IEC 61340-4-9-2024 PDF

Full title and description

St IEC 61340-4-9-2024 — Electrostatics - Part 4-9: Standard test methods for specific applications - Garments - Resistive characterization. This international standard defines procedures and measurement methods for assessing the electrical resistance characteristics of garments and garment components intended for electrostatic charge control and ESD protection in industrial and controlled-environment applications.

Abstract

IEC 61340-4-9:2024 (Edition 3.0) specifies standard test methods to measure electrical resistance and resistive behaviour of outer garments and garment elements used in static-control applications. It covers homogeneous conductive or dissipative garments and garments with surface-conductive or surface-dissipative components, and provides conditioning, test-voltage, personnel-ground-path and reporting requirements. The 2024 edition updates equipment safety references and several test and conditioning parameters to improve measurement consistency and alignment with current measurement-device standards.

General information

• Status: Published / Current
• Publication date: October 23, 2024
• Publisher: International Electrotechnical Commission (IEC)
• ICS / categories: 17.200.99; 29.020
• Edition / version: Edition 3.0 (2024)
• Number of pages: 46

Scope

This part of IEC 61340 provides test methods for measuring the electrical resistance of garments used for static-control and ESD-protection applications. The methods apply to outer garments that are homogeneously conductive or homogeneously dissipative, and to garments or garment elements that employ surface-conductive or surface-dissipative components. The standard notes limitations for materials with buried conductive layers (tests defined may not detect buried layers). The 2024 edition updates equipment safety requirements, extends personnel ground-path test voltage range, revises cleaning/conditioning cycles, removes a moderate-humidity test requirement, and replaces illustrative figures with generic drawings to clarify procedures.

Key topics and requirements

• Standardized resistance measurement methods for garments (point-to-point, across seams, panels, sleeves, and interconnected components).
• Personnel ground-path test procedures and specified test-voltage range for personnel-ground-path measurements.
• Requirements for instrument safety and performance referencing IEC 61010-1 and IEC 61010-2-030.
• Conditioning, cleaning and pre-test handling of garments (minimum cleaning/conditioning cycles and post-cleaning test protocol).
• Test environment and conditioning variables to improve repeatability (temperature/humidity conditioning where applicable; moderate-humidity requirement removed in this edition).
• Limitations and applicability notes (e.g., difficulty measuring buried conductive layers; tailoring guidance for non-homogenous products).
• Reporting requirements and recommended test record contents for compliance verification and product specification.

Typical use and users

IEC 61340-4-9:2024 is used by garment manufacturers, textile engineers and designers of ESD clothing, independent testing and calibration laboratories, quality assurance and compliance teams, procurement specialists specifying ESD garments, and ESD program managers in electronics manufacturing, cleanrooms, semiconductor and medical device production. It is intended both for product development and for acceptance/compliance testing during production and incoming inspection.

Related standards

Closely related documents include other parts of the IEC 61340 series (for example IEC 61340-2-3 on resistance/resistivity test methods and IEC 61340-5-1 on protection of electronic devices from electrostatic phenomena). The 2024 edition of 61340-4-9 also references equipment safety standards IEC 61010-1 and IEC 61010-2-030 for measurement instruments. Other Part 4 series documents (different specific-application test methods) and applicable national adoptions or EN/UNE/BS versions may also be relevant when implementing garment test programs.

Keywords

electrostatics; ESD; garments; resistive characterization; resistance test methods; personnel grounding; test methods; IEC 61340; TC 101; instrument safety; IEC 61010

FAQ

Q: What is this standard?

A: IEC 61340-4-9:2024 is the international standard that specifies standardized test methods to measure the electrical resistance and resistive behavior of garments intended for electrostatic control and ESD protection.

Q: What does it cover?

A: It covers measurement procedures, conditioning and cleaning requirements, personnel ground-path testing, equipment requirements (including safety references), reporting expectations, and limitations for testing outer garments and garment elements that are conductive or dissipative. It does not guarantee detection of buried conductive layers in materials.

Q: Who typically uses it?

A: Garment and textile manufacturers, ESD garment suppliers, independent test laboratories, QA and compliance teams, ESD program managers in electronics and cleanroom industries, and procurement/specification professionals.

Q: Is it current or superseded?

A: The document referenced here is Edition 3.0 published in 2024 (current). It supersedes the previous edition published in 2016.

Q: Is it part of a series?

A: Yes. It is Part 4-9 of the IEC 61340 series (Electrostatics). The IEC 61340 family includes other parts covering test methods, protection requirements and ESD control programs (for example IEC 61340-2-3, IEC 61340-4-x subparts, and IEC 61340-5-1).

Q: What are the key keywords?

A: Electrostatics, ESD, garments, resistance, resistive characterization, test methods, personnel grounding, IEC 61340, instrument safety.