ISO 8307-2018 PDF

Full title and description

Flexible cellular polymeric materials — Determination of resilience by ball rebound. This International Standard specifies a laboratory test method that measures the resilience (rebound) of flexible cellular polymeric materials by dropping a calibrated steel ball onto a conditioned specimen and measuring the rebound height.

Abstract

The standard defines the apparatus, specimen preparation and conditioning, test procedure, measurement and reporting required to determine resilience by the ball-rebound method for flexible cellular polymeric materials (foam). The method produces a rebound (resilience) value used for material comparison, quality control and specification purposes.

General information

• Status: Published (confirmed).
• Publication date: July 2018 (published 2018-07; effective/publication mid-July 2018).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 83.100 (Cellular materials).
• Edition / version: Edition 3 (ISO 8307:2018).
• Number of pages: 7.

Scope

ISO 8307:2018 specifies a single test method — the ball-rebound method — for determining the resilience of flexible cellular polymeric materials. It covers apparatus (including a diagrammatic arrangement), specimen dimensions and conditioning, test procedure (drop of a steel ball and measurement of rebound height), calculation and reporting of resilience results under specified environmental conditions.

Key topics and requirements

• Definition of resilience by ball rebound and its intended interpretation (comparison and quality control).
• Required test apparatus and diagrammatic arrangement for dropping and guiding the steel ball.
• Specimen preparation, selection of test locations and conditioning (temperature and humidity) before testing.
• Test procedure: drop height, number of drops, timing, measurement of rebound height and handling of outliers.
• Calculation and reporting of resilience (rebound) values and test conditions to ensure reproducibility.
• Notes on limitations and material types for which the method is applicable.

Typical use and users

Used by materials test laboratories, foam manufacturers, product designers and quality/inspection teams for footwear, upholstery, bedding, automotive seating, packaging and other applications where foam resilience (springiness/rebound) affects product performance. The method is applied for production control, incoming inspection and comparative specification testing.

Related standards

ISO 8307 sits within the ISO/TC 45/SC 4 portfolio for cellular materials. Related or commonly referenced standards for flexible cellular polymeric materials include standards for hardness, compression, compression set, stress–strain in compression and accelerated ageing (examples: ISO 2439, ISO 1856, ISO 3386 and ISO 2440 and other ICS 83.100 documents) which are used alongside ISO 8307 for comprehensive foam characterization.

Keywords

flexible cellular polymeric materials; foam; resilience; rebound; ball-rebound method; ball rebound; test method; ISO/TC 45/SC 4; conditioning; material testing.

FAQ

Q: What is this standard?

A: ISO 8307:2018 is an International Standard that specifies a laboratory test method (ball rebound) for determining the resilience of flexible cellular polymeric materials (foam).

Q: What does it cover?

A: It covers apparatus, specimen preparation and conditioning, the drop-and-rebound test procedure, measurement, calculation and the reporting of resilience results for flexible cellular polymeric materials.

Q: Who typically uses it?

A: Test laboratories, manufacturers and quality/engineering teams involved in foam production and product design (e.g., footwear, bedding, upholstery, automotive interiors) use the method for specification, comparison and quality control.

Q: Is it current or superseded?

A: ISO 8307:2018 is the current edition (Edition 3, published July 2018). The standard was confirmed in ISO’s review cycle and remains the active version (the 2007 and earlier editions were superseded by the 2018 edition).

Q: Is it part of a series?

A: It is part of the body of ISO standards addressing testing of cellular polymeric materials (ICS 83.100) and is commonly used together with other ISO test methods for foam properties (hardness, compression, compression set, stress–strain, ageing, etc.).

Q: What are the key keywords?

A: Resilience, ball rebound, foam, flexible cellular polymeric materials, rebound resilience, test method, specimen conditioning.