ISO 2419-2024 PDF

Full title and description

St ISO 2419-2024 — Leather — Physical and mechanical tests — Specimen and test piece conditioning. This international standard specifies how leather specimens and test pieces shall be conditioned in controlled/standard atmospheres prior to physical and mechanical testing to ensure reproducible and comparable results across laboratories and test methods.

Abstract

Specifies the conditioning of leather for physical and mechanical testing in standard atmospheres. Applicable to all types of dry leather; the document defines a reference atmosphere, permitted alternative atmospheres, tolerances, basic conditioning procedures and reporting requirements to ensure consistent moisture content and dimensional stability before testing.

General information

• Status: Published.
• Publication date: 13 August 2024 (ISO publication, edition 5 released August 2024).
• Publisher: ISO — International Organization for Standardization.
• ICS / categories: 59.140.30 (Leather and furs).
• Edition / version: 5 (2024).
• Number of pages: 4.

Scope

Sets out the required conditioning atmospheres and procedures for leather specimens and test pieces used in physical and mechanical tests. The standard specifies a reference atmosphere and two alternative standard atmospheres, tolerances for temperature and relative humidity, recommendations for specimen support and air movement during conditioning, minimum conditioning times for dry leather, and reporting requirements for test results. It is intended to apply to all types of dry leather.

Key topics and requirements

• Reference standard atmosphere: 23.0 °C and 50.0 % relative humidity (RH).
• Alternative standard atmospheres (by agreement): specific 20.0 °C / 65.0 % RH and tropical 27.0 °C / 65.0 % RH.
• Tolerances: temperature ±2.0 °C; relative humidity ±5.0 %.
• Conditioning procedure: specimens must be exposed to the chosen standard atmosphere with free air access to all surfaces and air movement around them; support specimens so all faces are reached by the conditioning air.
• Minimum conditioning time: specified for dry leather (typical minimum 24 hours unless otherwise required by the specific test method or the leather’s moisture state).
• Testing and reporting: when required by the test method, testing shall be carried out in the same atmosphere as conditioning; test reports must record the climate used, any alternatives or deviations, and reference ISO 2419:2024.

Typical use and users

Used by leather testing laboratories, quality control departments in tanneries and manufacturers of leather goods, test houses, research institutions, and standards bodies. It is referenced by test methods for tensile strength, tear, abrasion, flexing and other physical/mechanical tests to ensure test specimens are in a defined moisture/dimensional state before measurement.

Related standards

Commonly used alongside other leather physical test standards such as ISO 3376 (Determination of tensile strength and percentage elongation) and the EN ISO implementation of ISO 2419 (EN ISO 2419:2024). Conditioning rules in ISO 2419 are harmonized with related standards that specify particular test procedures so results are comparable.

Keywords

Leather conditioning, standard atmosphere, specimen conditioning, physical tests, mechanical tests, relative humidity, temperature, IULTCS, specimen preparation.

FAQ

Q: What is this standard?

A: ISO 2419:2024 is an international standard that defines how leather specimens and test pieces must be conditioned in controlled atmospheres prior to physical and mechanical testing to ensure reproducible and comparable test results.

Q: What does it cover?

A: It covers the reference and alternative standard atmospheres (temperature and relative humidity), tolerances, basic conditioning procedures (supporting specimens, air movement), minimum conditioning times for dry leather, and the information to include in test reports.

Q: Who typically uses it?

A: Leather testing laboratories, tanneries, manufacturers of leather products, conformity assessment bodies, and standards committees use ISO 2419 to prepare specimens consistently for tests such as tensile, tear, abrasion and flexing.

Q: Is it current or superseded?

A: Current — ISO 2419:2024 (5th edition) is published and replaces the previous edition (ISO 2419:2012). The 2024 edition is the active, published version.

Q: Is it part of a series?

A: Yes — it is part of the suite of ISO leather physical and mechanical test standards (same ICS 59.140.30) and is referenced by individual test method standards (for example ISO 3376 for tensile testing) to define specimen conditioning prior to testing.

Q: What are the key keywords?

A: Leather, conditioning, standard atmosphere, relative humidity, temperature, specimen preparation, physical tests, mechanical tests.