ISO IEC 80079-20-2-2016 cor1-2017 PDF

Full title and description

ISO/IEC 80079-20-2:2016/Cor 1:2017 — Explosive atmospheres — Part 20-2: Material characteristics — Combustible dusts test methods — Technical Corrigendum 1. This corrigendum provides official corrections and clarifications to the published ISO/IEC 80079-20-2:2016 text to ensure the accuracy and usability of the combustible-dust test methods used for classification and selection of equipment in dust-hazard environments.

Abstract

This document is a technical corrigendum to ISO/IEC 80079-20-2:2016 and contains corrections (editorial and technical) to the original 2016 edition. The underlying standard specifies laboratory test methods for identifying combustible dusts and combustible dust layers, defining conditions and procedures used when determining material characteristics relevant to explosion and ignition risk in dust atmospheres.

General information

• Status: Published (Corrigendum to ISO/IEC 80079-20-2:2016).
• Publication date: March 2017 (Corrigendum publication March 2017; original standard published February 2016).
• Publisher: ISO and IEC (joint publication).
• ICS / categories: 29.260.20 (Electrical apparatus for explosive atmospheres); related ICS 13.230 (Explosion protection).
• Edition / version: Corrigendum 1 (applies to Edition 1 — ISO/IEC 80079-20-2:2016).
• Number of pages: Corrigendum document: published as a short corrigendum (published copies list 10 pages on ISO listings; IEC listing shows a brief corrigendum file).

Scope

The corrigendum amends ISO/IEC 80079-20-2:2016. The base standard defines laboratory test methods to identify combustible dusts and combustible-dust layers and to determine their flammability/combustibility characteristics under defined atmospheric conditions. These methods are intended to support area classification and the proper selection and installation of electrical and mechanical equipment in environments where combustible dust is present. The corrigendum does not change the fundamental scope of the base standard but corrects and clarifies elements of the published test methods and associated text.

Key topics and requirements

• Corrections and clarifications to the published test methods and explanatory text in ISO/IEC 80079-20-2:2016 (editorial and technical corrections).
• References to the combustible dust test procedures used to determine characteristics such as minimum explosible concentration, layer ignition sensitivity and related material flammability properties.
• Specification of the standard atmospheric conditions (temperature, pressure, oxygen content) under which material characteristics are determined (as defined in the base standard).
• Alignment and correction of tables, figures or clause wording that affect interpretation or reproducibility of tests.

Typical use and users

Used by standards committees, testing laboratories, safety and compliance engineers, equipment manufacturers and inspectors involved in hazardous-area classification and selection of equipment for environments with combustible dust. It is also referenced by regulatory bodies and conformity-assessment organizations when applying the requirements of the base standard in national or regional implementations.

Related standards

ISO/IEC 80079 series (parts dealing with material characteristics, equipment protection levels and methods for explosive atmospheres), the original ISO/IEC 80079-20-2:2016 (base document), national adoptions and EN/ISO harmonized versions (EN ISO/IEC 80079-20-2:2016 and its corrigenda/adoptions). The corrigendum is incorporated in national and regional adoptions where applicable (for example in EN/ISO adoptions and national catalogs).

Keywords

combustible dust; dust explosibility; test methods; combustible-dust layers; material characteristics; explosive atmospheres; corrigendum; ISO/IEC 80079-20-2.

FAQ

Q: What is this standard?

A: It is Technical Corrigendum 1 to ISO/IEC 80079-20-2:2016 — an official correction document issued in March 2017 that corrects and clarifies parts of the 2016 combustible-dust test methods standard.

Q: What does it cover?

A: The corrigendum provides corrections (editorial and technical) to the published text of ISO/IEC 80079-20-2:2016, which contains laboratory test methods for identifying combustible dusts and combustible-dust layers and for determining their flammability-related properties used in hazardous-area classification and equipment selection.

Q: Who typically uses it?

A: Testing laboratories, safety engineers, equipment manufacturers, standards committees, regulators and conformity-assessment bodies that implement, test to, or reference ISO/IEC 80079-20-2:2016 and its corrigendum in dust-hazard assessments and product certifications.

Q: Is it current or superseded?

A: The corrigendum (published March 2017) remains the official correction to the 2016 edition. The base standard is subject to periodic review and future revisions; users should check the current status of ISO/IEC 80079-20-2 for any later amendments or a new edition. (The ISO listing shows the 2016 edition and its corrigendum as the current published set pending any subsequent revision.)

Q: Is it part of a series?

A: Yes. It is part of the ISO/IEC 80079 series that addresses explosive atmospheres, with multiple parts covering material characteristics, test methods and protection concepts for equipment intended for use in potentially explosive atmospheres.

Q: What are the key keywords?

A: Combustible dust, dust explosibility, test methods, material characteristics, explosive atmospheres, corrigendum, ISO/IEC 80079-20-2.