ISO 10195-2018 PDF

Full title and description

ISO 10195:2018 — Leather — Chemical determination of chromium(VI) content in leather — Thermal pre‑ageing of leather and determination of hexavalent chromium. This standard specifies a controlled thermal pre‑ageing procedure and associated sample preparation intended to provide an indication of the tendency of chromium‑tanned leather to form hexavalent chromium (Cr(VI)), followed by chemical determination of Cr(VI) using the established ISO 17075 methods.

Abstract

ISO 10195:2018 defines a short, reproducible thermal pre‑ageing treatment for leather and the subsequent analytical workflow to determine hexavalent chromium content. The procedure is an indicator test (not a simulation of real use) applicable to chromium‑tanned leathers; it describes pre‑ageing conditions, specimen preparation, required apparatus and how to perform Cr(VI) analysis using ISO 17075‑1 (colorimetric) or ISO 17075‑2 (chromatographic) methods. The document is concise and intended for use in quality control, laboratory screening and comparative assessments of Cr(VI) formation tendency after thermal stress.

General information

• Status: Published / Active international standard
• Publication date: 29 May 2018
• Publisher: ISO (International Organization for Standardization)
• ICS / categories: 59.140.30 — Leather and furs
• Edition / version: First edition (2018)
• Number of pages: 5

Scope

This standard specifies a thermal pre‑ageing procedure to obtain indications of the tendency of chromium‑tanned leather to form hexavalent chromium under defined thermal stress, and the determination of hexavalent chromium by the chemical methods given in ISO 17075‑1 or ISO 17075‑2. It is applicable to all types of chromium‑tanned leather. The procedure is intended as an indicator test and does not claim to simulate real production or use conditions.

Key topics and requirements

• Purpose: provide an objective, repeatable pre‑ageing step to reveal potential Cr(VI) formation tendencies in chromium‑tanned leather.
• Pre‑ageing conditions: two defined regimes — (60 ± 2) °C with relative humidity effectively < 20 % (general purpose) and (80 ± 2) °C with relative humidity effectively < 10 % (for critical manufacturing/transport exposures).
• Duration and equipment: (24 ± 1) h in a static (natural convection, non‑forced‑air) oven; oven temperature tolerance ±2 °C; monitoring of conditions recommended.
• Sample preparation: sampling according to ISO 2418; specimen preparation as per ISO 4044 where applicable; test portion mass (2.0 ± 0.1) g; cut into small pieces (typically 3–5 mm) and placed in a 250 ml Erlenmeyer flask for extraction/analysis.
• Analytical methods: determination of hexavalent chromium immediately after cooling using ISO 17075‑1 (colorimetric) or ISO 17075‑2 (chromatographic) procedures; follow the chosen method for calculation, reporting limits and expression of results.
• Reporting requirements: reference to ISO 10195, description of the leather (type, origin, tanning), sampling details, chosen pre‑ageing regime, measured Cr(VI) values, analytical method used and any deviations from the standard procedure.
• Annexes and supplementary material: informative annexes include inter‑laboratory accuracy data and observations on natural ageing (used for interpretation and context rather than prescriptive tests).

Typical use and users

Used by tanneries, leather manufacturers, product and quality control laboratories, testing and certification bodies, product specifiers (footwear, apparel, upholstery, automotive interiors) and regulatory authorities. Typical uses include internal screening for Cr(VI) formation tendency after thermal stress, comparative assessments between leather batches or processes, and inclusion as part of a laboratory test program related to material safety and compliance.

Related standards

Commonly used together with ISO 17075‑1 and ISO 17075‑2 (chemical determination of hexavalent chromium in leather — colorimetric and chromatographic methods), ISO 2418 (sampling location for leather tests), ISO 4044 (preparation of chemical test samples) and other leather testing standards and national/regional regulations addressing chromium(VI) content and consumer safety.

Keywords

ISO 10195, chromium(VI), hexavalent chromium, Cr(VI), thermal pre‑ageing, leather testing, chromium‑tanned leather, ISO 17075, sample preparation, quality control.

FAQ

Q: What is this standard?

A: ISO 10195:2018 is an international standard that specifies a short thermal pre‑ageing procedure for chromium‑tanned leather and the subsequent chemical determination of hexavalent chromium (Cr(VI)) using ISO 17075 methods. It gives a reproducible indicator test for tendency to form Cr(VI) under specified thermal stress.

Q: What does it cover?

A: It covers a controlled thermal pre‑ageing treatment (temperatures, humidity control, duration, oven type), specimen preparation and the requirement to analyse Cr(VI) immediately after pre‑ageing by ISO 17075‑1 or ISO 17075‑2. It specifies reporting items and provides informative annex material on method performance and natural ageing observations.

Q: Who typically uses it?

A: Tanneries and leather goods manufacturers, independent testing and quality control laboratories, product specifiers in footwear, apparel, upholstery and automotive industries, and regulatory or conformity assessment bodies concerned with chromium(VI) risks in leather.

Q: Is it current or superseded?

A: As published in May 2018, ISO 10195:2018 is the edition released in 2018. Users should check with official standards bodies or the ISO catalogue for any later confirmations, amendments or superseding editions if the most up‑to‑date status is required.

Q: Is it part of a series?

A: ISO 10195 is a standalone document focused on thermal pre‑ageing and Cr(VI) testing, but it is intended to be used together with the ISO 17075 series (methods for chemical determination of hexavalent chromium) and with related leather testing standards such as ISO 2418 and ISO 4044.

Q: What are the key keywords?

A: chromium(VI), hexavalent chromium, Cr(VI), thermal pre‑ageing, leather testing, chromium‑tanned leather, ISO 17075, sample preparation, quality control.