ISO 6101-3-2022 PDF

Full title and description

St ISO 6101-3-2022 — Rubber — Determination of metal content by atomic absorption spectrometry — Part 3: Determination of copper content. This international standard specifies an atomic absorption spectrometric procedure for measuring copper in raw rubber and rubber products, including guidance on test portion, sample preparation and detection limits for routine laboratory testing.

Abstract

This document specifies an atomic absorption spectrometric method for the determination of the copper content of rubbers. The method is applicable to raw rubber and rubber products having copper contents above about 1 ppm; lower concentrations can be measured by adjusting test portion mass or solution concentrations, and the standard‑additions technique can be used to lower the detection limit.

General information

• Status: Published.
• Publication date: 14 April 2022 (Edition 4, 2022-04).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 83.060 (Rubber).
• Edition / version: 4 (2022).
• Number of pages: 12.

Scope

Specifies an atomic absorption spectrometric method for determining copper content in raw rubber and rubber products. Intended for routine laboratory use where copper is present at concentrations typically above 1 ppm; for lower concentrations the standard describes how to adjust sample mass or solution concentration and how to apply the standard‑additions method to improve detection. The procedure covers sample preparation, measurement by AAS, calibration and basic reporting requirements appropriate to the stated detection range.

Key topics and requirements

• Atomic absorption spectrometric (AAS) measurement of copper in rubber matrices.
• Recommended sample preparation and test‑portion selection for raw and finished rubbers.
• Typical lower reporting limit ~1 ppm (with guidance for lowering this using larger test portions or the standard‑additions method).
• Calibration and quality‑control procedures appropriate to AAS (standards, blanks, check solutions and use of standard additions when necessary).
• Guidance on reagents, apparatus and safety/handling for digestion and analysis steps.
• Requirements for result expression and reporting to ensure reproducibility between laboratories.

Typical use and users

Laboratories performing chemical analysis of rubber and rubber products, quality control and R&D teams in rubber manufacturing, contract testing houses, and regulatory or compliance bodies assessing metal contamination in rubber materials. The standard is used to establish comparable copper determinations across production batches and supply chains.

Related standards

Part of the ISO 6101 family (determination of metal content in rubber by atomic absorption spectrometry). Related parts include ISO 6101-1 (zinc), ISO 6101-2 (lead, latest edition 2019) and ISO 6101-4 (manganese, 2022). The standard is maintained by ISO/TC 45/SC 2 (Rubber and rubber products technical committee/subcommittee).

Keywords

rubber; copper; atomic absorption spectrometry; AAS; metal content; test method; standard additions; detection limit; sample preparation; ISO 6101.

FAQ

Q: What is this standard?

A: ISO 6101-3:2022 is an international standard that specifies an atomic absorption spectrometric method for determining copper content in raw rubber and rubber products.

Q: What does it cover?

A: It covers sample selection and preparation, the AAS measurement procedure for copper, calibration and quality‑control measures, and guidance on detection limits (typical applicability above ~1 ppm with methods to measure lower concentrations).

Q: Who typically uses it?

A: Analytical laboratories, quality control and R&D teams in rubber manufacturing, third‑party testing bodies, and regulators or compliance groups that need comparable copper determinations in rubber materials.

Q: Is it current or superseded?

A: Current — ISO 6101-3:2022 is the published (4th) edition, which supersedes earlier editions (for example ISO 6101-3:2014 was withdrawn and replaced by the 2022 edition).

Q: Is it part of a series?

A: Yes — it is Part 3 of the ISO 6101 series (metal content determination in rubber by atomic absorption). Other parts address metals such as zinc (Part 1), lead (Part 2) and manganese (Part 4).

Q: What are the key keywords?

A: rubber, copper, atomic absorption spectrometry, AAS, metal determination, standard additions, detection limit, ISO 6101.