2008 references many test standards that should be used in combination, including (but not limited to) ISO 289‑1/2, ISO 6502, ISO 37, ISO 48, ISO 2393, ISO 23529, ISO 1817 and ISO 188. Use these normative references to implement specific test methods and conditions.

Keywords: ISO 24453:2008, rubber single-point data, rubber testing, material specification sheets, processability, conditioning, test methods, rubber compound properties.